docs(04-02): complete pin/favorite and due date plan

Tasks completed: 2/2
- Add togglePin and updateDueDate form actions
- Add pin button, due date picker, and pinned section UI

SUMMARY: .planning/phases/04-tags/04-02-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 3 - Images (Complete)
+**Current focus:** Phase 4 - Tags & Organization (In progress)
 
 ## Current Position
 
-Phase: 3 of 6 (Images)
-Plan: 4 of 4 in current phase
-Status: Phase complete
-Last activity: 2026-01-31 — Completed 03-04-PLAN.md
+Phase: 4 of 6 (Tags & Organization)
+Plan: 2 of 3 in current phase
+Status: In progress
+Last activity: 2026-01-31 — Completed 04-02-PLAN.md
 
-Progress: [████████░░] 80%
+Progress: [████████░░] 85%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 10
-- Average duration: 3.5 min
-- Total execution time: 36 min
+- Total plans completed: 11
+- Average duration: 3.6 min
+- Total execution time: 44 min
 
 **By Phase:**
 
@@ -30,9 +30,10 @@ Progress: [████████░░] 80%
 | 01-foundation | 2 | 7 min | 3.5 min |
 | 02-core-crud | 4 | 15 min | 3.75 min |
 | 03-images | 4 | 14 min | 3.5 min |
+| 04-tags | 1 | 8 min | 8 min |
 
 **Recent Trend:**
-- Last 5 plans: 02-04 (5 min), 03-01 (4 min), 03-02 (2 min), 03-03 (2 min), 03-04 (8 min)
+- Last 5 plans: 03-01 (4 min), 03-02 (2 min), 03-03 (2 min), 03-04 (8 min), 04-02 (8 min)
 - Trend: Stable
 
 *Updated after each plan completion*
@@ -70,6 +71,9 @@ Recent decisions affecting current work:
 - Horizontal scroll gallery with 80x80 thumbnails (03-04)
 - File input with capture="environment" for mobile camera (03-04)
 - Edit mode toggle to reveal delete buttons (03-04)
+- Fetch/invalidateAll pattern for pin toggle actions (04-02)
+- Due date stored as ISO string from HTML5 date input (04-02)
+- Pinned section uses uppercase label for visual distinction (04-02)
 
 ### Pending Todos
 
@@ -82,9 +86,9 @@ None yet.
 ## Session Continuity
 
 Last session: 2026-01-31
-Stopped at: Completed 03-04-PLAN.md (Phase 3 complete)
+Stopped at: Completed 04-02-PLAN.md
 Resume file: None
 
 ---
 *State initialized: 2026-01-29*
-*Last updated: 2026-01-31 after 03-04 completion (all phase 03 plans complete)*
+*Last updated: 2026-01-31 after 04-02 completion*

.planning/phases/04-tags/04-02-SUMMARY.md

@@ -0,0 +1,101 @@
+---
+phase: 04-tags
+plan: 02
+subsystem: ui
+tags: [svelte, forms, pinned, due-date]
+
+# Dependency graph
+requires:
+  - phase: 01-foundation
+    provides: Entry schema with pinned and dueDate columns
+provides:
+  - togglePin form action for pin state management
+  - updateDueDate form action for due date management
+  - Pin button UI in EntryCard expanded view
+  - Due date picker UI in EntryCard expanded view
+  - Pinned entries section at top of EntryList
+affects: [04-tags-03, filtering, sorting]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - Async form handlers with fetch and invalidateAll
+    - Derived state for filtered entry lists
+
+key-files:
+  created: []
+  modified:
+    - src/routes/+page.server.ts
+    - src/lib/components/EntryCard.svelte
+    - src/lib/components/EntryList.svelte
+
+key-decisions:
+  - "Use fetch/invalidateAll pattern for pin toggle (consistent with existing patterns)"
+  - "Due date stored as ISO string from native HTML5 date input"
+  - "Pinned section header uses uppercase label style"
+
+patterns-established:
+  - "Toggle actions: fetch POST to action, then invalidateAll to refresh"
+  - "Separated entry lists: $derived filters for subsets"
+
+# Metrics
+duration: 8min
+completed: 2026-01-31
+---
+
+# Phase 4 Plan 2: Pin/Favorite and Due Date Features Summary
+
+**Pin toggle button and due date picker with dedicated pinned entries section at top of list**
+
+## Performance
+
+- **Duration:** 8 min
+- **Started:** 2026-01-31T12:50:00Z
+- **Completed:** 2026-01-31T12:58:00Z
+- **Tasks:** 2
+- **Files modified:** 3
+
+## Accomplishments
+- Users can pin/unpin entries with visual feedback (yellow pin icon)
+- Users can set/clear due dates using native date picker
+- Pinned entries automatically appear in labeled section at top of list
+- Pin indicator and due date visible in collapsed entry view
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Add togglePin and updateDueDate form actions** - `a232a95` (feat)
+2. **Task 2: Add pin button, due date picker, and pinned section UI** - `164fc73` (feat)
+
+## Files Created/Modified
+- `src/routes/+page.server.ts` - Added togglePin and updateDueDate form actions
+- `src/lib/components/EntryCard.svelte` - Pin button, due date picker, collapsed view indicators
+- `src/lib/components/EntryList.svelte` - Separated pinned/unpinned entries with dedicated sections
+
+## Decisions Made
+- Used fetch/invalidateAll pattern for pin toggle (consistent with existing update patterns)
+- Due date stored as ISO date string from HTML5 date input (matches schema design)
+- Pinned section uses uppercase "PINNED" header for visual distinction
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+None
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Pin and due date features complete and functional
+- Ready for Plan 03: Tag system implementation
+- Entries have all organizational metadata (pinned, dueDate) needed for filtering/sorting
+
+---
+*Phase: 04-tags*
+*Completed: 2026-01-31*