Merge pull request 'feat: add TagManager and tag filtering (#30 #31)' (#53) from feature/issue-30-31-tag-manager-filter into develop

Issue #30 - TagManager component:
- Create/delete tags with name, category, icon, color
- Color picker with hex input
- Organized display by category
- Integrated in settings page with tabs

Issue #31 - Tag filter for inventory:
- TagFilter component with multi-select
- Filter button in inventory header
- Active filter display with removable badges
- Filters items by selected tags (OR logic)
- Clean "Clear" button

Updates:
- Extended useTags composable with createTag, deleteTag
- Enhanced settings page with tab navigation
- Improved inventory filtering UX

Closes #30, #31

.env.example

@@ -1,54 +1,20 @@
-# Pantry - Environment Variables Template
+# Supabase Local Development Environment
-# Copy to .env.development for local development
+# Copy this file to .env and adjust as needed
-# Copy to .env.production for production deployment
 
-# ==============================================
+# PostgreSQL
-# Supabase Configuration
+POSTGRES_PASSWORD=postgres
-# ==============================================
 
-# Supabase API URL (from Coolify service)
+# JWT Secret (generate with: openssl rand -base64 32)
-SUPABASE_URL=https://your-supabase-instance.example.com
+# Default is fine for local dev, change for production
+JWT_SECRET=super-secret-jwt-token-with-at-least-32-characters-long
 
-# Supabase Anon Key (public, safe to expose to frontend)
+# API Keys
-SUPABASE_ANON_KEY=your-anon-key-here
+# These are Supabase's default demo keys - OK for local development
+# For production, generate new keys: https://supabase.com/docs/guides/self-hosting#api-keys
+ANON_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZS1kZW1vIiwicm9sZSI6ImFub24iLCJleHAiOjE5ODM4MTI5OTZ9.CRXP1A7WOeoJeXxjNni43kdQwgnWNReilDMblYTn_I0
 
-# Supabase Service Role Key (SECRET - server-side only, never expose to frontend)
+SERVICE_ROLE_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZS1kZW1vIiwicm9sZSI6InNlcnZpY2Vfcm9sZSIsImV4cCI6MTk4MzgxMjk5Nn0.EGIM96RAZx35lJzdJsyH-qQwv8Hdp7fsn3W0YpN81IU
-SUPABASE_SERVICE_ROLE_KEY=your-service-role-key-here
 
-# JWT Secret (for Supabase Auth)
+# Nuxt App Configuration (also copy to app/.env)
-SUPABASE_JWT_SECRET=your-jwt-secret-here
+NUXT_PUBLIC_SUPABASE_URL=http://localhost:54321
-
+NUXT_PUBLIC_SUPABASE_ANON_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZS1kZW1vIiwicm9sZSI6ImFub24iLCJleHAiOjE5ODM4MTI5OTZ9.CRXP1A7WOeoJeXxjNni43kdQwgnWNReilDMblYTn_I0
-# Database Password (for direct PostgreSQL access if needed)
-POSTGRES_PASSWORD=your-postgres-password-here
-
-# ==============================================
-# Application Configuration
-# ==============================================
-
-# Public app URL (where the Nuxt app is hosted)
-PUBLIC_APP_URL=http://localhost:3000
-
-# Node environment
-NODE_ENV=development
-
-# ==============================================
-# External APIs
-# ==============================================
-
-# Open Food Facts API (no auth required)
-OPENFOODFACTS_API_URL=https://world.openfoodfacts.org
-
-# ==============================================
-# Optional: Auth Providers (OIDC)
-# ==============================================
-
-# Google OAuth (optional - configure in Supabase if needed)
-AUTH_GOOGLE_ENABLED=false
-AUTH_GOOGLE_CLIENT_ID=
-AUTH_GOOGLE_SECRET=
-
-# Authentik (optional)
-AUTH_AUTHENTIK_ENABLED=false
-AUTH_AUTHENTIK_URL=
-AUTH_AUTHENTIK_CLIENT_ID=
-AUTH_AUTHENTIK_SECRET=

.env.example.bak

@@ -0,0 +1,54 @@
+# Pantry - Environment Variables Template
+# Copy to .env.development for local development
+# Copy to .env.production for production deployment
+
+# ==============================================
+# Supabase Configuration
+# ==============================================
+
+# Supabase API URL (from Coolify service)
+SUPABASE_URL=https://your-supabase-instance.example.com
+
+# Supabase Anon Key (public, safe to expose to frontend)
+SUPABASE_ANON_KEY=your-anon-key-here
+
+# Supabase Service Role Key (SECRET - server-side only, never expose to frontend)
+SUPABASE_SERVICE_ROLE_KEY=your-service-role-key-here
+
+# JWT Secret (for Supabase Auth)
+SUPABASE_JWT_SECRET=your-jwt-secret-here
+
+# Database Password (for direct PostgreSQL access if needed)
+POSTGRES_PASSWORD=your-postgres-password-here
+
+# ==============================================
+# Application Configuration
+# ==============================================
+
+# Public app URL (where the Nuxt app is hosted)
+PUBLIC_APP_URL=http://localhost:3000
+
+# Node environment
+NODE_ENV=development
+
+# ==============================================
+# External APIs
+# ==============================================
+
+# Open Food Facts API (no auth required)
+OPENFOODFACTS_API_URL=https://world.openfoodfacts.org
+
+# ==============================================
+# Optional: Auth Providers (OIDC)
+# ==============================================
+
+# Google OAuth (optional - configure in Supabase if needed)
+AUTH_GOOGLE_ENABLED=false
+AUTH_GOOGLE_CLIENT_ID=
+AUTH_GOOGLE_SECRET=
+
+# Authentik (optional)
+AUTH_AUTHENTIK_ENABLED=false
+AUTH_AUTHENTIK_URL=
+AUTH_AUTHENTIK_CLIENT_ID=
+AUTH_AUTHENTIK_SECRET=

README.md

@@ -22,26 +22,37 @@ A simple, modern kitchen inventory app that the whole family can actually use. B
 - 🔒 **Self-hosted** — Your data stays yours
 - 🌐 **Open Food Facts** — Auto-fill product data from barcodes
 
-## 🚀 Quick Start
+## 🚀 Quick Start (Local Development)
 
 ```bash
-# Clone
+# Clone repository
 git clone https://gitea.jeanlucmakiola.de/pantry-app/pantry.git
+cd pantry
 
-# Start services (Docker Compose)
+# One-command startup
-docker-compose up -d
+./dev.sh
-
-# Access at http://localhost:3000
 ```
 
+**What this does:**
+1. Starts Supabase (PostgreSQL + API + Auth + Studio)
+2. Installs frontend dependencies
+3. Launches Nuxt dev server
+
+**Access:**
+- App: `http://localhost:3000`
+- Supabase Studio: `http://localhost:54323`
+
+**See [DEV_SETUP.md](DEV_SETUP.md) for detailed setup guide.**
+
 ## 📚 Documentation
 
-- [**Project Plan**](docs/PROJECT_PLAN.md) — Vision, roadmap, phases
+- **[Getting Started](docs/development/getting-started.md)** — First-time setup (5 minutes)
-- [**Architecture**](docs/ARCHITECTURE.md) — Tech stack, data model, design decisions
+- **[Local Setup Guide](docs/development/local-setup.md)** — Detailed Docker Compose setup
-- [**Database Schema**](docs/DATABASE.md) — Tables, relationships, RLS policies
+- **[Project Plan](docs/PROJECT_PLAN.md)** — Vision, roadmap, MVP phases
-- [**API Reference**](docs/API.md) — Endpoints, Supabase functions
+- **[Architecture](docs/architecture/overview.md)** — Tech stack, design decisions
-- [**Development Guide**](docs/DEVELOPMENT.md) — Setup, workflow, conventions
+- **[Database Schema](docs/architecture/database.md)** — Tables, RLS policies, migrations
-- [**Deployment**](docs/DEPLOYMENT.md) — Docker, Coolify, production setup
+- **[Development Workflow](docs/development/workflow.md)** — Git flow, conventions
+- **[Full Documentation Index](docs/README.md)** — Complete docs navigation
 
 ## 🛠️ Tech Stack
 
@@ -73,18 +84,32 @@ pantry/
 3. **Extendable** — Clean architecture for future features
 4. **Self-hosted first** — No SaaS plans, no lock-in
 
-## 📋 MVP Status
+## 📋 MVP Status (14/34 Complete - 41.2%)
 
-**Target:** v0.1 (6-week sprint)
+**Current Phase:** Week 2 ✅ Complete, Week 3 🔄 In Progress
+
+✅ **Week 1 - Foundation (6/6)**
+- Database schema + RLS policies
+- Nuxt 4 app scaffold
+- Supabase integration
+- App layout
+
+✅ **Week 2 - Core Inventory (8/8)**
+- SQL helper functions
+- Seed data (units + tags)
+- Inventory CRUD UI
+- Add/Edit/Delete components
+
+🔄 **Week 3 - Barcode Scanning (1/5)**
+- BarcodeScanner component
+- html5-qrcode integration
+- Product lookup (pending)
+- Scan-to-add flow (pending)
+
+⏸️ **Week 4-6** - Tag UI, PWA, Deployment (20 issues)
 
 See [PROJECT_PLAN.md](docs/PROJECT_PLAN.md) for detailed roadmap.
 
-- [ ] Foundation (Nuxt + Supabase + Auth)
-- [ ] Core inventory (CRUD, tags, units)
-- [ ] Barcode scanning (PWA camera + Open Food Facts)
-- [ ] Mobile polish (PWA, offline)
-- [ ] Docker deployment
-
 ## 🤝 Contributing
 
 This is an early-stage project. Contributions welcome once v0.1 ships.

SETUP.md

@@ -1,214 +0,0 @@
-# Pantry - Setup Guide
-
-## ✅ Current Status
-
-### Infrastructure (Complete)
-
-- **Supabase Dev Instance**: Running on Coolify
-  - URL: `https://supabasekong-ewo8wssk4gs8cgg0c8kosk40.jeanlucmakiola.de`
-  - Status: ✅ Healthy
-  - Services: PostgreSQL, Auth (GoTrue), Realtime, Storage, PostgREST
-  
-### Environment Configuration (Complete)
-
-- `.env.example` - Template for all environments
-- `.env.development` - Dev credentials (Coolify Supabase)
-- `.gitignore` - Protects secrets
-
----
-
-## 🚀 Quick Start (Development)
-
-### Prerequisites
-
-- **Bun** 1.0+ (or Node.js 20+)
-- **Git** access to repository
-- **Access to Coolify** Supabase instance (credentials in `.env.development`)
-
-### Setup Steps
-
-1. **Clone Repository**
-   ```bash
-   git clone https://gitea.jeanlucmakiola.de/pantry-app/pantry.git
-   cd pantry
-   ```
-
-2. **Copy Development Environment**
-   ```bash
-   cp .env.development .env
-   ```
-
-3. **Install Dependencies** (once `app/` exists)
-   ```bash
-   cd app
-   bun install
-   ```
-
-4. **Apply Database Migrations** (once created)
-   ```bash
-   cd supabase
-   # TBD: Migration command
-   ```
-
-5. **Start Development Server**
-   ```bash
-   cd app
-   bun run dev
-   ```
-
-6. **Access App**
-   - App: `http://localhost:3000`
-   - Supabase API: `https://supabasekong-ewo8wssk4gs8cgg0c8kosk40.jeanlucmakiola.de`
-
----
-
-## 🗄️ Supabase Instance Details
-
-### Endpoints
-
-| Service | URL |
-|---------|-----|
-| API (PostgREST) | `https://supabasekong-ewo8wssk4gs8cgg0c8kosk40.jeanlucmakiola.de/rest/v1/` |
-| Auth | `https://supabasekong-ewo8wssk4gs8cgg0c8kosk40.jeanlucmakiola.de/auth/v1/` |
-| Realtime | `wss://supabasekong-ewo8wssk4gs8cgg0c8kosk40.jeanlucmakiola.de/realtime/v1/` |
-| Storage | `https://supabasekong-ewo8wssk4gs8cgg0c8kosk40.jeanlucmakiola.de/storage/v1/` |
-
-### Credentials
-
-**Public (safe to use in frontend):**
-- Anon Key: In `.env.development`
-
-**Secret (server-side only):**
-- Service Role Key: In `.env.development`
-- JWT Secret: In `.env.development`
-- Postgres Password: In `.env.development`
-
-### Dashboard Access
-
-**Supabase Studio:**
-- URL: `https://supabasekong-ewo8wssk4gs8cgg0c8kosk40.jeanlucmakiola.de` (check Coolify for Studio port/subdomain)
-- Username: `wJZbjs3Yd5P63cs9`
-- Password: `Qv3byDujNzYe8r7YRxhNwh3DPTvZBWtN`
-
-**Direct PostgreSQL Access** (for migrations/debugging):
-- Host: `supabase-db` (or Coolify service FQDN)
-- Database: `postgres`
-- User: `postgres`
-- Password: `55P0NVRUltRqzZYksuXTFli5iXwbQvgu`
-- Port: `5432`
-
-**MinIO (Storage):**
-- Admin User: `EaTXrXvjo1R4hsaI`
-- Admin Password: `gCZOphxAExNC17GYFwtw60WzTU0P8HW8`
-
----
-
-## 📋 Next Steps
-
-### Week 1: Foundation (In Progress)
-
-- [x] ~~Supabase dev environment setup~~ (Complete)
-- [x] ~~Environment configuration~~ (Complete)
-- [ ] Create database schema (`supabase/migrations/`)
-- [ ] Scaffold Nuxt 4 app (`app/`)
-- [ ] Implement email/password auth
-- [ ] Deploy first version to Coolify
-
-### Immediate Tasks
-
-1. **Database Schema** (#10)
-   - Create migration files in `supabase/migrations/`
-   - Tables: `inventory_items`, `products`, `tags`, `item_tags`, `units`
-   - See: `docs/DATABASE.md`
-
-2. **Nuxt Scaffold** (#8)
-   - Initialize Nuxt 4 project in `app/`
-   - Install dependencies: `@nuxtjs/supabase`, `@nuxt/ui`, Tailwind
-   - Configure `nuxt.config.ts`
-
-3. **Auth Implementation** (#11)
-   - Supabase Auth integration
-   - Login/signup pages
-   - Protected routes
-
----
-
-## 🔧 Development Workflow
-
-### Making Changes
-
-```bash
-# 1. Create feature branch
-git checkout -b feature/your-feature
-
-# 2. Make changes
-# Edit files...
-
-# 3. Test locally
-bun run dev
-
-# 4. Commit and push
-git add .
-git commit -m "feat: Your feature description"
-git push origin feature/your-feature
-
-# 5. Create PR on Gitea
-```
-
-### Database Migrations
-
-```bash
-# Create new migration
-cd supabase/migrations
-touch 001_initial_schema.sql
-
-# Edit migration file (SQL)
-# Test locally against Coolify Supabase instance
-
-# Apply migration (TBD - once we set up migration tooling)
-```
-
----
-
-## 🚨 Troubleshooting
-
-### Can't connect to Supabase
-
-**Test connection:**
-```bash
-curl -s "https://supabasekong-ewo8wssk4gs8cgg0c8kosk40.jeanlucmakiola.de/rest/v1/" \
-  -H "apikey: <ANON_KEY>"
-```
-
-Should return OpenAPI spec. If not:
-- Check Coolify service status
-- Verify URL in `.env`
-- Check network/firewall
-
-### Environment variables not loading
-
-- Ensure `.env` exists in project root
-- Check `.env` has no syntax errors
-- Restart dev server after changes
-
-### Database migration issues
-
-- Verify `SUPABASE_SERVICE_ROLE_KEY` is set
-- Check migration SQL syntax
-- Review Supabase logs in Coolify
-
----
-
-## 📚 Documentation
-
-- [Project Plan](docs/PROJECT_PLAN.md) - Vision, roadmap
-- [Architecture](docs/ARCHITECTURE.md) - Tech stack, design
-- [Database Schema](docs/DATABASE.md) - Tables, RLS, functions
-- [API Reference](docs/API.md) - Endpoints, usage
-- [Development Guide](docs/DEVELOPMENT.md) - Conventions, workflow
-- [Deployment](docs/DEPLOYMENT.md) - Docker, Coolify
-
----
-
-**Last Updated:** 2026-02-08  
-**Status:** Week 1 - Foundation in progress

app/bun.lock

@@ -8,6 +8,7 @@
         "@nuxt/fonts": "^0.13.0",
         "@nuxt/ui": "^4.4.0",
         "@supabase/supabase-js": "^2.95.3",
+        "html5-qrcode": "^2.3.8",
         "nuxt": "^4.3.1",
         "vue": "^3.5.28",
         "vue-router": "^4.6.4",
@@ -1076,6 +1077,8 @@
 
     "hookable": ["hookable@5.5.3", "", {}, "sha512-Yc+BQe8SvoXH1643Qez1zqLRmbA5rCL+sSmk6TVos0LWVfNIB7PGncdlId77WzLGSIB5KaWgTaNTs2lNVEI6VQ=="],
 
+    "html5-qrcode": ["html5-qrcode@2.3.8", "", {}, "sha512-jsr4vafJhwoLVEDW3n1KvPnCCXWaQfRng0/EEYk1vNcQGcG/htAdhJX0be8YyqMoSz7+hZvOZSTAepsabiuhiQ=="],
+
     "http-assert": ["http-assert@1.5.0", "", { "dependencies": { "deep-equal": "~1.0.1", "http-errors": "~1.8.0" } }, "sha512-uPpH7OKX4H25hBmU6G1jWNaqJGpTXxey+YOUizJUAgu0AjLUeC8D73hTrhvDS5D+GJN1DN1+hhc/eF/wpxtp0w=="],
 
     "http-errors": ["http-errors@2.0.1", "", { "dependencies": { "depd": "~2.0.0", "inherits": "~2.0.4", "setprototypeof": "~1.2.0", "statuses": "~2.0.2", "toidentifier": "~1.0.1" } }, "sha512-4FbRdAX+bSdmo4AUFuS0WNiPz8NgFt+r8ThgNWmlrjQjt1Q7ZR9+zTlce2859x4KSXrwIsaeTqDoKQmtP8pLmQ=="],

app/components/inventory/AddItemForm.vue

@@ -0,0 +1,231 @@
+<template>
+  <UCard>
+    <template #header>
+      <div class="flex items-center justify-between">
+        <h3 class="text-lg font-semibold">Add New Item</h3>
+        <UButton 
+          icon="i-heroicons-x-mark" 
+          color="gray" 
+          variant="ghost"
+          @click="$emit('close')"
+        />
+      </div>
+    </template>
+
+    <form @submit.prevent="handleSubmit" class="space-y-4">
+      <!-- Item Name -->
+      <UFormGroup label="Item Name" required>
+        <UInput 
+          v-model="form.name"
+          placeholder="e.g. Whole Milk, Pasta, Tomatoes"
+          size="lg"
+          autofocus
+        />
+      </UFormGroup>
+
+      <!-- Quantity & Unit -->
+      <div class="grid grid-cols-2 gap-3">
+        <UFormGroup label="Quantity" required>
+          <UInput 
+            v-model.number="form.quantity"
+            type="number"
+            min="0.01"
+            step="0.01"
+            placeholder="1"
+            size="lg"
+          />
+        </UFormGroup>
+
+        <UFormGroup label="Unit" required>
+          <USelect 
+            v-model="form.unit_id"
+            :options="unitOptions"
+            option-attribute="label"
+            value-attribute="value"
+            placeholder="Select unit"
+            size="lg"
+          />
+        </UFormGroup>
+      </div>
+
+      <!-- Expiry Date -->
+      <UFormGroup label="Expiry Date" hint="Optional">
+        <UInput 
+          v-model="form.expiry_date"
+          type="date"
+          size="lg"
+        />
+      </UFormGroup>
+
+      <!-- Notes -->
+      <UFormGroup label="Notes" hint="Optional">
+        <UTextarea
+          v-model="form.notes"
+          placeholder="Any additional notes..."
+          :rows="2"
+        />
+      </UFormGroup>
+
+      <!-- Tags -->
+      <UFormGroup label="Tags" hint="Optional">
+        <TagsTagPicker v-model="selectedTags" />
+      </UFormGroup>
+
+      <!-- Submit -->
+      <div class="flex gap-2 pt-2">
+        <UButton 
+          type="submit"
+          color="primary"
+          size="lg"
+          class="flex-1"
+          :loading="submitting"
+          :disabled="!isValid"
+        >
+          Add Item
+        </UButton>
+        <UButton 
+          color="gray"
+          size="lg"
+          variant="soft"
+          @click="$emit('close')"
+        >
+          Cancel
+        </UButton>
+      </div>
+    </form>
+  </UCard>
+</template>
+
+<script setup lang="ts">
+const { addInventoryItem, addItemTags } = useInventory()
+const { getUnits } = useUnits()
+
+const props = defineProps<{
+  initialData?: {
+    barcode?: string
+    name?: string
+    brand?: string
+    image_url?: string
+    quantity?: string
+  }
+}>()
+
+const emit = defineEmits<{
+  close: []
+  added: [item: any]
+}>()
+
+// Form state
+const form = reactive({
+  name: '',
+  quantity: 1,
+  unit_id: '',
+  expiry_date: '',
+  notes: ''
+})
+
+const submitting = ref(false)
+const selectedTags = ref<any[]>([])
+
+// Load units
+const units = ref<any[]>([])
+
+onMounted(async () => {
+  const unitsResult = await getUnits()
+  units.value = unitsResult.data || []
+
+  // Set default unit (Piece)
+  const defaultUnit = units.value.find(u => u.abbreviation === 'pc')
+  if (defaultUnit) {
+    form.unit_id = defaultUnit.id
+  }
+
+  // Pre-fill from initial data (scan-to-add flow)
+  if (props.initialData) {
+    if (props.initialData.name) {
+      form.name = props.initialData.name
+    }
+    
+    // Add brand to notes if available
+    if (props.initialData.brand) {
+      form.notes = `Brand: ${props.initialData.brand}`
+      
+      if (props.initialData.barcode) {
+        form.notes += `\nBarcode: ${props.initialData.barcode}`
+      }
+    } else if (props.initialData.barcode) {
+      form.notes = `Barcode: ${props.initialData.barcode}`
+    }
+
+    // Parse quantity if available (e.g., "750g")
+    if (props.initialData.quantity) {
+      const quantityMatch = props.initialData.quantity.match(/^([\d.]+)\s*([a-zA-Z]+)$/)
+      if (quantityMatch) {
+        form.quantity = parseFloat(quantityMatch[1])
+        // Try to match unit
+        const unitAbbr = quantityMatch[2].toLowerCase()
+        const matchedUnit = units.value.find(u => 
+          u.abbreviation.toLowerCase() === unitAbbr
+        )
+        if (matchedUnit) {
+          form.unit_id = matchedUnit.id
+        }
+      }
+    }
+  }
+})
+
+// Unit options for select
+const unitOptions = computed(() => {
+  const grouped: Record<string, any[]> = {}
+  
+  for (const unit of units.value) {
+    const type = unit.unit_type
+    if (!grouped[type]) grouped[type] = []
+    grouped[type].push({
+      label: `${unit.name} (${unit.abbreviation})`,
+      value: unit.id
+    })
+  }
+
+  return Object.entries(grouped).flatMap(([type, options]) => [
+    { label: `— ${type.charAt(0).toUpperCase() + type.slice(1)} —`, value: '', disabled: true },
+    ...options
+  ])
+})
+
+// Validation
+const isValid = computed(() => {
+  return form.name.trim().length > 0 && form.quantity > 0 && form.unit_id
+})
+
+// Submit
+const handleSubmit = async () => {
+  if (!isValid.value) return
+
+  submitting.value = true
+
+  const { data, error } = await addInventoryItem({
+    name: form.name.trim(),
+    quantity: form.quantity,
+    unit_id: form.unit_id,
+    expiry_date: form.expiry_date || null,
+    notes: form.notes.trim() || null
+  })
+
+  if (error) {
+    alert('Failed to add item: ' + error.message)
+    submitting.value = false
+    return
+  }
+
+  // Add tags if any selected
+  if (data && selectedTags.value.length > 0) {
+    const tagIds = selectedTags.value.map(t => t.id)
+    await addItemTags(data.id, tagIds)
+  }
+
+  emit('added', data)
+  submitting.value = false
+}
+</script>

app/components/inventory/EditItemModal.vue

@@ -0,0 +1,184 @@
+<template>
+  <UModal v-model="isOpen">
+    <UCard>
+      <template #header>
+        <div class="flex items-center justify-between">
+          <h3 class="text-lg font-semibold">Edit Item</h3>
+          <UButton 
+            icon="i-heroicons-x-mark" 
+            color="gray" 
+            variant="ghost"
+            @click="close"
+          />
+        </div>
+      </template>
+
+      <form @submit.prevent="handleSubmit" class="space-y-4">
+        <!-- Item Name -->
+        <UFormGroup label="Item Name" required>
+          <UInput 
+            v-model="form.name"
+            placeholder="Item name"
+            size="lg"
+          />
+        </UFormGroup>
+
+        <!-- Quantity & Unit -->
+        <div class="grid grid-cols-2 gap-3">
+          <UFormGroup label="Quantity" required>
+            <UInput 
+              v-model.number="form.quantity"
+              type="number"
+              min="0.01"
+              step="0.01"
+              size="lg"
+            />
+          </UFormGroup>
+
+          <UFormGroup label="Unit" required>
+            <USelect 
+              v-model="form.unit_id"
+              :options="unitOptions"
+              option-attribute="label"
+              value-attribute="value"
+              size="lg"
+            />
+          </UFormGroup>
+        </div>
+
+        <!-- Expiry Date -->
+        <UFormGroup label="Expiry Date" hint="Optional">
+          <UInput 
+            v-model="form.expiry_date"
+            type="date"
+            size="lg"
+          />
+        </UFormGroup>
+
+        <!-- Notes -->
+        <UFormGroup label="Notes" hint="Optional">
+          <UTextarea
+            v-model="form.notes"
+            placeholder="Any additional notes..."
+            :rows="2"
+          />
+        </UFormGroup>
+
+        <!-- Submit -->
+        <div class="flex gap-2 pt-2">
+          <UButton 
+            type="submit"
+            color="primary"
+            size="lg"
+            class="flex-1"
+            :loading="submitting"
+            :disabled="!isValid"
+          >
+            Save Changes
+          </UButton>
+          <UButton 
+            color="gray"
+            size="lg"
+            variant="soft"
+            @click="close"
+          >
+            Cancel
+          </UButton>
+        </div>
+      </form>
+    </UCard>
+  </UModal>
+</template>
+
+<script setup lang="ts">
+const { updateInventoryItem } = useInventory()
+const { getUnits } = useUnits()
+
+const props = defineProps<{
+  item: any | null
+}>()
+
+const emit = defineEmits<{
+  close: []
+  updated: [item: any]
+}>()
+
+const isOpen = ref(false)
+const submitting = ref(false)
+const units = ref<any[]>([])
+
+const form = reactive({
+  name: '',
+  quantity: 1,
+  unit_id: '',
+  expiry_date: '',
+  notes: ''
+})
+
+// Load units
+onMounted(async () => {
+  const { data } = await getUnits()
+  units.value = data || []
+})
+
+// Unit options for select
+const unitOptions = computed(() => {
+  return units.value.map(unit => ({
+    label: `${unit.name} (${unit.abbreviation})`,
+    value: unit.id
+  }))
+})
+
+// Watch for item changes (open modal)
+watch(() => props.item, (newItem) => {
+  if (newItem) {
+    form.name = newItem.name
+    form.quantity = Number(newItem.quantity)
+    form.unit_id = newItem.unit_id
+    form.expiry_date = newItem.expiry_date || ''
+    form.notes = newItem.notes || ''
+    isOpen.value = true
+  }
+}, { immediate: true })
+
+// Watch modal close
+watch(isOpen, (val) => {
+  if (!val) {
+    emit('close')
+  }
+})
+
+// Validation
+const isValid = computed(() => {
+  return form.name.trim().length > 0 && form.quantity > 0 && form.unit_id
+})
+
+const close = () => {
+  isOpen.value = false
+}
+
+// Submit
+const handleSubmit = async () => {
+  if (!isValid.value || !props.item) return
+
+  submitting.value = true
+
+  const { data, error } = await updateInventoryItem(props.item.id, {
+    name: form.name.trim(),
+    quantity: form.quantity,
+    unit_id: form.unit_id,
+    expiry_date: form.expiry_date || null,
+    notes: form.notes.trim() || null
+  })
+
+  if (error) {
+    alert('Failed to update item: ' + error.message)
+    submitting.value = false
+    return
+  }
+
+  emit('updated', data)
+  submitting.value = false
+  close()
+}
+</script>

app/components/inventory/InventoryCard.vue

@@ -0,0 +1,148 @@
+<template>
+  <UCard class="hover:shadow-lg transition-shadow">
+    <!-- Item Image -->
+    <div class="aspect-square bg-gray-100 rounded-lg mb-3 overflow-hidden">
+      <img 
+        v-if="item.product?.image_url" 
+        :src="item.product.image_url" 
+        :alt="item.name"
+        class="w-full h-full object-cover"
+      />
+      <div v-else class="w-full h-full flex items-center justify-center">
+        <UIcon name="i-heroicons-cube" class="w-16 h-16 text-gray-300" />
+      </div>
+    </div>
+
+    <!-- Item Info -->
+    <div class="space-y-2">
+      <div>
+        <h3 class="font-semibold text-gray-900 truncate">{{ item.name }}</h3>
+        <p v-if="item.product?.brand" class="text-sm text-gray-600 truncate">
+          {{ item.product.brand }}
+        </p>
+      </div>
+
+      <!-- Quantity -->
+      <div class="flex items-center justify-between">
+        <span class="text-lg font-medium text-gray-900">
+          {{ item.quantity }} {{ item.unit?.abbreviation }}
+        </span>
+
+        <!-- Quick Actions -->
+        <div class="flex gap-1">
+          <UButton 
+            icon="i-heroicons-minus"
+            size="xs"
+            color="gray"
+            variant="ghost"
+            @click="$emit('update-quantity', item.id, -1)"
+            :disabled="item.quantity <= 1"
+          />
+          <UButton 
+            icon="i-heroicons-plus"
+            size="xs"
+            color="gray"
+            variant="ghost"
+            @click="$emit('update-quantity', item.id, 1)"
+          />
+        </div>
+      </div>
+
+      <!-- Tags -->
+      <div v-if="item.tags && item.tags.length > 0" class="flex flex-wrap gap-1">
+        <TagsTagBadge
+          v-for="tagItem in item.tags.slice(0, 3)"
+          :key="tagItem.tag.id"
+          :tag="tagItem.tag"
+          size="sm"
+        />
+        <UBadge v-if="item.tags.length > 3" size="xs" color="gray">
+          +{{ item.tags.length - 3 }}
+        </UBadge>
+      </div>
+
+      <!-- Expiry Warning -->
+      <div v-if="daysUntilExpiry !== null" class="text-xs">
+        <UBadge 
+          :color="expiryColor"
+          variant="soft"
+          class="w-full justify-center"
+        >
+          <UIcon :name="expiryIcon" class="mr-1" />
+          {{ expiryText }}
+        </UBadge>
+      </div>
+    </div>
+
+    <!-- Action Buttons -->
+    <template #footer>
+      <div class="flex gap-2">
+        <UButton 
+          icon="i-heroicons-pencil"
+          size="sm"
+          color="gray"
+          variant="soft"
+          class="flex-1"
+          @click="$emit('edit', item)"
+        >
+          Edit
+        </UButton>
+        <UButton 
+          icon="i-heroicons-trash"
+          size="sm"
+          color="red"
+          variant="soft"
+          @click="$emit('delete', item.id)"
+        >
+          Delete
+        </UButton>
+      </div>
+    </template>
+  </UCard>
+</template>
+
+<script setup lang="ts">
+const props = defineProps<{
+  item: any
+}>()
+
+defineEmits<{
+  edit: [item: any]
+  delete: [id: string]
+  'update-quantity': [id: string, change: number]
+}>()
+
+// Calculate days until expiry
+const daysUntilExpiry = computed(() => {
+  if (!props.item.expiry_date) return null
+  
+  const today = new Date()
+  const expiry = new Date(props.item.expiry_date)
+  const diff = Math.ceil((expiry.getTime() - today.getTime()) / (1000 * 60 * 60 * 24))
+  
+  return diff
+})
+
+// Expiry badge styling
+const expiryColor = computed(() => {
+  if (daysUntilExpiry.value === null) return 'gray'
+  if (daysUntilExpiry.value < 0) return 'red'
+  if (daysUntilExpiry.value <= 3) return 'orange'
+  if (daysUntilExpiry.value <= 7) return 'yellow'
+  return 'green'
+})
+
+const expiryIcon = computed(() => {
+  if (daysUntilExpiry.value === null) return 'i-heroicons-calendar'
+  if (daysUntilExpiry.value < 0) return 'i-heroicons-exclamation-triangle'
+  return 'i-heroicons-clock'
+})
+
+const expiryText = computed(() => {
+  if (daysUntilExpiry.value === null) return 'No expiry'
+  if (daysUntilExpiry.value < 0) return `Expired ${Math.abs(daysUntilExpiry.value)} days ago`
+  if (daysUntilExpiry.value === 0) return 'Expires today'
+  if (daysUntilExpiry.value === 1) return 'Expires tomorrow'
+  return `Expires in ${daysUntilExpiry.value} days`
+})
+</script>

app/components/inventory/InventoryList.vue

@@ -0,0 +1,147 @@
+<template>
+  <div class="space-y-4">
+    <!-- Loading State -->
+    <div v-if="loading" class="text-center py-12">
+      <UIcon name="i-heroicons-arrow-path" class="w-8 h-8 text-gray-400 animate-spin mx-auto mb-2" />
+      <p class="text-gray-600">Loading inventory...</p>
+    </div>
+
+    <!-- Error State -->
+    <div v-else-if="error" class="text-center py-12">
+      <UIcon name="i-heroicons-exclamation-triangle" class="w-12 h-12 text-red-500 mx-auto mb-4" />
+      <p class="text-red-600 mb-4">{{ error }}</p>
+      <UButton @click="loadInventory" color="gray">Retry</UButton>
+    </div>
+
+    <!-- Empty State -->
+    <div v-else-if="!items || items.length === 0" class="text-center py-12">
+      <UIcon name="i-heroicons-inbox" class="w-16 h-16 text-gray-400 mx-auto mb-4" />
+      <h3 class="text-lg font-semibold text-gray-900 mb-2">
+        No items yet
+      </h3>
+      <p class="text-gray-600 mb-6">
+        Start by scanning a barcode or adding an item manually.
+      </p>
+      <div class="flex gap-2 justify-center">
+        <UButton 
+          to="/scan" 
+          color="primary"
+          icon="i-heroicons-qr-code"
+        >
+          Scan First Item
+        </UButton>
+        <UButton 
+          @click="$emit('add-item')"
+          color="white"
+          icon="i-heroicons-plus"
+        >
+          Add Manually
+        </UButton>
+      </div>
+    </div>
+
+    <!-- Inventory Grid -->
+    <div v-else class="grid gap-4 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4">
+      <InventoryCard
+        v-for="item in filteredItems"
+        :key="item.id"
+        :item="item"
+        @edit="$emit('edit-item', item)"
+        @delete="handleDelete(item.id)"
+        @update-quantity="handleQuantityUpdate"
+      />
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+const { getInventory, deleteInventoryItem, updateQuantity } = useInventory()
+
+const props = defineProps<{
+  refresh?: boolean
+  tagFilters?: string[]
+}>()
+
+const emit = defineEmits<{
+  'add-item': []
+  'edit-item': [item: any]
+}>()
+
+const items = ref<any[]>([])
+const loading = ref(true)
+const error = ref<string | null>(null)
+
+const loadInventory = async () => {
+  loading.value = true
+  error.value = null
+
+  const { data, error: fetchError } = await getInventory()
+
+  if (fetchError) {
+    error.value = 'Failed to load inventory. Please try again.'
+    loading.value = false
+    return
+  }
+
+  items.value = data || []
+  loading.value = false
+}
+
+// Computed filtered items
+const filteredItems = computed(() => {
+  if (!props.tagFilters || props.tagFilters.length === 0) {
+    return items.value
+  }
+
+  // Filter items that have at least one of the selected tags
+  return items.value.filter(item => {
+    if (!item.tags || item.tags.length === 0) return false
+    
+    const itemTagIds = item.tags.map((t: any) => t.tag.id)
+    return props.tagFilters!.some(filterId => itemTagIds.includes(filterId))
+  })
+})
+
+const handleDelete = async (id: string) => {
+  if (!confirm('Are you sure you want to delete this item?')) {
+    return
+  }
+
+  const { error: deleteError } = await deleteInventoryItem(id)
+
+  if (deleteError) {
+    alert('Failed to delete item')
+    return
+  }
+
+  // Remove from local list
+  items.value = items.value.filter(item => item.id !== id)
+}
+
+const handleQuantityUpdate = async (id: string, change: number) => {
+  const result = await updateQuantity(id, change)
+
+  if (result.error) {
+    alert('Failed to update quantity')
+    return
+  }
+
+  // Reload inventory after update
+  await loadInventory()
+}
+
+// Load on mount
+onMounted(loadInventory)
+
+// Watch for refresh prop
+watch(() => props.refresh, (newVal) => {
+  if (newVal) {
+    loadInventory()
+  }
+})
+
+// Expose reload method
+defineExpose({
+  reload: loadInventory
+})
+</script>

app/components/scan/BarcodeScanner.vue

@@ -0,0 +1,161 @@
+<template>
+  <div class="relative">
+    <!-- Scanner Container -->
+    <div 
+      :id="scannerId" 
+      ref="scannerRef"
+      class="w-full rounded-lg overflow-hidden bg-black"
+      :class="{ 'aspect-video': !isScanning, 'min-h-[300px]': isScanning }"
+    />
+
+    <!-- Overlay when not scanning -->
+    <div 
+      v-if="!isScanning && !error" 
+      class="absolute inset-0 flex items-center justify-center bg-gray-900 rounded-lg"
+    >
+      <div class="text-center">
+        <UIcon name="i-heroicons-camera" class="w-16 h-16 text-gray-400 mb-4" />
+        <UButton 
+          color="primary" 
+          size="lg"
+          icon="i-heroicons-qr-code"
+          @click="startScanning"
+        >
+          Start Camera
+        </UButton>
+      </div>
+    </div>
+
+    <!-- Error State -->
+    <div 
+      v-if="error" 
+      class="absolute inset-0 flex items-center justify-center bg-gray-900 rounded-lg"
+    >
+      <div class="text-center px-4">
+        <UIcon name="i-heroicons-exclamation-triangle" class="w-12 h-12 text-red-400 mb-4" />
+        <p class="text-white mb-4">{{ error }}</p>
+        <div class="flex gap-2 justify-center">
+          <UButton @click="startScanning" color="primary">Try Again</UButton>
+          <UButton @click="$emit('manual-entry')" color="gray">Enter Manually</UButton>
+        </div>
+      </div>
+    </div>
+
+    <!-- Manual Barcode Entry -->
+    <div class="mt-4">
+      <UFormGroup label="Or enter barcode manually">
+        <div class="flex gap-2">
+          <UInput 
+            v-model="manualBarcode"
+            placeholder="e.g. 8000500310427"
+            size="lg"
+            class="flex-1"
+            @keyup.enter="submitManualBarcode"
+          />
+          <UButton 
+            color="primary"
+            size="lg"
+            :disabled="!manualBarcode.trim()"
+            @click="submitManualBarcode"
+          >
+            Lookup
+          </UButton>
+        </div>
+      </UFormGroup>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { Html5Qrcode, Html5QrcodeSupportedFormats } from 'html5-qrcode'
+
+const emit = defineEmits<{
+  'barcode-detected': [barcode: string]
+  'manual-entry': []
+}>()
+
+const scannerId = 'barcode-scanner'
+const scannerRef = ref<HTMLElement | null>(null)
+const isScanning = ref(false)
+const error = ref<string | null>(null)
+const manualBarcode = ref('')
+
+let html5QrCode: Html5Qrcode | null = null
+
+const startScanning = async () => {
+  error.value = null
+
+  try {
+    if (!html5QrCode) {
+      html5QrCode = new Html5Qrcode(scannerId, {
+        formatsToSupport: [
+          Html5QrcodeSupportedFormats.EAN_13,
+          Html5QrcodeSupportedFormats.EAN_8,
+          Html5QrcodeSupportedFormats.UPC_A,
+          Html5QrcodeSupportedFormats.UPC_E,
+          Html5QrcodeSupportedFormats.CODE_128,
+          Html5QrcodeSupportedFormats.CODE_39,
+          Html5QrcodeSupportedFormats.QR_CODE
+        ],
+        verbose: false
+      })
+    }
+
+    await html5QrCode.start(
+      { facingMode: 'environment' },
+      {
+        fps: 10,
+        qrbox: { width: 250, height: 150 },
+        aspectRatio: 1.777
+      },
+      onScanSuccess,
+      onScanFailure
+    )
+
+    isScanning.value = true
+  } catch (err: any) {
+    console.error('Scanner error:', err)
+    
+    if (err.toString().includes('NotAllowedError')) {
+      error.value = 'Camera permission denied. Please allow camera access and try again.'
+    } else if (err.toString().includes('NotFoundError')) {
+      error.value = 'No camera found. Please use a device with a camera or enter the barcode manually.'
+    } else {
+      error.value = 'Could not start camera. Try entering the barcode manually.'
+    }
+  }
+}
+
+const stopScanning = async () => {
+  if (html5QrCode && isScanning.value) {
+    try {
+      await html5QrCode.stop()
+    } catch (err) {
+      console.error('Error stopping scanner:', err)
+    }
+    isScanning.value = false
+  }
+}
+
+const onScanSuccess = (decodedText: string) => {
+  // Stop scanning after successful read
+  stopScanning()
+  emit('barcode-detected', decodedText)
+}
+
+const onScanFailure = (_errorMessage: string) => {
+  // Ignore - this fires continuously when no barcode is detected
+}
+
+const submitManualBarcode = () => {
+  if (manualBarcode.value.trim()) {
+    emit('barcode-detected', manualBarcode.value.trim())
+    manualBarcode.value = ''
+  }
+}
+
+// Cleanup on unmount
+onUnmounted(() => {
+  stopScanning()
+})
+</script>

app/components/tags/TagBadge.vue

@@ -0,0 +1,71 @@
+<template>
+  <UBadge 
+    :style="badgeStyle"
+    :class="badgeClasses"
+    v-bind="$attrs"
+  >
+    <span v-if="tag.icon" class="mr-1">{{ tag.icon }}</span>
+    <span>{{ tag.name }}</span>
+    <UButton
+      v-if="removable"
+      icon="i-heroicons-x-mark"
+      size="2xs"
+      color="white"
+      variant="link"
+      class="ml-1 -mr-1"
+      @click.stop="$emit('remove', tag.id)"
+    />
+  </UBadge>
+</template>
+
+<script setup lang="ts">
+interface Tag {
+  id: string
+  name: string
+  color: string
+  icon?: string
+  category: string
+}
+
+const props = withDefaults(defineProps<{
+  tag: Tag
+  removable?: boolean
+  size?: 'sm' | 'md' | 'lg'
+}>(), {
+  removable: false,
+  size: 'md'
+})
+
+defineEmits<{
+  remove: [tagId: string]
+}>()
+
+const badgeStyle = computed(() => ({
+  backgroundColor: props.tag.color,
+  color: getContrastColor(props.tag.color)
+}))
+
+const badgeClasses = computed(() => ({
+  'cursor-pointer': props.removable,
+  'text-xs px-2 py-1': props.size === 'sm',
+  'text-sm px-2.5 py-1': props.size === 'md',
+  'text-base px-3 py-1.5': props.size === 'lg'
+}))
+
+// Calculate contrast color for text (black or white)
+function getContrastColor(hexColor: string): string {
+  // Remove # if present
+  const hex = hexColor.replace('#', '')
+  
+  // Convert to RGB
+  const r = parseInt(hex.slice(0, 2), 16)
+  const g = parseInt(hex.slice(2, 4), 16)
+  const b = parseInt(hex.slice(4, 6), 16)
+  
+  // Calculate luminance
+  const luminance = (0.299 * r + 0.587 * g + 0.114 * b) / 255
+  
+  // Return white for dark colors, black for light colors
+  return luminance > 0.5 ? '#000000' : '#FFFFFF'
+}
+</script>

app/components/tags/TagFilter.vue

@@ -0,0 +1,127 @@
+<template>
+  <div class="space-y-3">
+    <div class="flex items-center justify-between">
+      <h4 class="text-sm font-semibold text-gray-700">Filter by Tags</h4>
+      <UButton
+        v-if="selectedTagIds.length > 0"
+        size="xs"
+        color="gray"
+        variant="ghost"
+        @click="clearFilters"
+      >
+        Clear
+      </UButton>
+    </div>
+
+    <!-- Selected Tags (active filters) -->
+    <div v-if="selectedTagIds.length > 0" class="flex flex-wrap gap-1">
+      <TagsTagBadge
+        v-for="tagId in selectedTagIds"
+        :key="tagId"
+        :tag="findTag(tagId)!"
+        size="sm"
+        removable
+        @remove="toggleTag"
+      />
+    </div>
+
+    <!-- Available Tags by Category -->
+    <div v-for="category in tagsByCategory" :key="category.name" class="space-y-2">
+      <p class="text-xs font-medium text-gray-500 uppercase">{{ category.name }}</p>
+      <div class="flex flex-wrap gap-1">
+        <UButton
+          v-for="tag in category.tags"
+          :key="tag.id"
+          size="xs"
+          :color="isSelected(tag.id) ? 'primary' : 'gray'"
+          :variant="isSelected(tag.id) ? 'solid' : 'soft'"
+          @click="toggleTag(tag.id)"
+        >
+          <span v-if="tag.icon">{{ tag.icon }}</span>
+          <span class="ml-1">{{ tag.name }}</span>
+        </UButton>
+      </div>
+    </div>
+
+    <!-- Loading State -->
+    <div v-if="loading" class="text-center py-4">
+      <div class="inline-block animate-spin rounded-full h-4 w-4 border-b-2 border-primary-500"></div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+interface Tag {
+  id: string
+  name: string
+  color: string
+  icon?: string
+  category: string
+}
+
+const props = defineProps<{
+  modelValue: string[]
+}>()
+
+const emit = defineEmits<{
+  'update:modelValue': [tagIds: string[]]
+}>()
+
+const { getTags } = useTags()
+
+const availableTags = ref<Tag[]>([])
+const loading = ref(true)
+
+// Load tags on mount
+onMounted(async () => {
+  const { data } = await getTags()
+  if (data) {
+    availableTags.value = data
+  }
+  loading.value = false
+})
+
+// Computed
+const selectedTagIds = computed(() => props.modelValue)
+
+const tagsByCategory = computed(() => {
+  const grouped: Record<string, Tag[]> = {}
+  
+  for (const tag of availableTags.value) {
+    if (!grouped[tag.category]) {
+      grouped[tag.category] = []
+    }
+    grouped[tag.category].push(tag)
+  }
+
+  return Object.entries(grouped).map(([name, tags]) => ({
+    name: name.charAt(0).toUpperCase() + name.slice(1),
+    tags: tags.sort((a, b) => a.name.localeCompare(b.name))
+  })).sort((a, b) => {
+    if (a.name === 'Position') return -1
+    if (b.name === 'Position') return 1
+    return a.name.localeCompare(b.name)
+  })
+})
+
+// Methods
+const isSelected = (tagId: string) => {
+  return selectedTagIds.value.includes(tagId)
+}
+
+const toggleTag = (tagId: string) => {
+  if (isSelected(tagId)) {
+    emit('update:modelValue', selectedTagIds.value.filter(id => id !== tagId))
+  } else {
+    emit('update:modelValue', [...selectedTagIds.value, tagId])
+  }
+}
+
+const clearFilters = () => {
+  emit('update:modelValue', [])
+}
+
+const findTag = (tagId: string) => {
+  return availableTags.value.find(t => t.id === tagId)
+}
+</script>

app/components/tags/TagManager.vue

@@ -0,0 +1,212 @@
+<template>
+  <div class="space-y-6">
+    <!-- Add New Tag Form -->
+    <UCard>
+      <template #header>
+        <h3 class="text-lg font-semibold">Create New Tag</h3>
+      </template>
+
+      <form @submit.prevent="handleCreate" class="space-y-4">
+        <div class="grid grid-cols-2 gap-3">
+          <UFormGroup label="Name" required>
+            <UInput 
+              v-model="newTag.name"
+              placeholder="e.g. Freezer, Vegan"
+              size="md"
+            />
+          </UFormGroup>
+
+          <UFormGroup label="Category" required>
+            <USelect
+              v-model="newTag.category"
+              :options="categoryOptions"
+              placeholder="Select category"
+              size="md"
+            />
+          </UFormGroup>
+        </div>
+
+        <div class="grid grid-cols-2 gap-3">
+          <UFormGroup label="Icon" hint="Single emoji">
+            <UInput 
+              v-model="newTag.icon"
+              placeholder="❄️"
+              maxlength="2"
+              size="md"
+            />
+          </UFormGroup>
+
+          <UFormGroup label="Color" required>
+            <div class="flex gap-2">
+              <UInput 
+                v-model="newTag.color"
+                type="color"
+                class="w-16"
+              />
+              <UInput 
+                v-model="newTag.color"
+                placeholder="#3B82F6"
+                class="flex-1"
+                size="md"
+              />
+            </div>
+          </UFormGroup>
+        </div>
+
+        <UButton 
+          type="submit"
+          color="primary"
+          :loading="creating"
+          :disabled="!isFormValid"
+        >
+          Create Tag
+        </UButton>
+      </form>
+    </UCard>
+
+    <!-- Existing Tags -->
+    <UCard>
+      <template #header>
+        <h3 class="text-lg font-semibold">Existing Tags</h3>
+      </template>
+
+      <div v-if="loading" class="text-center py-8">
+        <div class="inline-block animate-spin rounded-full h-8 w-8 border-b-2 border-primary-500"></div>
+        <p class="text-gray-600 mt-2">Loading tags...</p>
+      </div>
+
+      <div v-else-if="tagsByCategory.length === 0" class="text-center py-8">
+        <p class="text-gray-500">No tags yet. Create your first tag above!</p>
+      </div>
+
+      <div v-else class="space-y-4">
+        <div v-for="category in tagsByCategory" :key="category.name">
+          <h4 class="text-sm font-semibold text-gray-600 uppercase mb-2">
+            {{ category.name }}
+          </h4>
+          <div class="space-y-2">
+            <div
+              v-for="tag in category.tags"
+              :key="tag.id"
+              class="flex items-center justify-between p-3 bg-gray-50 rounded-lg hover:bg-gray-100"
+            >
+              <div class="flex items-center gap-3">
+                <TagsTagBadge :tag="tag" size="md" />
+                <span class="text-sm text-gray-500">{{ tag.color }}</span>
+              </div>
+              
+              <UButton
+                icon="i-heroicons-trash"
+                color="red"
+                variant="ghost"
+                size="sm"
+                @click="handleDelete(tag.id, tag.name)"
+              />
+            </div>
+          </div>
+        </div>
+      </div>
+    </UCard>
+  </div>
+</template>
+
+<script setup lang="ts">
+const { getTags, createTag, deleteTag } = useTags()
+
+const tags = ref<any[]>([])
+const loading = ref(true)
+const creating = ref(false)
+
+const newTag = reactive({
+  name: '',
+  category: '',
+  icon: '',
+  color: '#3B82F6'
+})
+
+const categoryOptions = [
+  { label: 'Position', value: 'position' },
+  { label: 'Type', value: 'type' },
+  { label: 'Custom', value: 'custom' }
+]
+
+// Load tags on mount
+const loadTags = async () => {
+  loading.value = true
+  const { data } = await getTags()
+  if (data) {
+    tags.value = data
+  }
+  loading.value = false
+}
+
+onMounted(loadTags)
+
+// Computed
+const tagsByCategory = computed(() => {
+  const grouped: Record<string, any[]> = {}
+  
+  for (const tag of tags.value) {
+    if (!grouped[tag.category]) {
+      grouped[tag.category] = []
+    }
+    grouped[tag.category].push(tag)
+  }
+
+  return Object.entries(grouped).map(([name, tags]) => ({
+    name: name.charAt(0).toUpperCase() + name.slice(1),
+    tags: tags.sort((a, b) => a.name.localeCompare(b.name))
+  })).sort((a, b) => {
+    if (a.name === 'Position') return -1
+    if (b.name === 'Position') return 1
+    return a.name.localeCompare(b.name)
+  })
+})
+
+const isFormValid = computed(() => {
+  return newTag.name.trim() && newTag.category && newTag.color
+})
+
+// Methods
+const handleCreate = async () => {
+  if (!isFormValid.value) return
+
+  creating.value = true
+
+  const { data, error } = await createTag({
+    name: newTag.name.trim(),
+    category: newTag.category,
+    icon: newTag.icon.trim() || null,
+    color: newTag.color
+  })
+
+  if (error) {
+    alert('Failed to create tag: ' + error.message)
+  } else {
+    // Reset form
+    newTag.name = ''
+    newTag.category = ''
+    newTag.icon = ''
+    newTag.color = '#3B82F6'
+
+    // Reload tags
+    await loadTags()
+  }
+
+  creating.value = false
+}
+
+const handleDelete = async (tagId: string, tagName: string) => {
+  if (!confirm(`Delete tag "${tagName}"? This will remove it from all items.`)) {
+    return
+  }
+
+  const { error } = await deleteTag(tagId)
+
+  if (error) {
+    alert('Failed to delete tag: ' + error.message)
+  } else {
+    await loadTags()
+  }
+}
+</script>

app/components/tags/TagPicker.vue

@@ -0,0 +1,125 @@
+<template>
+  <div class="space-y-4">
+    <!-- Selected Tags -->
+    <div v-if="selectedTags.length > 0" class="flex flex-wrap gap-2">
+      <TagsTagBadge
+        v-for="tag in selectedTags"
+        :key="tag.id"
+        :tag="tag"
+        :removable="true"
+        @remove="removeTag"
+      />
+    </div>
+
+    <!-- Empty State -->
+    <div v-else class="text-sm text-gray-500 italic">
+      No tags selected
+    </div>
+
+    <!-- Tag Selection by Category -->
+    <div v-for="category in tagsByCategory" :key="category.name" class="space-y-2">
+      <h4 class="text-xs font-semibold text-gray-500 uppercase tracking-wide">
+        {{ category.name }}
+      </h4>
+      <div class="flex flex-wrap gap-2">
+        <UButton
+          v-for="tag in category.tags"
+          :key="tag.id"
+          size="sm"
+          :color="isSelected(tag.id) ? 'primary' : 'gray'"
+          :variant="isSelected(tag.id) ? 'solid' : 'outline'"
+          @click="toggleTag(tag)"
+        >
+          <span v-if="tag.icon" class="mr-1">{{ tag.icon }}</span>
+          {{ tag.name }}
+        </UButton>
+      </div>
+    </div>
+
+    <!-- Loading State -->
+    <div v-if="loading" class="text-center py-4">
+      <div class="inline-block animate-spin rounded-full h-6 w-6 border-b-2 border-primary-500"></div>
+      <p class="text-sm text-gray-500 mt-2">Loading tags...</p>
+    </div>
+
+    <!-- Empty State (no tags available) -->
+    <div v-if="!loading && availableTags.length === 0" class="text-center py-4">
+      <p class="text-gray-500">No tags available</p>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+interface Tag {
+  id: string
+  name: string
+  color: string
+  icon?: string
+  category: string
+}
+
+const props = defineProps<{
+  modelValue: Tag[]
+}>()
+
+const emit = defineEmits<{
+  'update:modelValue': [tags: Tag[]]
+}>()
+
+const { getTags } = useTags()
+
+const availableTags = ref<Tag[]>([])
+const loading = ref(true)
+
+// Load tags on mount
+onMounted(async () => {
+  const { data, error } = await getTags()
+  if (data) {
+    availableTags.value = data
+  }
+  loading.value = false
+})
+
+// Computed
+const selectedTags = computed(() => props.modelValue)
+
+const tagsByCategory = computed(() => {
+  const grouped: Record<string, Tag[]> = {}
+  
+  for (const tag of availableTags.value) {
+    if (!grouped[tag.category]) {
+      grouped[tag.category] = []
+    }
+    grouped[tag.category].push(tag)
+  }
+
+  return Object.entries(grouped).map(([name, tags]) => ({
+    name: name.charAt(0).toUpperCase() + name.slice(1),
+    tags: tags.sort((a, b) => a.name.localeCompare(b.name))
+  })).sort((a, b) => {
+    // Position category first, then others alphabetically
+    if (a.name === 'Position') return -1
+    if (b.name === 'Position') return 1
+    return a.name.localeCompare(b.name)
+  })
+})
+
+// Methods
+const isSelected = (tagId: string) => {
+  return selectedTags.value.some(t => t.id === tagId)
+}
+
+const toggleTag = (tag: Tag) => {
+  const isCurrentlySelected = isSelected(tag.id)
+  
+  if (isCurrentlySelected) {
+    removeTag(tag.id)
+  } else {
+    emit('update:modelValue', [...selectedTags.value, tag])
+  }
+}
+
+const removeTag = (tagId: string) => {
+  emit('update:modelValue', selectedTags.value.filter(t => t.id !== tagId))
+}
+</script>

app/composables/useInventory.ts

@@ -0,0 +1,201 @@
+import type { Database } from '~/types/database.types'
+
+type InventoryItem = Database['public']['Tables']['inventory_items']['Row']
+type InventoryItemInsert = Database['public']['Tables']['inventory_items']['Insert']
+type InventoryItemUpdate = Database['public']['Tables']['inventory_items']['Update']
+
+export const useInventory = () => {
+  const supabase = useSupabase()
+  const { user } = useSupabaseAuth()
+
+  /**
+   * Get all inventory items with denormalized data
+   */
+  const getInventory = async () => {
+    const { data, error } = await supabase
+      .from('inventory_items')
+      .select(`
+        *,
+        product:products(*),
+        unit:units(*),
+        tags:item_tags(tag:tags(*))
+      `)
+      .order('created_at', { ascending: false })
+
+    if (error) {
+      console.error('Error fetching inventory:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Get single inventory item by ID
+   */
+  const getInventoryItem = async (id: string) => {
+    const { data, error } = await supabase
+      .from('inventory_items')
+      .select(`
+        *,
+        product:products(*),
+        unit:units(*),
+        tags:item_tags(tag:tags(*))
+      `)
+      .eq('id', id)
+      .single()
+
+    if (error) {
+      console.error('Error fetching item:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Add new inventory item
+   */
+  const addInventoryItem = async (item: Omit<InventoryItemInsert, 'added_by'>) => {
+    if (!user.value) {
+      return { data: null, error: { message: 'User not authenticated' } }
+    }
+
+    const { data, error } = await supabase
+      .from('inventory_items')
+      .insert({
+        ...item,
+        added_by: user.value.id
+      })
+      .select(`
+        *,
+        product:products(*),
+        unit:units(*),
+        tags:item_tags(tag:tags(*))
+      `)
+      .single()
+
+    if (error) {
+      console.error('Error adding item:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Update inventory item
+   */
+  const updateInventoryItem = async (id: string, updates: InventoryItemUpdate) => {
+    const { data, error } = await supabase
+      .from('inventory_items')
+      .update(updates)
+      .eq('id', id)
+      .select(`
+        *,
+        product:products(*),
+        unit:units(*),
+        tags:item_tags(tag:tags(*))
+      `)
+      .single()
+
+    if (error) {
+      console.error('Error updating item:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Delete inventory item
+   */
+  const deleteInventoryItem = async (id: string) => {
+    // First delete associated tags
+    await supabase
+      .from('item_tags')
+      .delete()
+      .eq('item_id', id)
+
+    const { error } = await supabase
+      .from('inventory_items')
+      .delete()
+      .eq('id', id)
+
+    if (error) {
+      console.error('Error deleting item:', error)
+      return { error }
+    }
+
+    return { error: null }
+  }
+
+  /**
+   * Update item quantity (consume or restock)
+   */
+  const updateQuantity = async (id: string, change: number) => {
+    const { data: item, error: fetchError } = await getInventoryItem(id)
+    if (fetchError || !item) {
+      return { data: null, error: fetchError }
+    }
+
+    const newQuantity = Number(item.quantity) + change
+
+    if (newQuantity <= 0) {
+      // Auto-delete when quantity reaches zero
+      return await deleteInventoryItem(id)
+    }
+
+    return await updateInventoryItem(id, { quantity: newQuantity })
+  }
+
+  /**
+   * Add tags to item
+   */
+  const addItemTags = async (itemId: string, tagIds: string[]) => {
+    const items = tagIds.map(tagId => ({
+      item_id: itemId,
+      tag_id: tagId
+    }))
+
+    const { error } = await supabase
+      .from('item_tags')
+      .insert(items)
+
+    if (error) {
+      console.error('Error adding tags:', error)
+      return { error }
+    }
+
+    return { error: null }
+  }
+
+  /**
+   * Remove tag from item
+   */
+  const removeItemTag = async (itemId: string, tagId: string) => {
+    const { error } = await supabase
+      .from('item_tags')
+      .delete()
+      .eq('item_id', itemId)
+      .eq('tag_id', tagId)
+
+    if (error) {
+      console.error('Error removing tag:', error)
+      return { error }
+    }
+
+    return { error: null }
+  }
+
+  return {
+    getInventory,
+    getInventoryItem,
+    addInventoryItem,
+    updateInventoryItem,
+    deleteInventoryItem,
+    updateQuantity,
+    addItemTags,
+    removeItemTag
+  }
+}

app/composables/useProductLookup.ts

@@ -0,0 +1,61 @@
+// Composable for product lookup via Edge Function
+
+export interface ProductData {
+  barcode: string
+  name: string
+  brand?: string
+  quantity?: string
+  image_url?: string
+  category?: string
+  cached?: boolean
+}
+
+export const useProductLookup = () => {
+  const supabase = useSupabaseClient()
+  const isLoading = ref(false)
+  const error = ref<string | null>(null)
+
+  const lookupProduct = async (barcode: string): Promise<ProductData | null> => {
+    isLoading.value = true
+    error.value = null
+
+    try {
+      const { data, error: functionError } = await supabase.functions.invoke('product-lookup', {
+        body: { barcode }
+      })
+
+      if (functionError) {
+        console.error('Product lookup error:', functionError)
+        error.value = functionError.message || 'Failed to lookup product'
+        
+        // Return basic product data even on error
+        return {
+          barcode,
+          name: `Product ${barcode}`,
+          cached: false
+        }
+      }
+
+      return data as ProductData
+
+    } catch (err) {
+      console.error('Unexpected error during product lookup:', err)
+      error.value = err instanceof Error ? err.message : 'Unknown error'
+      
+      // Return basic product data even on error
+      return {
+        barcode,
+        name: `Product ${barcode}`,
+        cached: false
+      }
+    } finally {
+      isLoading.value = false
+    }
+  }
+
+  return {
+    lookupProduct,
+    isLoading: readonly(isLoading),
+    error: readonly(error)
+  }
+}

app/composables/useTags.ts

@@ -0,0 +1,86 @@
+export const useTags = () => {
+  const supabase = useSupabase()
+
+  /**
+   * Get all tags
+   */
+  const getTags = async () => {
+    const { data, error } = await supabase
+      .from('tags')
+      .select('*')
+      .order('category', { ascending: true })
+      .order('name', { ascending: true })
+
+    if (error) {
+      console.error('Error fetching tags:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Get tags by category
+   */
+  const getTagsByCategory = async (category: 'position' | 'type' | 'dietary' | 'custom') => {
+    const { data, error } = await supabase
+      .from('tags')
+      .select('*')
+      .eq('category', category)
+      .order('name', { ascending: true })
+
+    if (error) {
+      console.error('Error fetching tags by category:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Create a new tag
+   */
+  const createTag = async (tag: {
+    name: string
+    category: string
+    icon?: string | null
+    color: string
+  }) => {
+    const { data, error } = await supabase
+      .from('tags')
+      .insert(tag)
+      .select()
+      .single()
+
+    if (error) {
+      console.error('Error creating tag:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Delete a tag
+   */
+  const deleteTag = async (tagId: string) => {
+    const { error } = await supabase
+      .from('tags')
+      .delete()
+      .eq('id', tagId)
+
+    if (error) {
+      console.error('Error deleting tag:', error)
+      return { error }
+    }
+
+    return { error: null }
+  }
+
+  return {
+    getTags,
+    getTagsByCategory,
+    createTag,
+    deleteTag
+  }
+}

app/composables/useUnits.ts

@@ -0,0 +1,53 @@
+export const useUnits = () => {
+  const supabase = useSupabase()
+
+  /**
+   * Get all units
+   */
+  const getUnits = async () => {
+    const { data, error } = await supabase
+      .from('units')
+      .select('*')
+      .order('unit_type', { ascending: true })
+      .order('name', { ascending: true })
+
+    if (error) {
+      console.error('Error fetching units:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Get default unit for a type
+   */
+  const getDefaultUnit = async (unitType: 'weight' | 'volume' | 'count' | 'custom') => {
+    const { data, error } = await supabase
+      .from('units')
+      .select('*')
+      .eq('unit_type', unitType)
+      .eq('is_default', true)
+      .single()
+
+    if (error) {
+      console.error('Error fetching default unit:', error)
+      return { data: null, error }
+    }
+
+    return { data, error: null }
+  }
+
+  /**
+   * Convert quantity between units
+   */
+  const convertUnit = (quantity: number, fromFactor: number, toFactor: number): number => {
+    return (quantity * fromFactor) / toFactor
+  }
+
+  return {
+    getUnits,
+    getDefaultUnit,
+    convertUnit
+  }
+}

app/package.json

@@ -13,6 +13,7 @@
     "@nuxt/fonts": "^0.13.0",
     "@nuxt/ui": "^4.4.0",
     "@supabase/supabase-js": "^2.95.3",
+    "html5-qrcode": "^2.3.8",
     "nuxt": "^4.3.1",
     "vue": "^3.5.28",
     "vue-router": "^4.6.4"

app/pages/index.vue

@@ -17,36 +17,53 @@
           color="white" 
           size="lg"
           icon="i-heroicons-plus"
+          @click="showAddForm = true"
         >
           Add Manually
         </UButton>
+
+        <UButton
+          color="gray"
+          size="lg"
+          icon="i-heroicons-funnel"
+          @click="showFilters = !showFilters"
+        >
+          Filter
+        </UButton>
       </div>
     </div>
 
-    <!-- Empty State -->
+    <!-- Tag Filters -->
-    <UCard v-if="true">
+    <UCard v-if="showFilters" class="mb-6">
-      <div class="text-center py-12">
+      <TagsTagFilter v-model="selectedTagFilters" />
-        <UIcon 
-          name="i-heroicons-inbox" 
-          class="w-16 h-16 text-gray-400 mx-auto mb-4"
-        />
-        <h3 class="text-lg font-semibold text-gray-900 mb-2">
-          No items yet
-        </h3>
-        <p class="text-gray-600 mb-6">
-          Start by scanning a barcode or adding an item manually.
-        </p>
-        <UButton 
-          to="/scan" 
-          color="primary"
-          icon="i-heroicons-qr-code"
-        >
-          Scan First Item
-        </UButton>
-      </div>
     </UCard>
 
-    <!-- TODO: Item list will go here -->
+    <!-- Add Item Form (Overlay) -->
+    <div v-if="showAddForm" class="fixed inset-0 z-50 flex items-start justify-center pt-20 px-4 bg-black/50">
+      <div class="w-full max-w-lg">
+        <AddItemForm 
+          :initial-data="prefilledData"
+          @close="handleCloseAddForm"
+          @added="handleItemAdded"
+        />
+      </div>
+    </div>
+
+    <!-- Edit Item Modal -->
+    <EditItemModal 
+      :item="editingItem"
+      @close="editingItem = null"
+      @updated="handleItemUpdated"
+    />
+
+    <!-- Inventory List -->
+    <InventoryList
+      ref="inventoryListRef"
+      :refresh="refreshKey"
+      :tag-filters="selectedTagFilters"
+      @add-item="showAddForm = true"
+      @edit-item="editingItem = $event"
+    />
   </div>
 </template>
 
@@ -54,4 +71,51 @@
 definePageMeta({
   layout: 'default'
 })
+
+const route = useRoute()
+const router = useRouter()
+
+const showAddForm = ref(false)
+const showFilters = ref(false)
+const editingItem = ref<any>(null)
+const refreshKey = ref(0)
+const inventoryListRef = ref()
+const prefilledData = ref<any>(null)
+const selectedTagFilters = ref<string[]>([])
+
+// Handle scan-to-add flow (Issue #25)
+onMounted(() => {
+  if (route.query.action === 'add') {
+    // Pre-fill data from query params (from scan)
+    prefilledData.value = {
+      barcode: route.query.barcode as string || undefined,
+      name: route.query.name as string || undefined,
+      brand: route.query.brand as string || undefined,
+      image_url: route.query.image_url as string || undefined,
+      quantity: route.query.quantity as string || undefined,
+    }
+    
+    showAddForm.value = true
+    
+    // Clean up URL
+    router.replace({ query: {} })
+  }
+})
+
+const handleCloseAddForm = () => {
+  showAddForm.value = false
+  prefilledData.value = null
+}
+
+const handleItemAdded = (item: any) => {
+  showAddForm.value = false
+  prefilledData.value = null
+  // Reload the inventory list
+  inventoryListRef.value?.reload()
+}
+
+const handleItemUpdated = (item: any) => {
+  editingItem.value = null
+  inventoryListRef.value?.reload()
+}
 </script>

app/pages/scan.vue

@@ -2,25 +2,64 @@
   <div>
     <h1 class="text-3xl font-bold text-gray-900 mb-6">Scan Item</h1>
     
-    <UCard>
+    <UCard v-if="!scannedBarcode" class="mb-6">
-      <div class="text-center py-12">
+      <ScanBarcodeScanner 
-        <UIcon 
+        @barcode-detected="handleBarcodeDetected"
-          name="i-heroicons-qr-code" 
+        @manual-entry="showManualEntry = true"
-          class="w-16 h-16 text-gray-400 mx-auto mb-4"
+      />
+    </UCard>
+
+    <!-- Product Lookup Result -->
+    <UCard v-if="productData" class="mb-6">
+      <div class="space-y-4">
+        <div class="flex items-start gap-4">
+          <img 
+            v-if="productData.image_url" 
+            :src="productData.image_url" 
+            :alt="productData.name"
+            class="w-24 h-24 object-cover rounded"
+          />
+          <div class="flex-1">
+            <h3 class="text-xl font-bold mb-1">{{ productData.name }}</h3>
+            <p v-if="productData.brand" class="text-gray-600">{{ productData.brand }}</p>
+            <p class="text-sm text-gray-500 mt-2">Barcode: {{ scannedBarcode }}</p>
+          </div>
+        </div>
+
+        <UAlert 
+          v-if="lookupError"
+          color="yellow" 
+          icon="i-heroicons-exclamation-triangle"
+          title="Product not found"
+          :description="lookupError"
         />
-        <h3 class="text-lg font-semibold text-gray-900 mb-2">
+
-          Barcode Scanner
+        <div class="flex gap-2">
-        </h3>
+          <UButton 
-        <p class="text-gray-600 mb-6">
+            color="primary" 
-          This feature will be implemented in Week 3.
+            size="lg"
-        </p>
+            icon="i-heroicons-plus"
-        <UButton 
+            class="flex-1"
-          to="/" 
+            @click="addToInventory"
-          color="gray"
+          >
-          variant="soft"
+            Add to Inventory
-        >
+          </UButton>
-          Back to Inventory
+          <UButton 
-        </UButton>
+            color="gray" 
+            size="lg"
+            @click="resetScanner"
+          >
+            Scan Again
+          </UButton>
+        </div>
+      </div>
+    </UCard>
+
+    <!-- Loading State -->
+    <UCard v-if="isLookingUp">
+      <div class="text-center py-8">
+        <div class="inline-block animate-spin rounded-full h-12 w-12 border-b-2 border-primary-500 mb-4"></div>
+        <p class="text-gray-600">Looking up product...</p>
       </div>
     </UCard>
   </div>
@@ -30,4 +69,44 @@
 definePageMeta({
   layout: 'default'
 })
+
+const scannedBarcode = ref<string | null>(null)
+const productData = ref<any>(null)
+const showManualEntry = ref(false)
+
+// Use product lookup composable
+const { lookupProduct, isLoading: isLookingUp, error: lookupError } = useProductLookup()
+
+const handleBarcodeDetected = async (barcode: string) => {
+  scannedBarcode.value = barcode
+  
+  // Fetch product data from Edge Function
+  const data = await lookupProduct(barcode)
+  
+  if (data) {
+    productData.value = data
+  }
+}
+
+const addToInventory = () => {
+  // Navigate to home page with add form open and pre-filled
+  navigateTo({
+    path: '/',
+    query: {
+      action: 'add',
+      barcode: scannedBarcode.value,
+      name: productData.value?.name || undefined,
+      brand: productData.value?.brand || undefined,
+      image_url: productData.value?.image_url || undefined,
+      quantity: productData.value?.quantity || undefined
+    }
+  })
+}
+
+const resetScanner = () => {
+  scannedBarcode.value = null
+  productData.value = null
+  lookupError.value = null
+  isLookingUp.value = false
+}
 </script>

app/pages/settings.vue

@@ -2,73 +2,65 @@
   <div>
     <h1 class="text-3xl font-bold text-gray-900 mb-6">Settings</h1>
     
-    <div class="grid gap-6 md:grid-cols-2">
+    <UTabs :items="tabs" v-model="activeTab">
-      <UCard>
+      <template #account>
-        <template #header>
+        <UCard class="mt-4">
-          <h3 class="text-lg font-semibold">Account</h3>
+          <div class="space-y-4">
-        </template>
+            <h3 class="text-lg font-semibold">Account Settings</h3>
-        
+            <p class="text-gray-600">Account management will be implemented in future updates.</p>
-        <div class="space-y-4">
-          <div v-if="user">
-            <label class="text-sm font-medium text-gray-700">Email</label>
-            <p class="text-gray-900">{{ user.email }}</p>
           </div>
+        </UCard>
+      </template>
 
-          <UButton 
+      <template #tags>
-            v-if="!user"
+        <div class="mt-4">
-            to="/auth/login"
+          <TagsTagManager />
-            color="primary"
-          >
-            Sign In
-          </UButton>
         </div>
-      </UCard>
+      </template>
 
-      <UCard>
+      <template #about>
-        <template #header>
+        <UCard class="mt-4">
-          <h3 class="text-lg font-semibold">Tags</h3>
+          <div class="space-y-4">
-        </template>
+            <h3 class="text-lg font-semibold">About Pantry</h3>
-        
+            <p class="text-gray-600">Version 0.1.0 (MVP)</p>
-        <p class="text-gray-600">
+            <p class="text-gray-600">Self-hosted pantry management app with barcode scanning.</p>
-          Manage your custom tags here (coming in Week 2).
+            <UButton 
-        </p>
+              to="https://github.com/pantry-app/pantry"
-      </UCard>
+              target="_blank"
-
+              color="gray"
-      <UCard>
+              variant="soft"
-        <template #header>
+            >
-          <h3 class="text-lg font-semibold">Units</h3>
+              View on GitHub
-        </template>
+            </UButton>
-        
+          </div>
-        <p class="text-gray-600">
+        </UCard>
-          Manage your custom units here (coming in Week 2).
+      </template>
-        </p>
+    </UTabs>
-      </UCard>
-
-      <UCard>
-        <template #header>
-          <h3 class="text-lg font-semibold">About</h3>
-        </template>
-        
-        <div class="space-y-2 text-sm text-gray-600">
-          <p><strong>Pantry</strong> v0.1.0-alpha</p>
-          <p>Self-hosted inventory management</p>
-          <a 
-            href="https://github.com/pantry-app/pantry" 
-            target="_blank"
-            class="text-primary hover:underline"
-          >
-            View on GitHub →
-          </a>
-        </div>
-      </UCard>
-    </div>
   </div>
 </template>
 
 <script setup lang="ts">
-const { user } = useSupabaseAuth()
-
 definePageMeta({
   layout: 'default'
 })
+
+const activeTab = ref('tags')
+
+const tabs = [
+  {
+    key: 'tags',
+    label: 'Tags',
+    icon: 'i-heroicons-tag'
+  },
+  {
+    key: 'account',
+    label: 'Account',
+    icon: 'i-heroicons-user'
+  },
+  {
+    key: 'about',
+    label: 'About',
+    icon: 'i-heroicons-information-circle'
+  }
+]
 </script>

dev.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+set -e
+
+echo "🚀 Pantry - Starting Local Development Environment"
+echo ""
+
+# Check prerequisites
+command -v docker >/dev/null 2>&1 || { echo "❌ Docker not found. Install: https://docs.docker.com/get-docker/"; exit 1; }
+command -v docker-compose >/dev/null 2>&1 || { echo "❌ Docker Compose not found. Install: https://docs.docker.com/compose/install/"; exit 1; }
+command -v bun >/dev/null 2>&1 || { echo "❌ Bun not found. Install: curl -fsSL https://bun.sh/install | bash"; exit 1; }
+
+echo "✅ Prerequisites OK"
+echo ""
+
+# Step 1: Start Supabase
+echo "📦 Starting Supabase services..."
+docker-compose up -d
+
+echo "⏳ Waiting for services to initialize (15s)..."
+sleep 15
+
+echo "✅ Supabase started:"
+echo "   - API: http://localhost:54321"
+echo "   - Studio: http://localhost:54323"
+echo ""
+
+# Step 2: Install frontend dependencies
+echo "📦 Installing frontend dependencies..."
+cd app
+bun install
+
+echo "✅ Dependencies installed"
+echo ""
+
+# Step 3: Start dev server
+echo "🚀 Starting Nuxt dev server..."
+echo "   App will be available at: http://localhost:3000"
+echo ""
+echo "Press Ctrl+C to stop"
+echo ""
+
+bun run dev

docker-compose.yml

@@ -0,0 +1,127 @@
+version: '3.8'
+
+services:
+  # PostgreSQL Database
+  db:
+    image: supabase/postgres:15.1.0.147
+    restart: unless-stopped
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
+      POSTGRES_DB: postgres
+    volumes:
+      - db-data:/var/lib/postgresql/data
+      - ./supabase/migrations:/docker-entrypoint-initdb.d:ro
+
+  # Supabase Studio (Admin UI)
+  studio:
+    image: supabase/studio:20231123-64a766a
+    restart: unless-stopped
+    ports:
+      - "54323:3000"
+    environment:
+      SUPABASE_URL: http://kong:8000
+      SUPABASE_PUBLIC_URL: http://localhost:54321
+      SUPABASE_ANON_KEY: ${ANON_KEY}
+      SUPABASE_SERVICE_KEY: ${SERVICE_ROLE_KEY}
+
+  # Kong API Gateway
+  kong:
+    image: kong:2.8.1
+    restart: unless-stopped
+    ports:
+      - "54321:8000"
+      - "54320:8443"
+    environment:
+      KONG_DATABASE: "off"
+      KONG_DECLARATIVE_CONFIG: /var/lib/kong/kong.yml
+      KONG_DNS_ORDER: LAST,A,CNAME
+      KONG_PLUGINS: request-transformer,cors,key-auth,acl
+    volumes:
+      - ./docker/kong.yml:/var/lib/kong/kong.yml:ro
+
+  # GoTrue (Auth)
+  auth:
+    image: supabase/gotrue:v2.99.0
+    restart: unless-stopped
+    depends_on:
+      - db
+    environment:
+      GOTRUE_API_HOST: 0.0.0.0
+      GOTRUE_API_PORT: 9999
+      API_EXTERNAL_URL: http://localhost:54321
+      GOTRUE_DB_DRIVER: postgres
+      GOTRUE_DB_DATABASE_URL: postgres://supabase_auth_admin:${POSTGRES_PASSWORD:-postgres}@db:5432/postgres
+      GOTRUE_SITE_URL: http://localhost:3000
+      GOTRUE_URI_ALLOW_LIST: "*"
+      GOTRUE_DISABLE_SIGNUP: false
+      GOTRUE_JWT_ADMIN_ROLES: service_role
+      GOTRUE_JWT_AUD: authenticated
+      GOTRUE_JWT_DEFAULT_GROUP_NAME: authenticated
+      GOTRUE_JWT_EXP: 3600
+      GOTRUE_JWT_SECRET: ${JWT_SECRET}
+      GOTRUE_EXTERNAL_EMAIL_ENABLED: true
+      GOTRUE_MAILER_AUTOCONFIRM: true
+
+  # PostgREST (Auto API)
+  rest:
+    image: postgrest/postgrest:v11.2.0
+    restart: unless-stopped
+    depends_on:
+      - db
+    environment:
+      PGRST_DB_URI: postgres://authenticator:${POSTGRES_PASSWORD:-postgres}@db:5432/postgres
+      PGRST_DB_SCHEMAS: public,storage
+      PGRST_DB_ANON_ROLE: anon
+      PGRST_JWT_SECRET: ${JWT_SECRET}
+      PGRST_DB_USE_LEGACY_GUCS: "false"
+
+  # Realtime
+  realtime:
+    image: supabase/realtime:v2.25.35
+    restart: unless-stopped
+    depends_on:
+      - db
+    environment:
+      PORT: 4000
+      DB_HOST: db
+      DB_PORT: 5432
+      DB_USER: supabase_admin
+      DB_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
+      DB_NAME: postgres
+      DB_AFTER_CONNECT_QUERY: 'SET search_path TO _realtime'
+      DB_ENC_KEY: supabaserealtime
+      API_JWT_SECRET: ${JWT_SECRET}
+      FLY_ALLOC_ID: fly123
+      FLY_APP_NAME: realtime
+      SECRET_KEY_BASE: ${JWT_SECRET}
+      ERL_AFLAGS: -proto_dist inet_tcp
+      ENABLE_TAILSCALE: "false"
+      DNS_NODES: "''"
+
+  # Storage (S3-compatible)
+  storage:
+    image: supabase/storage-api:v0.40.4
+    restart: unless-stopped
+    depends_on:
+      - db
+      - rest
+    environment:
+      ANON_KEY: ${ANON_KEY}
+      SERVICE_KEY: ${SERVICE_ROLE_KEY}
+      POSTGREST_URL: http://rest:3000
+      PGRST_JWT_SECRET: ${JWT_SECRET}
+      DATABASE_URL: postgres://supabase_storage_admin:${POSTGRES_PASSWORD:-postgres}@db:5432/postgres
+      FILE_SIZE_LIMIT: 52428800
+      STORAGE_BACKEND: file
+      FILE_STORAGE_BACKEND_PATH: /var/lib/storage
+      TENANT_ID: stub
+      REGION: stub
+      GLOBAL_S3_BUCKET: stub
+    volumes:
+      - storage-data:/var/lib/storage
+
+volumes:
+  db-data:
+  storage-data:

docker/kong.yml

@@ -0,0 +1,85 @@
+_format_version: "2.1"
+
+_transform: true
+
+services:
+  - name: auth
+    url: http://auth:9999
+    routes:
+      - name: auth-v1
+        strip_path: true
+        paths:
+          - /auth/v1
+    plugins:
+      - name: cors
+      - name: key-auth
+        config:
+          hide_credentials: true
+
+  - name: rest
+    url: http://rest:3000
+    routes:
+      - name: rest-v1
+        strip_path: true
+        paths:
+          - /rest/v1
+    plugins:
+      - name: cors
+      - name: key-auth
+        config:
+          hide_credentials: true
+
+  - name: realtime
+    url: http://realtime:4000/socket
+    routes:
+      - name: realtime-v1
+        strip_path: true
+        paths:
+          - /realtime/v1
+    plugins:
+      - name: cors
+      - name: key-auth
+        config:
+          hide_credentials: true
+
+  - name: storage
+    url: http://storage:5000
+    routes:
+      - name: storage-v1
+        strip_path: true
+        paths:
+          - /storage/v1
+    plugins:
+      - name: cors
+
+consumers:
+  - username: anon
+    keyauth_credentials:
+      - key: ${ANON_KEY}
+  - username: service_role
+    keyauth_credentials:
+      - key: ${SERVICE_ROLE_KEY}
+
+plugins:
+  - name: cors
+    config:
+      origins:
+        - "*"
+      methods:
+        - GET
+        - POST
+        - PUT
+        - PATCH
+        - DELETE
+        - OPTIONS
+      headers:
+        - Accept
+        - Accept-Encoding
+        - Authorization
+        - Content-Type
+        - Origin
+        - X-Client-Info
+      exposed_headers:
+        - X-Total-Count
+      credentials: true
+      max_age: 3600

docs/README.md

@@ -0,0 +1,84 @@
+# Pantry Documentation
+
+Complete documentation for the Pantry household inventory management system.
+
+## 📚 Documentation Structure
+
+### 🚀 Getting Started
+
+- **[Project Overview](PROJECT_PLAN.md)** - Vision, roadmap, and MVP phases
+- **[Local Setup Guide](development/local-setup.md)** - Docker Compose development environment
+- **[Getting Started](development/getting-started.md)** - Quick start for new developers
+
+### 🏗️ Architecture
+
+- **[Architecture Overview](architecture/overview.md)** - Tech stack, design decisions, data flow
+- **[Database Schema](architecture/database.md)** - Tables, relationships, RLS policies, migrations
+- **[API Reference](architecture/api.md)** - Supabase endpoints, Edge Functions, helpers
+
+### 💻 Development
+
+- **[Development Workflow](development/workflow.md)** - Daily workflow, conventions, best practices
+- **[Git Workflow](development/git-workflow.md)** - Branching strategy, PR process, reviews
+
+### 🚢 Deployment
+
+- **[Production Deployment](deployment/production.md)** - Docker, Coolify, environment setup
+- **[CI/CD Pipeline](deployment/ci-cd.md)** - Automated testing, builds, deployments
+
+---
+
+## 🎯 Quick Links by Role
+
+### New Developer
+1. [Local Setup Guide](development/local-setup.md) - Get running in 5 minutes
+2. [Architecture Overview](architecture/overview.md) - Understand the stack
+3. [Development Workflow](development/workflow.md) - Daily development process
+
+### Feature Implementation
+1. [Database Schema](architecture/database.md) - Table structure and queries
+2. [API Reference](architecture/api.md) - Available endpoints
+3. [Git Workflow](development/git-workflow.md) - Branch naming, PR checklist
+
+### Deployment & Operations
+1. [Production Deployment](deployment/production.md) - Deploy to production
+2. [CI/CD Pipeline](deployment/ci-cd.md) - Automated workflows
+
+---
+
+## 📊 Current Status
+
+**MVP Progress:** 14/34 issues complete (41.2%)
+
+- ✅ Week 1: Database + Frontend Foundation (6/6)
+- ✅ Week 2: Core Inventory Management (8/8)
+- 🔄 Week 3: Barcode Scanning (1/5)
+- ⏸️ Week 4-6: Tag UI, PWA, Deployment (20 remaining)
+
+See [PROJECT_PLAN.md](PROJECT_PLAN.md) for detailed roadmap.
+
+---
+
+## 🤝 Contributing
+
+For contribution guidelines, see [Development Workflow](development/workflow.md).
+
+Key points:
+- Feature branches off `develop`
+- PRs require review before merge
+- Follow conventional commits
+- Write tests for new features
+
+---
+
+## 🔗 External Resources
+
+- **Repository:** https://gitea.jeanlucmakiola.de/pantry-app/pantry
+- **Supabase Docs:** https://supabase.com/docs
+- **Nuxt 4 Docs:** https://nuxt.com
+- **Open Food Facts API:** https://wiki.openfoodfacts.org/API
+
+---
+
+**Last Updated:** 2026-02-09  
+**Version:** 0.1.0-alpha (MVP in progress)

docs/development/getting-started.md

@@ -0,0 +1,189 @@
+# Getting Started with Pantry Development
+
+Welcome! This guide will get you from zero to running Pantry locally in ~5 minutes.
+
+## 🎯 What You'll Build
+
+A self-hosted kitchen inventory app with:
+- Inventory management (add, edit, delete items)
+- Tag-based organization (Fridge, Freezer, Dairy, etc.)
+- Unit conversions (g, kg, L, cups)
+- Barcode scanning (coming soon)
+- PWA features (offline, installable)
+
+## ⚡ Quick Start
+
+### Prerequisites
+
+- **Docker** & **Docker Compose** - [Install](https://docs.docker.com/get-docker/)
+- **Bun** - [Install](https://bun.sh): `curl -fsSL https://bun.sh/install | bash`
+- **Git**
+
+### One-Command Setup
+
+```bash
+# Clone the repo
+git clone https://gitea.jeanlucmakiola.de/pantry-app/pantry.git
+cd pantry
+
+# Run the setup script
+./dev.sh
+```
+
+That's it! The script will:
+1. ✅ Start Supabase services (Docker Compose)
+2. ✅ Wait for services to initialize
+3. ✅ Install frontend dependencies
+4. ✅ Launch Nuxt dev server
+
+### Access the App
+
+| Service | URL | Purpose |
+|---------|-----|---------|
+| **App** | `http://localhost:3000` | Main frontend |
+| **Supabase Studio** | `http://localhost:54323` | Database admin UI |
+| **API** | `http://localhost:54321` | Backend API |
+
+## 🎮 Try It Out
+
+1. Open `http://localhost:3000`
+2. Click **"Add Manually"** to create your first item
+3. Fill in:
+   - Name: "Milk"
+   - Quantity: 1
+   - Unit: Liter
+   - Tags: Fridge, Dairy
+   - Expiry: Set a date
+4. Click **"Add Item"** and see it in the grid!
+
+### Explore Features
+
+- **Edit item:** Click "Edit" on any card
+- **Adjust quantity:** Use +/- buttons
+- **Delete item:** Click "Delete" (confirms first)
+- **View database:** Open Supabase Studio at `:54323`
+
+## 📁 Project Structure
+
+```
+pantry/
+├── app/                      # Nuxt 4 frontend
+│   ├── components/           # Vue components
+│   │   └── inventory/        # Inventory UI (List, Card, Forms)
+│   ├── composables/          # Data hooks (useInventory, useSupabase)
+│   ├── pages/                # Routes (index, scan, settings)
+│   └── types/                # TypeScript definitions
+├── supabase/
+│   └── migrations/           # Database schema (001-005)
+├── docker-compose.yml        # Supabase services
+├── docker/
+│   └── kong.yml              # API gateway config
+└── docs/                     # Documentation
+```
+
+## 🛠️ Common Tasks
+
+### View Logs
+
+```bash
+# All services
+docker-compose logs -f
+
+# Just the database
+docker-compose logs -f db
+```
+
+### Reset Database
+
+```bash
+# Stop and remove volumes (fresh start)
+docker-compose down -v
+
+# Restart (migrations auto-apply)
+docker-compose up -d
+```
+
+### Access Database Directly
+
+```bash
+# psql CLI
+docker-compose exec db psql -U postgres -d postgres
+
+# Or use Supabase Studio (GUI)
+open http://localhost:54323
+```
+
+### Stop Everything
+
+```bash
+# Stop services (keep data)
+docker-compose stop
+
+# Stop and remove everything
+docker-compose down -v
+```
+
+## 🔍 What's Included
+
+### Database (Pre-seeded)
+
+**30 Units:**
+- Weight: g, kg, mg, lb, oz
+- Volume: mL, L, cup, tbsp, tsp
+- Count: piece, dozen, bottle, can, jar
+
+**33 Tags:**
+- Position: Fridge, Freezer, Pantry
+- Type: Dairy, Meat, Vegetables, Fruits
+- Dietary: Vegan, Gluten-Free, Organic
+- Custom: Low Stock, To Buy, Meal Prep
+
+### Features (Working Now)
+
+- ✅ Add/Edit/Delete inventory items
+- ✅ Tag selection (multi-select)
+- ✅ Unit conversions
+- ✅ Expiry date tracking with warnings
+- ✅ Responsive layout (mobile-ready)
+- ✅ Quantity quick actions (+/- buttons)
+
+### Features (Coming Soon)
+
+- ⏳ Barcode scanning (Week 3)
+- ⏳ User authentication UI
+- ⏳ Tag management
+- ⏳ PWA (offline mode)
+
+## 📚 Next Steps
+
+### Learn the Stack
+
+1. **[Architecture Overview](../architecture/overview.md)** - Tech stack and design decisions
+2. **[Database Schema](../architecture/database.md)** - Tables and relationships
+3. **[Development Workflow](workflow.md)** - Daily development process
+
+### Make Your First Change
+
+1. Pick an issue from Gitea
+2. Create a branch: `git checkout -b feature/your-feature`
+3. Make changes, test locally
+4. Commit: `git commit -m "feat: your feature"`
+5. Push and create PR
+
+### Troubleshooting
+
+See **[Local Setup Guide](local-setup.md)** for:
+- Port conflicts
+- Database connection issues
+- Frontend errors
+- Environment variables
+
+## 🤝 Need Help?
+
+- **Documentation:** Browse `/docs` folder
+- **Issues:** Create an issue on Gitea
+- **Local setup:** See [local-setup.md](local-setup.md)
+
+---
+
+**Ready to code?** Check out the [Development Workflow](workflow.md)!

docs/development/local-setup.md

@@ -0,0 +1,335 @@
+# Pantry - Local Development Setup
+
+Self-hosted household pantry management app with barcode scanning.
+
+## 🚀 Quick Start
+
+### Prerequisites
+
+- **Docker** & **Docker Compose** (for Supabase backend)
+- **Bun** (for Nuxt frontend) - Install: `curl -fsSL https://bun.sh/install | bash`
+- **Git**
+
+### 1. Clone & Setup
+
+```bash
+git clone https://gitea.jeanlucmakiola.de/pantry-app/pantry.git
+cd pantry
+```
+
+### 2. Start Supabase (Backend)
+
+```bash
+# Start all Supabase services
+docker-compose up -d
+
+# Wait ~10 seconds for services to initialize
+# Check status
+docker-compose ps
+```
+
+**Services running:**
+- PostgreSQL: `localhost:5432`
+- Supabase API: `http://localhost:54321`
+- Supabase Studio: `http://localhost:54323` (admin UI)
+
+### 3. Apply Database Migrations
+
+The migrations are automatically applied on first startup via `/docker-entrypoint-initdb.d`.
+
+To verify:
+```bash
+docker-compose exec db psql -U postgres -d postgres -c "\dt"
+```
+
+You should see: `inventory_items`, `products`, `tags`, `units`, `item_tags`
+
+### 4. Start Nuxt App (Frontend)
+
+```bash
+cd app
+bun install
+bun run dev
+```
+
+**App running:** `http://localhost:3000`
+
+### 5. Open & Test
+
+1. Visit `http://localhost:3000`
+2. Click "Add Manually" to create your first inventory item
+3. Access Supabase Studio at `http://localhost:54323` to view database
+
+---
+
+## 📁 Project Structure
+
+```
+pantry/
+├── app/                    # Nuxt 4 frontend
+│   ├── components/         # Vue components
+│   │   └── inventory/      # Inventory CRUD UI
+│   ├── composables/        # Supabase client, data hooks
+│   ├── pages/              # Routes (index, scan, settings)
+│   └── types/              # TypeScript definitions
+├── supabase/
+│   └── migrations/         # SQL schema & seed data
+├── docker/
+│   └── kong.yml            # API gateway config
+├── docker-compose.yml      # Supabase services
+└── .env                    # Environment variables
+```
+
+---
+
+## 🔧 Common Tasks
+
+### View Logs
+
+```bash
+# All services
+docker-compose logs -f
+
+# Specific service
+docker-compose logs -f db
+docker-compose logs -f auth
+```
+
+### Reset Database
+
+```bash
+# Stop services
+docker-compose down -v
+
+# Restart (migrations auto-apply)
+docker-compose up -d
+```
+
+### Access Database
+
+```bash
+# psql
+docker-compose exec db psql -U postgres -d postgres
+
+# Supabase Studio (GUI)
+# http://localhost:54323
+```
+
+### Run Migrations Manually
+
+```bash
+# If you add new migrations after initial setup
+docker-compose exec db psql -U postgres -d postgres -f /docker-entrypoint-initdb.d/003_helper_functions.sql
+```
+
+### Create Test User
+
+```bash
+# Via Supabase Studio: http://localhost:54323
+# → Authentication → Add User
+# Email: test@example.com
+# Password: password123
+
+# Or via curl:
+curl http://localhost:54321/auth/v1/signup \
+  -H "apikey: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..." \
+  -H "Content-Type: application/json" \
+  -d '{"email":"test@example.com","password":"password123"}'
+```
+
+---
+
+## 🧪 Testing Features
+
+### 1. Inventory Management
+- Add items manually via form
+- Edit quantities with +/- buttons
+- Delete items
+- View expiry warnings
+
+### 2. Tags & Organization
+- Pre-seeded tags: Fridge, Freezer, Pantry, Dairy, Vegan, etc.
+- Multi-select tags when adding items
+- Color-coded badges
+
+### 3. Units
+- 30 pre-seeded units (g, kg, L, cups, pieces, etc.)
+- Automatic conversion support
+
+### 4. Barcode Scanning (Week 3 - In Progress)
+- Camera access (requires HTTPS in production)
+- Manual barcode entry fallback
+
+---
+
+## 🐛 Troubleshooting
+
+### Port Conflicts
+
+If ports 5432, 54321, or 3000 are in use:
+
+```bash
+# Check what's using the port
+sudo lsof -i :5432
+
+# Option 1: Stop conflicting service
+# Option 2: Change port in docker-compose.yml
+```
+
+### Database Connection Refused
+
+```bash
+# Wait for PostgreSQL to fully start
+docker-compose logs db | grep "ready to accept connections"
+
+# If stuck, restart
+docker-compose restart db
+```
+
+### Migrations Not Applied
+
+```bash
+# Verify migrations directory is mounted
+docker-compose exec db ls -la /docker-entrypoint-initdb.d
+
+# Manually apply
+docker-compose exec db bash
+cd /docker-entrypoint-initdb.d
+for f in *.sql; do psql -U postgres -d postgres -f "$f"; done
+```
+
+### Frontend: Module Not Found
+
+```bash
+cd app
+rm -rf node_modules bun.lock .nuxt
+bun install
+bun run dev
+```
+
+---
+
+## 📊 Database Schema
+
+### Tables
+
+| Table | Purpose | Rows (Est.) |
+|-------|---------|-------------|
+| `inventory_items` | Current inventory | 100-500 |
+| `products` | Barcode cache (Open Food Facts) | 500-2000 |
+| `tags` | Organization labels | 50 (33 pre-seeded) |
+| `units` | Measurement units | 50 (30 pre-seeded) |
+| `item_tags` | Many-to-many item ↔ tag | 200-1000 |
+
+### Pre-Seeded Data
+
+**Units (30):**
+- Weight: g, kg, mg, lb, oz
+- Volume: mL, L, cup, tbsp, tsp, gal, qt, pt
+- Count: piece, dozen, package, bottle, can, jar, box, bag
+
+**Tags (33):**
+- Position: Fridge, Freezer, Pantry, Cabinet
+- Type: Dairy, Meat, Vegetables, Fruits, Snacks
+- Dietary: Vegan, Gluten-Free, Organic, Kosher, Halal
+- Custom: Low Stock, To Buy, Meal Prep, Leftovers
+
+---
+
+## 🔐 Authentication
+
+**Default Setup (Development):**
+- Auto-confirm emails (no SMTP needed)
+- Anyone can sign up
+- JWT tokens valid for 1 hour
+
+**Create Admin User:**
+
+```sql
+-- Via psql
+docker-compose exec db psql -U postgres -d postgres
+
+INSERT INTO auth.users (id, email, encrypted_password, email_confirmed_at)
+VALUES (
+  gen_random_uuid(),
+  'admin@pantry.local',
+  crypt('admin123', gen_salt('bf')),
+  NOW()
+);
+```
+
+---
+
+## 🌐 Environment Variables
+
+**.env** (root)
+```bash
+POSTGRES_PASSWORD=postgres
+JWT_SECRET=your-secret-here
+ANON_KEY=<supabase-anon-key>
+SERVICE_ROLE_KEY=<supabase-service-role-key>
+```
+
+**app/.env** (Nuxt)
+```bash
+NUXT_PUBLIC_SUPABASE_URL=http://localhost:54321
+NUXT_PUBLIC_SUPABASE_ANON_KEY=<same-as-above>
+```
+
+---
+
+## 📈 Development Workflow
+
+1. **Make changes** to Nuxt app → Hot reload at `localhost:3000`
+2. **Database changes** → Create new migration in `supabase/migrations/`
+3. **Test** → Add items, scan barcodes, check database
+4. **Commit** → Feature branch → PR to `develop`
+
+---
+
+## 🚢 Production Deployment (Coming Soon)
+
+See `docs/DEPLOYMENT.md` for:
+- Coolify setup
+- Environment configuration
+- SSL/HTTPS setup
+- Backups
+
+---
+
+## 📚 Documentation
+
+- [Architecture](docs/ARCHITECTURE.md)
+- [Database Schema](docs/DATABASE.md)
+- [API Reference](docs/API.md)
+- [Development Guide](docs/DEVELOPMENT.md)
+
+---
+
+## 🤝 Contributing
+
+This is a personal project, but issues and PRs welcome!
+
+1. Fork the repo
+2. Create feature branch (`git checkout -b feature/amazing-feature`)
+3. Commit changes (`git commit -m 'Add amazing feature'`)
+4. Push to branch (`git push origin feature/amazing-feature`)
+5. Open Pull Request
+
+---
+
+## 📝 License
+
+MIT License - See LICENSE file
+
+---
+
+## 🙋 Support
+
+- Issues: https://gitea.jeanlucmakiola.de/pantry-app/pantry/issues
+- Docs: https://gitea.jeanlucmakiola.de/pantry-app/pantry/wiki
+
+---
+
+**Version:** 0.1.0-alpha (MVP in progress)  
+**Status:** Week 2 complete, Week 3 in progress (14/34 issues done)

supabase/functions/product-lookup/README.md

@@ -0,0 +1,83 @@
+# Product Lookup Edge Function
+
+Fetches product data from Open Food Facts API by barcode and caches results in the database.
+
+## Endpoint
+
+`POST /functions/v1/product-lookup`
+
+## Request
+
+```json
+{
+  "barcode": "8000500310427"
+}
+```
+
+## Response
+
+### Success (200)
+
+```json
+{
+  "barcode": "8000500310427",
+  "name": "Nutella",
+  "brand": "Ferrero",
+  "quantity": "750g",
+  "image_url": "https://...",
+  "category": "spreads",
+  "cached": false
+}
+```
+
+### Not Found (404)
+
+```json
+{
+  "barcode": "1234567890123",
+  "name": "Unknown Product (1234567890123)",
+  "cached": false
+}
+```
+
+### Error (500)
+
+```json
+{
+  "error": "Error message",
+  "barcode": null,
+  "name": null
+}
+```
+
+## Features
+
+- ✅ Queries Open Food Facts API
+- ✅ Caches results in `products` table
+- ✅ Returns cached data for subsequent requests
+- ✅ Handles product not found gracefully
+- ✅ CORS enabled for frontend access
+
+## Environment Variables
+
+- `SUPABASE_URL`: Auto-injected by Supabase
+- `SUPABASE_SERVICE_ROLE_KEY`: Auto-injected by Supabase
+
+## Testing
+
+```bash
+# Local (with Supabase CLI)
+supabase functions serve product-lookup
+
+# Test request
+curl -X POST http://localhost:54321/functions/v1/product-lookup \
+  -H "Content-Type: application/json" \
+  -H "Authorization: Bearer YOUR_ANON_KEY" \
+  -d '{"barcode":"8000500310427"}'
+```
+
+## Deployment
+
+```bash
+supabase functions deploy product-lookup
+```

supabase/functions/product-lookup/index.ts

@@ -0,0 +1,140 @@
+// Product Lookup Edge Function
+// Fetches product data from Open Food Facts API by barcode
+
+import { serve } from 'https://deno.land/std@0.168.0/http/server.ts'
+import { createClient } from 'https://esm.sh/@supabase/supabase-js@2'
+
+const corsHeaders = {
+  'Access-Control-Allow-Origin': '*',
+  'Access-Control-Allow-Headers': 'authorization, x-client-info, apikey, content-type',
+}
+
+interface ProductData {
+  barcode: string
+  name: string
+  brand?: string
+  quantity?: string
+  image_url?: string
+  category?: string
+  cached?: boolean
+}
+
+serve(async (req) => {
+  // Handle CORS preflight
+  if (req.method === 'OPTIONS') {
+    return new Response('ok', { headers: corsHeaders })
+  }
+
+  try {
+    const { barcode } = await req.json()
+
+    if (!barcode) {
+      throw new Error('Barcode is required')
+    }
+
+    // Initialize Supabase client
+    const supabaseUrl = Deno.env.get('SUPABASE_URL')!
+    const supabaseKey = Deno.env.get('SUPABASE_SERVICE_ROLE_KEY')!
+    const supabase = createClient(supabaseUrl, supabaseKey)
+
+    // Check cache first (products table can store known products)
+    const { data: cachedProduct } = await supabase
+      .from('products')
+      .select('*')
+      .eq('barcode', barcode)
+      .single()
+
+    if (cachedProduct) {
+      console.log(`Cache HIT for barcode: ${barcode}`)
+      return new Response(
+        JSON.stringify({
+          barcode: cachedProduct.barcode,
+          name: cachedProduct.name,
+          brand: cachedProduct.brand,
+          quantity: cachedProduct.quantity,
+          image_url: cachedProduct.image_url,
+          category: cachedProduct.category,
+          cached: true,
+        } as ProductData),
+        { headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+      )
+    }
+
+    console.log(`Cache MISS for barcode: ${barcode}, fetching from Open Food Facts...`)
+
+    // Fetch from Open Food Facts
+    const offResponse = await fetch(
+      `https://world.openfoodfacts.org/api/v2/product/${barcode}.json`,
+      {
+        headers: {
+          'User-Agent': 'Pantry/1.0 (https://github.com/pantry-app/pantry)',
+        },
+      }
+    )
+
+    if (!offResponse.ok) {
+      throw new Error(`Open Food Facts API error: ${offResponse.status}`)
+    }
+
+    const offData = await offResponse.json()
+
+    if (offData.status !== 1 || !offData.product) {
+      // Product not found in Open Food Facts
+      return new Response(
+        JSON.stringify({
+          barcode,
+          name: `Unknown Product (${barcode})`,
+          cached: false,
+        } as ProductData),
+        { 
+          headers: { ...corsHeaders, 'Content-Type': 'application/json' },
+          status: 404
+        }
+      )
+    }
+
+    const product = offData.product
+
+    // Extract relevant data
+    const productData: ProductData = {
+      barcode,
+      name: product.product_name || product.generic_name || `Product ${barcode}`,
+      brand: product.brands || undefined,
+      quantity: product.quantity || undefined,
+      image_url: product.image_url || product.image_front_url || undefined,
+      category: product.categories || undefined,
+      cached: false,
+    }
+
+    // Cache the product in our database (upsert)
+    await supabase.from('products').upsert({
+      barcode: productData.barcode,
+      name: productData.name,
+      brand: productData.brand,
+      quantity: productData.quantity,
+      image_url: productData.image_url,
+      category: productData.category,
+    }, { onConflict: 'barcode' })
+
+    console.log(`Successfully fetched and cached product: ${productData.name}`)
+
+    return new Response(
+      JSON.stringify(productData),
+      { headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+    )
+
+  } catch (error) {
+    console.error('Error in product-lookup:', error)
+    return new Response(
+      JSON.stringify({ 
+        error: error instanceof Error ? error.message : 'Unknown error',
+        barcode: null,
+        name: null,
+      }),
+      { 
+        headers: { ...corsHeaders, 'Content-Type': 'application/json' },
+        status: 500
+      }
+    )
+  }
+})