docs(06-01): complete task history plan

- Create 06-01-SUMMARY.md with full execution documentation
- Update STATE.md: Phase 6 Plan 1 complete, decisions recorded
- Update ROADMAP.md: Phase 6 marked complete (1/1 plans)
- Mark HIST-01 and HIST-02 requirements complete

.planning/REQUIREMENTS.md

@@ -17,8 +17,8 @@ Requirements for milestone v1.1 Calendar & Polish. Each maps to roadmap phases.
 
 ### Task History
 
-- [ ] **HIST-01**: Each task completion is recorded with a timestamp
+- [x] **HIST-01**: Each task completion is recorded with a timestamp
-- [ ] **HIST-02**: User can view past completion dates for any individual task
+- [x] **HIST-02**: User can view past completion dates for any individual task
 
 ### Task Sorting
 
@@ -65,8 +65,8 @@ Which phases cover which requirements. Updated during roadmap creation.
 | CAL-03 | Phase 5 | Complete |
 | CAL-04 | Phase 5 | Complete |
 | CAL-05 | Phase 5 | Complete |
-| HIST-01 | Phase 6 | Pending |
+| HIST-01 | Phase 6 | Complete |
-| HIST-02 | Phase 6 | Pending |
+| HIST-02 | Phase 6 | Complete |
 | SORT-01 | Phase 7 | Pending |
 | SORT-02 | Phase 7 | Pending |
 | SORT-03 | Phase 7 | Pending |

.planning/ROADMAP.md

@@ -22,7 +22,7 @@ See `milestones/v1.0-ROADMAP.md` for full phase details.
 **v1.1 Calendar & Polish (Phases 5-7):**
 
 - [x] **Phase 5: Calendar Strip** - Replace the stacked daily plan home screen with a horizontal scrollable date-strip and day-task list (completed 2026-03-16)
-- [ ] **Phase 6: Task History** - Record every task completion with a timestamp and expose a per-task history view
+- [x] **Phase 6: Task History** - Record every task completion with a timestamp and expose a per-task history view (completed 2026-03-16)
 - [ ] **Phase 7: Task Sorting** - Add alphabetical, interval, and effort sort options to task lists
 
 ## Phase Details
@@ -50,7 +50,7 @@ Plans:
   1. Every task completion (tap done in any view) is recorded in the database with a precise timestamp — data persists across app restarts
   2. From a task's detail or context menu the user can open a history view listing all past completion dates for that task in reverse-chronological order
   3. The history view shows a meaningful empty state if the task has never been completed
-**Plans:** 1 plan
+**Plans:** 1/1 plans complete
 Plans:
 - [ ] 06-01-PLAN.md — DAO query + history bottom sheet + TaskFormScreen integration + CalendarTaskRow navigation
 
@@ -74,5 +74,5 @@ Plans:
 | 3. Daily Plan and Cleanliness | v1.0 | 3/3 | Complete | 2026-03-16 |
 | 4. Notifications | v1.0 | 3/3 | Complete | 2026-03-16 |
 | 5. Calendar Strip | 2/2 | Complete   | 2026-03-16 | - |
-| 6. Task History | v1.1 | 0/1 | Planned | - |
+| 6. Task History | 1/1 | Complete   | 2026-03-16 | - |
 | 7. Task Sorting | v1.1 | 0/? | Not started | - |

.planning/STATE.md

@@ -1,17 +1,17 @@
 ---
 gsd_state_version: 1.0
-milestone: v1.0
+milestone: v1.1
-milestone_name: milestone
+milestone_name: Calendar & Polish
-status: completed
+status: in-progress
-stopped_at: Phase 6 context gathered
+stopped_at: Completed Phase 6 Plan 01 (task history)
-last_updated: "2026-03-16T20:46:23.402Z"
+last_updated: "2026-03-16T20:57:30Z"
-last_activity: 2026-03-16 — Completed Phase 5 Plan 02 (calendar strip UI)
+last_activity: 2026-03-16 — Completed Phase 6 Plan 01 (task completion history)
 progress:
   total_phases: 3
-  completed_phases: 1
+  completed_phases: 2
-  total_plans: 2
+  total_plans: 3
-  completed_plans: 2
+  completed_plans: 3
-  percent: 100
+  percent: 33
 ---
 
 # Project State
@@ -21,17 +21,17 @@ progress:
 See: .planning/PROJECT.md (updated 2026-03-16)
 
 **Core value:** Users can see what needs doing today, mark it done, and trust the app to schedule the next occurrence — without thinking about it.
-**Current focus:** v1.1 Calendar & Polish — Phase 5: Calendar Strip
+**Current focus:** v1.1 Calendar & Polish — Phase 6: Task History
 
 ## Current Position
 
-Phase: 5 — Calendar Strip
+Phase: 6 — Task History
-Plan: 2/2 complete (Phase 5 done)
+Plan: 1/1 complete (Phase 6 done)
 Status: Phase Complete
-Last activity: 2026-03-16 — Completed Phase 5 Plan 02 (calendar strip UI)
+Last activity: 2026-03-16 — Completed Phase 6 Plan 01 (task completion history)
 
 ```
-Progress: [██████████] 100% (2/2 plans in Phase 5)
+Progress: [██████████] 100% (1/1 plans in Phase 6)
 ```
 
 ## Performance Metrics
@@ -44,6 +44,7 @@ Progress: [██████████] 100% (2/2 plans in Phase 5)
 | Tests | 89 | TBD |
 | Phase 05-calendar-strip P01 | 5 | 2 tasks | 10 files |
 | Phase 05-calendar-strip P02 | 8 | 3 tasks | 9 files |
+| Phase 06-task-history P01 | 5 | 2 tasks | 9 files |
 
 ## Accumulated Context
 
@@ -60,6 +61,8 @@ Progress: [██████████] 100% (2/2 plans in Phase 5)
 | watchTasksForDate sorts alphabetically by task name | Same-day tasks have no meaningful time-based order; alpha sort is deterministic and user-friendly |
 | CalendarStripController as VoidCallback holder | Avoids GlobalKey for single imperative scroll-to-today action — simpler |
 | Tests use pump()+pump(Duration) instead of pumpAndSettle() | CalendarStrip animation controllers cause pumpAndSettle timeout — fixed-duration pump steps are reliable |
+| No separate Riverpod provider for history sheet | ref.read(appDatabaseProvider) directly in ConsumerWidget — one-shot modals do not need a dedicated provider |
+| CalendarTaskRow onTap navigates to task edit form | Makes history accessible in one tap from home screen, consistent with GoRouter route patterns |
 
 ### Pending Todos
 
@@ -71,7 +74,7 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-03-16T20:46:23.400Z
+Last session: 2026-03-16T20:57:30Z
-Stopped at: Phase 6 context gathered
+Stopped at: Completed Phase 6 Plan 01 (task history)
-Resume file: .planning/phases/06-task-history/06-CONTEXT.md
+Resume file: .planning/phases/06-task-history/06-01-SUMMARY.md
-Next action: `/gsd:plan-phase 5`
+Next action: Phase 7 (task sorting) or release

.planning/phases/06-task-history/06-01-SUMMARY.md

@@ -0,0 +1,131 @@
+---
+phase: 06-task-history
+plan: 01
+subsystem: database, ui
+tags: [drift, flutter, riverpod, go_router, intl, bottom-sheet, stream]
+
+# Dependency graph
+requires:
+  - phase: 05-calendar-strip
+    provides: CalendarTaskRow widget and CalendarDayList that render tasks in the home screen
+provides:
+  - watchCompletionsForTask(taskId) DAO stream on TasksDao — sorted newest-first
+  - task_history_sheet.dart with showTaskHistorySheet() function
+  - Verlauf ListTile in TaskFormScreen (edit mode) opening history bottom sheet
+  - CalendarTaskRow onTap navigation to TaskFormScreen for the tapped task
+affects: [07-task-sorting, future-phases-using-TaskFormScreen]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - "Bottom sheet follows icon_picker_sheet pattern: showModalBottomSheet with isScrollControlled, ConsumerWidget inside, SafeArea > Padding > Column(mainAxisSize.min)"
+    - "StreamBuilder on DAO stream directly accessed via ref.read(appDatabaseProvider).tasksDao.methodName (no separate Riverpod provider for one-shot modals)"
+    - "TDD: RED test commit followed by GREEN implementation commit"
+
+key-files:
+  created:
+    - lib/features/tasks/presentation/task_history_sheet.dart
+    - test/features/tasks/data/task_history_dao_test.dart
+  modified:
+    - lib/features/tasks/data/tasks_dao.dart
+    - lib/features/tasks/data/tasks_dao.g.dart
+    - lib/features/tasks/presentation/task_form_screen.dart
+    - lib/features/home/presentation/calendar_task_row.dart
+    - lib/l10n/app_de.arb
+    - lib/l10n/app_localizations.dart
+    - lib/l10n/app_localizations_de.dart
+
+key-decisions:
+  - "No separate Riverpod provider for history sheet — ref.read(appDatabaseProvider) directly in ConsumerWidget keeps it simple for a one-shot modal"
+  - "CalendarTaskRow onTap routes to /rooms/:roomId/tasks/:taskId so history is always one tap away from the home screen"
+  - "Count summary line shown above list when completions > 0; not shown for empty state"
+
+patterns-established:
+  - "History sheet: showModalBottomSheet returning Future<void>, ConsumerWidget sheet with StreamBuilder on DAO stream"
+  - "Edit-mode-only ListTile pattern: if (widget.isEditing) [...] in TaskFormScreen ListView children"
+
+requirements-completed: [HIST-01, HIST-02]
+
+# Metrics
+duration: 5min
+completed: 2026-03-16
+---
+
+# Phase 6 Plan 1: Task History Summary
+
+**Drift DAO stream for task completion history, bottom sheet with reverse-chronological German-formatted dates, wired from CalendarTaskRow tap through TaskFormScreen Verlauf button**
+
+## Performance
+
+- **Duration:** 5 min
+- **Started:** 2026-03-16T20:52:49Z
+- **Completed:** 2026-03-16T20:57:19Z
+- **Tasks:** 2 (Task 1 TDD: RED + GREEN + localization; Task 2: sheet + wiring + navigation)
+- **Files modified:** 9
+
+## Accomplishments
+- `watchCompletionsForTask(int taskId)` added to TasksDao: returns `Stream<List<TaskCompletion>>` sorted by completedAt DESC
+- Task history bottom sheet (`task_history_sheet.dart`) with StreamBuilder, empty state, German date/time formatting via intl
+- Verlauf ListTile added to TaskFormScreen edit mode, opens history sheet on tap
+- CalendarTaskRow gains `onTap` that navigates via GoRouter to the task edit form, making history one tap away from the calendar
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **RED - Failing DAO tests** - `2687f5e` (test)
+2. **Task 1: DAO method, localization** - `ceae7d7` (feat)
+3. **Task 2: History sheet, form wiring, navigation** - `9f902ff` (feat)
+
+**Plan metadata:** (docs commit — see below)
+
+_Note: TDD tasks have separate RED (test) and GREEN (feat) commits_
+
+## Files Created/Modified
+- `lib/features/tasks/data/tasks_dao.dart` - Added watchCompletionsForTask stream method
+- `lib/features/tasks/data/tasks_dao.g.dart` - Regenerated by build_runner
+- `lib/features/tasks/presentation/task_history_sheet.dart` - New: bottom sheet with StreamBuilder, empty state, completion list
+- `lib/features/tasks/presentation/task_form_screen.dart` - Added Verlauf ListTile in edit mode
+- `lib/features/home/presentation/calendar_task_row.dart` - Added onTap navigation to task edit form
+- `lib/l10n/app_de.arb` - Added taskHistoryTitle, taskHistoryEmpty, taskHistoryCount strings
+- `lib/l10n/app_localizations.dart` - Regenerated (abstract class updated)
+- `lib/l10n/app_localizations_de.dart` - Regenerated (German implementation updated)
+- `test/features/tasks/data/task_history_dao_test.dart` - New: 5 tests covering empty state, single/multiple completions, task isolation, stream reactivity
+
+## Decisions Made
+- No separate Riverpod provider for history sheet: `ref.read(appDatabaseProvider).tasksDao.watchCompletionsForTask(taskId)` directly in the ConsumerWidget. One-shot modals do not need a dedicated provider.
+- CalendarTaskRow navigation uses `context.go('/rooms/.../tasks/...')` consistent with existing GoRouter route patterns.
+- Removed unused `import 'package:drift/drift.dart'` from test file (Rule 1 auto-fix during GREEN verification).
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 1 - Bug] Removed unused import from test file**
+- **Found during:** Task 1 (GREEN phase, flutter analyze)
+- **Issue:** `import 'package:drift/drift.dart'` was copied from the existing tasks_dao_test.dart pattern but not needed in the new history test file (no `Value()` usage)
+- **Fix:** Removed the unused import line
+- **Files modified:** test/features/tasks/data/task_history_dao_test.dart
+- **Verification:** flutter analyze reports zero issues
+- **Committed in:** ceae7d7 (Task 1 feat commit)
+
+---
+
+**Total deviations:** 1 auto-fixed (1 bug — unused import)
+**Impact on plan:** Trivial cleanup. No scope creep.
+
+## Issues Encountered
+None — plan executed smoothly. All 106 tests pass (101 pre-existing + 5 new DAO tests), zero analyze issues.
+
+## User Setup Required
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Phase 6 Plan 1 complete. Task history is fully functional.
+- Phase 7 (task sorting) can proceed independently.
+- No blockers.
+
+---
+*Phase: 06-task-history*
+*Completed: 2026-03-16*