docs(09-02): complete weight breakdown visualization plan

- Create 09-02-SUMMARY.md with execution results
- Update STATE.md with completion status and decisions
- Mark CLAS-02, VIZZ-01, VIZZ-02, VIZZ-03 requirements complete

.planning/REQUIREMENTS.md

@@ -24,15 +24,15 @@ Requirements for this milestone. Each maps to roadmap phases.
 ### Weight Classification
 
 - [x] **CLAS-01**: User can classify each item within a setup as base weight, worn, or consumable
-- [ ] **CLAS-02**: Setup totals display base weight, worn weight, consumable weight, and total separately
+- [x] **CLAS-02**: Setup totals display base weight, worn weight, consumable weight, and total separately
 - [x] **CLAS-03**: Items default to "base weight" classification when added to a setup
 - [x] **CLAS-04**: Same item can have different classifications in different setups
 
 ### Weight Visualization
 
-- [ ] **VIZZ-01**: User can view a donut chart showing weight distribution by category in a setup
+- [x] **VIZZ-01**: User can view a donut chart showing weight distribution by category in a setup
-- [ ] **VIZZ-02**: User can toggle chart between category view and classification view (base/worn/consumable)
+- [x] **VIZZ-02**: User can toggle chart between category view and classification view (base/worn/consumable)
-- [ ] **VIZZ-03**: User can hover chart segments to see category name, weight, and percentage
+- [x] **VIZZ-03**: User can hover chart segments to see category name, weight, and percentage
 
 ### Candidate Status
 
@@ -98,12 +98,12 @@ Which phases cover which requirements. Updated during roadmap creation.
 | UNIT-02 | Phase 7 | Complete |
 | UNIT-03 | Phase 7 | Complete |
 | CLAS-01 | Phase 9 | Complete |
-| CLAS-02 | Phase 9 | Pending |
+| CLAS-02 | Phase 9 | Complete |
 | CLAS-03 | Phase 9 | Complete |
 | CLAS-04 | Phase 9 | Complete |
-| VIZZ-01 | Phase 9 | Pending |
+| VIZZ-01 | Phase 9 | Complete |
-| VIZZ-02 | Phase 9 | Pending |
+| VIZZ-02 | Phase 9 | Complete |
-| VIZZ-03 | Phase 9 | Pending |
+| VIZZ-03 | Phase 9 | Complete |
 | CAND-01 | Phase 8 | Complete |
 | CAND-02 | Phase 8 | Complete |
 | CAND-03 | Phase 8 | Complete |

.planning/STATE.md

@@ -2,16 +2,16 @@
 gsd_state_version: 1.0
 milestone: v1.2
 milestone_name: Collection Power-Ups
-status: in-progress
+status: completed
-stopped_at: Completed 09-01-PLAN.md
+stopped_at: Completed 09-02-PLAN.md
-last_updated: "2026-03-16T14:13:32Z"
+last_updated: "2026-03-16T14:22:28.171Z"
-last_activity: 2026-03-16 -- Completed 09-01 classification schema and badge
+last_activity: 2026-03-16 -- Completed 09-02 weight breakdown visualization
 progress:
   total_phases: 3
-  completed_phases: 2
+  completed_phases: 3
   total_plans: 6
-  completed_plans: 5
+  completed_plans: 6
-  percent: 83
+  percent: 100
 ---
 
 # Project State
@@ -21,16 +21,16 @@ progress:
 See: .planning/PROJECT.md (updated 2026-03-16)
 
 **Core value:** Make it effortless to manage gear and plan new purchases -- see how a potential buy affects your total setup weight and cost before committing.
-**Current focus:** Phase 9 in progress -- weight classification and visualization
+**Current focus:** Milestone v1.2 complete -- all phases finished
 
 ## Current Position
 
 Phase: 9 of 9 (Weight Classification & Visualization)
-Plan: 1 of 2
+Plan: 2 of 2
-Status: In Progress
+Status: Complete
-Last activity: 2026-03-16 -- Completed 09-01 classification schema and badge
+Last activity: 2026-03-16 -- Completed 09-02 weight breakdown visualization
 
-Progress: [█████████░] 83%
+Progress: [██████████] 100%
 
 ## Accumulated Context
 
@@ -54,6 +54,7 @@ Progress: [█████████░] 83%
 - [Phase 09]: ClassificationBadge uses simple click-to-cycle (not popup) since only 3 values
 - [Phase 09]: Classification stored on setupItems join table so same item can differ across setups
 - [Phase 09]: syncSetupItems preserves classifications via Map before delete/restore after re-insert
+- [Phase 09]: Recharts v3 Cell component used for per-slice colors (still functional, deprecated for v4)
 
 ### Pending Todos
 
@@ -65,6 +66,6 @@ None active.
 
 ## Session Continuity
 
-Last session: 2026-03-16T14:13:32Z
+Last session: 2026-03-16T14:22:28.169Z
-Stopped at: Completed 09-01-PLAN.md
+Stopped at: Completed 09-02-PLAN.md
 Resume file: None

.planning/phases/09-weight-classification-and-visualization/09-02-SUMMARY.md

@@ -0,0 +1,107 @@
+---
+phase: 09-weight-classification-and-visualization
+plan: 02
+subsystem: ui
+tags: [react, recharts, donut-chart, tailwind, weight-visualization, pie-chart]
+
+# Dependency graph
+requires:
+  - phase: 09-weight-classification-and-visualization
+    provides: classification column on setupItems, getSetupWithItems returns classification field, SetupItemWithCategory type
+provides:
+  - WeightSummaryCard component with donut chart and classification subtotals
+  - Pill toggle for category/classification chart views
+  - Recharts integration (PieChart, Pie, Cell, Tooltip, Label, ResponsiveContainer)
+  - Custom tooltip with formatted weight and percentage display
+affects: []
+
+# Tech tracking
+tech-stack:
+  added: [recharts]
+  patterns: [donut chart with center label, pill toggle view switcher, chart data transformation from items array]
+
+key-files:
+  created:
+    - src/client/components/WeightSummaryCard.tsx
+  modified:
+    - src/client/routes/setups/$setupId.tsx
+    - package.json
+
+key-decisions:
+  - "Recharts v3 Cell component used for per-slice colors (still functional, deprecated for v4)"
+  - "Fixed numeric height on ResponsiveContainer (180px) to avoid zero-height rendering"
+  - "Zero-weight items filtered out before chart data to prevent invisible/NaN slices"
+
+patterns-established:
+  - "Donut chart: PieChart with Pie innerRadius/outerRadius and Label position=center for hole text"
+  - "Chart data transformation: group items by key, sum weights, compute percentages, filter zeroes"
+  - "Pill toggle view switcher: reusable pattern for switching between data breakdowns"
+
+requirements-completed: [CLAS-02, VIZZ-01, VIZZ-02, VIZZ-03]
+
+# Metrics
+duration: 2min
+completed: 2026-03-16
+---
+
+# Phase 9 Plan 2: Weight Breakdown Visualization Summary
+
+**Recharts donut chart with category/classification toggle, weight subtotals card, and hover tooltips inside setup detail page**
+
+## Performance
+
+- **Duration:** 2 min
+- **Started:** 2026-03-16T14:18:52Z
+- **Completed:** 2026-03-16T14:20:57Z
+- **Tasks:** 1 (+ 1 auto-approved checkpoint)
+- **Files modified:** 4
+
+## Accomplishments
+- Created WeightSummaryCard component with donut chart visualization using Recharts
+- Implemented pill toggle switching between category and classification chart views
+- Built weight subtotals display (Base | Worn | Consumable | Total) with colored indicator dots
+- Added custom tooltip showing segment name, formatted weight, and percentage on hover
+- Rendered total weight in center of donut hole using selected weight unit
+- Wired WeightSummaryCard into setup detail page below sticky bar (only when items exist)
+- Handled edge case of zero-weight items with placeholder message
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Install Recharts, create WeightSummaryCard, wire into setup detail page** - `d098277` (feat)
+
+## Files Created/Modified
+- `src/client/components/WeightSummaryCard.tsx` - New component with donut chart, pill toggle, subtotals, and custom tooltip
+- `src/client/routes/setups/$setupId.tsx` - Added WeightSummaryCard import and rendering inside itemCount > 0 block
+- `package.json` - Added recharts dependency
+- `bun.lock` - Updated lockfile with recharts and its dependencies
+
+## Decisions Made
+- Used Recharts v3 Cell component for per-slice colors (functional in v3, deprecated for v4 removal)
+- Fixed 180px height on ResponsiveContainer to prevent zero-height rendering issue
+- Filter zero-weight entries before passing to chart to avoid invisible/NaN segments
+- Default view mode is "category" (most useful initial view for gear analysis)
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+None
+
+## User Setup Required
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Phase 9 complete: classification badges + weight visualization both functional
+- All 121 tests pass, build succeeds, lint clean on modified files
+- Recharts available for any future chart features
+
+## Self-Check: PASSED
+
+All 3 files verified present. Task commit (d098277) confirmed in git history. recharts found in package.json. WeightSummaryCard found in $setupId.tsx.
+
+---
+*Phase: 09-weight-classification-and-visualization*
+*Completed: 2026-03-16*