docs(03-01): complete image infrastructure plan

Tasks completed: 3/3
- Database schema and repository for images
- File storage and thumbnail generation utilities
- API endpoints for serving images

SUMMARY: .planning/phases/03-images/03-01-SUMMARY.md

.planning/STATE.md

@@ -5,23 +5,23 @@
 See: .planning/PROJECT.md (updated 2026-01-29)
 
 **Core value:** Capture and find anything from any device — especially laptop. If cross-device capture with images doesn't work, nothing else matters.
-**Current focus:** Phase 2 - Core CRUD
+**Current focus:** Phase 3 - Images
 
 ## Current Position
 
-Phase: 2 of 6 (Core CRUD)
-Plan: 4 of 4 in current phase
-Status: Phase complete
-Last activity: 2026-01-29 — Completed 02-04-PLAN.md
+Phase: 3 of 6 (Images)
+Plan: 1 of 3 in current phase
+Status: In progress
+Last activity: 2026-01-29 — Completed 03-01-PLAN.md
 
-Progress: [██████░░░░] 50%
+Progress: [███████░░░] 58%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 6
-- Average duration: 3.5 min
-- Total execution time: 22 min
+- Total plans completed: 7
+- Average duration: 3.4 min
+- Total execution time: 26 min
 
 **By Phase:**
 
@@ -29,9 +29,10 @@ Progress: [██████░░░░] 50%
 |-------|-------|-------|----------|
 | 01-foundation | 2 | 7 min | 3.5 min |
 | 02-core-crud | 4 | 15 min | 3.75 min |
+| 03-images | 1 | 4 min | 4 min |
 
 **Recent Trend:**
-- Last 5 plans: 01-02 (3 min), 02-01 (3 min), 02-02 (4 min), 02-03 (3 min), 02-04 (5 min)
+- Last 5 plans: 02-01 (3 min), 02-02 (4 min), 02-03 (3 min), 02-04 (5 min), 03-01 (4 min)
 - Trend: Stable
 
 *Updated after each plan completion*
@@ -57,6 +58,9 @@ Recent decisions affecting current work:
 - URL params synced with localStorage for showCompleted filter (02-03)
 - Native touch handlers for swipe-to-delete gesture (02-04)
 - invalidateAll() for seamless list updates after mutations (02-04)
+- Thumbnails always JPEG regardless of original format (03-01)
+- EXIF rotation via sharp.rotate() before resize (03-01)
+- Immutable cache headers for images (03-01)
 
 ### Pending Todos
 
@@ -69,9 +73,9 @@ None yet.
 ## Session Continuity
 
 Last session: 2026-01-29
-Stopped at: Completed 02-04-PLAN.md (Phase 2 complete)
+Stopped at: Completed 03-01-PLAN.md
 Resume file: None
 
 ---
 *State initialized: 2026-01-29*
-*Last updated: 2026-01-29 after 02-04 completion*
+*Last updated: 2026-01-29 after 03-01 completion*