docs: start milestone v1.3 Research & Decision Tools

.planning/PROJECT.md

@@ -42,13 +42,17 @@ Make it effortless to manage gear and plan new purchases — see how a potential
 
 ### Active
 
-(No active milestone — use `/gsd:new-milestone` to start next)
+## Current Milestone: v1.3 Research & Decision Tools
+
+**Goal:** Give users the tools to actually decide between candidates — compare details side-by-side, see how a pick impacts their setup, and rank/annotate their options.
+
+**Target features:**
+- Full-detail side-by-side candidate comparison (weight, price, images, notes, links, status)
+- Impact preview: pick a setup, see +/- weight and cost delta for each candidate
+- Candidate ranking (drag-to-reorder) with pros/cons text fields per candidate
 
 ### Future
 
-- [ ] Side-by-side candidate comparison on weight and price
-- [ ] Candidate ranking/prioritization within threads
-- [ ] Impact preview: how a candidate affects setup weight/cost
 - [ ] CSV import/export for gear collections
 - [ ] Multi-user accounts with authentication
 - [ ] Collection sharing and social features (public profiles, shared setups)
@@ -65,7 +69,7 @@ Make it effortless to manage gear and plan new purchases — see how a potential
 
 ## Context
 
-Shipped v1.2 with 7,310 LOC TypeScript.
+Shipped v1.2 with 7,310 LOC TypeScript. Starting v1.3 to enhance thread decision workflow.
 Tech stack: React 19, Hono, Drizzle ORM, SQLite, TanStack Router/Query, Tailwind CSS v4, Lucide React, Recharts, all on Bun.
 Primary use case is bikepacking gear but data model is hobby-agnostic.
 Replaces spreadsheet-based gear tracking workflow.
@@ -112,4 +116,4 @@ Replaces spreadsheet-based gear tracking workflow.
 | Recharts for charting | Mature React chart library, composable API | ✓ Good |
 
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-*Last updated: 2026-03-16 after v1.2 milestone*
+*Last updated: 2026-03-16 after v1.3 milestone start*