docs(02-03): complete inline editing plan

Tasks completed: 2/2
- Add expand/collapse and inline editing to EntryCard
- Create CompletedToggle component and wire up showCompleted

SUMMARY: .planning/phases/02-core-crud/02-03-SUMMARY.md

.planning/STATE.md

@@ -10,28 +10,28 @@ See: .planning/PROJECT.md (updated 2026-01-29)
 ## Current Position
 
 Phase: 2 of 6 (Core CRUD)
-Plan: 2 of 4 in current phase
+Plan: 3 of 4 in current phase
 Status: In progress
-Last activity: 2026-01-29 — Completed 02-02-PLAN.md
+Last activity: 2026-01-29 — Completed 02-03-PLAN.md
 
-Progress: [████░░░░░░] 33%
+Progress: [█████░░░░░] 42%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 4
+- Total plans completed: 5
-- Average duration: 3.5 min
+- Average duration: 3.4 min
-- Total execution time: 14 min
+- Total execution time: 17 min
 
 **By Phase:**
 
 | Phase | Plans | Total | Avg/Plan |
 |-------|-------|-------|----------|
 | 01-foundation | 2 | 7 min | 3.5 min |
-| 02-core-crud | 2 | 7 min | 3.5 min |
+| 02-core-crud | 3 | 10 min | 3.3 min |
 
 **Recent Trend:**
-- Last 5 plans: 01-01 (4 min), 01-02 (3 min), 02-01 (3 min), 02-02 (4 min)
+- Last 5 plans: 01-01 (4 min), 01-02 (3 min), 02-01 (3 min), 02-02 (4 min), 02-03 (3 min)
 - Trend: Stable
 
 *Updated after each plan completion*
@@ -53,6 +53,8 @@ Recent decisions affecting current work:
 - Form action validation with fail() pattern for error handling (02-01)
 - svelte-persisted-store for localStorage persistence (02-02)
 - Type indicator: checkbox for tasks, purple T badge for thoughts (02-02)
+- Debounced auto-save via fetch to form actions (02-03)
+- URL params synced with localStorage for showCompleted filter (02-03)
 
 ### Pending Todos
 
@@ -65,9 +67,9 @@ None yet.
 ## Session Continuity
 
 Last session: 2026-01-29
-Stopped at: Completed 02-02-PLAN.md
+Stopped at: Completed 02-03-PLAN.md
 Resume file: None
 
 ---
 *State initialized: 2026-01-29*
-*Last updated: 2026-01-29 after 02-02 completion*
+*Last updated: 2026-01-29 after 02-03 completion*

.planning/phases/02-core-crud/02-03-SUMMARY.md

@@ -0,0 +1,117 @@
+---
+phase: 02-core-crud
+plan: 03
+subsystem: ui
+tags: [svelte, inline-editing, debounce, auto-save, expand-collapse]
+
+# Dependency graph
+requires:
+  - phase: 02-core-crud/02
+    provides: EntryCard component, preferences store, form actions
+provides:
+  - Expandable EntryCard with inline editing
+  - Debounced auto-save on edit
+  - CompletedToggle to show/hide completed tasks
+  - Type change after entry creation
+affects: [02-04, search, mobile-ux]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - Debounced auto-save via fetch to form actions
+    - Expand/collapse with Svelte slide transition
+    - URL params synced with localStorage preferences
+
+key-files:
+  created:
+    - src/lib/components/CompletedToggle.svelte
+  modified:
+    - src/lib/components/EntryCard.svelte
+    - src/routes/+page.svelte
+    - src/routes/+page.server.ts
+
+key-decisions:
+  - "Use fetch to ?/update instead of form submit for seamless auto-save"
+  - "Sync showCompleted via URL params for server-side filtering"
+
+patterns-established:
+  - "Debounced auto-save: 400ms delay, fetch to form action, isSaving indicator"
+  - "Expand/collapse: slide transition with rotate chevron icon"
+
+# Metrics
+duration: 3min
+completed: 2026-01-29
+---
+
+# Phase 02 Plan 03: Inline Editing Summary
+
+**Expandable EntryCard with 400ms debounced auto-save and CompletedToggle for showing/hiding completed tasks**
+
+## Performance
+
+- **Duration:** 3 min
+- **Started:** 2026-01-29T10:10:33Z
+- **Completed:** 2026-01-29T10:13:19Z
+- **Tasks:** 2
+- **Files modified:** 4
+
+## Accomplishments
+- EntryCard expands on click to show inline editing fields
+- Changes auto-save with 400ms debounce showing "Saving..." indicator
+- Type can be changed after entry creation (task/thought)
+- CompletedToggle shows/hides completed tasks with persistence
+- Delete button with confirmation dialog in expanded view
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Add expand/collapse and inline editing to EntryCard** - `7d66a8f` (feat)
+2. **Task 2: Create CompletedToggle component and wire up showCompleted** - `fc7c1f6` (feat)
+
+## Files Created/Modified
+- `src/lib/components/EntryCard.svelte` - Expanded from 67 to 200 lines with expand/collapse state, inline editing fields, debounced auto-save
+- `src/lib/components/CompletedToggle.svelte` - New 42-line component for toggling completed tasks visibility
+- `src/routes/+page.svelte` - Added CompletedToggle to header, URL preference sync
+- `src/routes/+page.server.ts` - Load function accepts showCompleted URL param
+
+## Decisions Made
+- Used fetch to ?/update for auto-save instead of form submit (seamless UX, no page refresh)
+- Synced showCompleted preference with URL params for server-side filtering
+- Fixed button-in-button nesting issue by restructuring to div with role="button"
+- Added keyboard handler (Enter/Space) for accessibility on clickable div
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 1 - Bug] Fixed button-in-button HTML nesting**
+- **Found during:** Task 1 (EntryCard implementation)
+- **Issue:** Original plan had button wrapping the entire header including the checkbox form button, causing HTML validation error and hydration warnings
+- **Fix:** Restructured to use div with role="button" for clickable content area, keeping form button separate
+- **Files modified:** src/lib/components/EntryCard.svelte
+- **Verification:** svelte-check passes with no errors
+- **Committed in:** 7d66a8f (Task 1 commit)
+
+---
+
+**Total deviations:** 1 auto-fixed (1 bug)
+**Impact on plan:** Essential fix for HTML validity and SSR hydration. No scope creep.
+
+## Issues Encountered
+- Svelte 5 `page` from `$app/state` is not a store - fixed by accessing directly without $ prefix
+- Svelte warnings about state capturing initial values are intentional (edit state should capture, not track)
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Core CRUD operations fully functional
+- Ready for Plan 04 (drag-drop reordering if planned)
+- Requirements satisfied: CORE-02 (Edit), CORE-03 (Delete with confirmation), CORE-06 (Add notes)
+
+---
+*Phase: 02-core-crud*
+*Completed: 2026-01-29*