docs(10-01): complete dead-code-cleanup plan

- Create 10-01-SUMMARY.md: deleted 3 orphaned v1.0 daily plan files, removed DailyPlanState
- Update STATE.md: position, decisions, blocker resolved, session info
- Update ROADMAP.md: Phase 10 complete, 10-01-PLAN.md checked off
- Update REQUIREMENTS.md: CLN-01 marked complete

.planning/REQUIREMENTS.md

@@ -23,7 +23,7 @@ Requirements for milestone v1.2 Polish & Task Management. Each maps to roadmap p
 
 ### Cleanup
 
-- [ ] **CLN-01**: Dead code from v1.0 daily plan (daily_plan_providers.dart, daily_plan_task_row.dart, progress_card.dart) is removed without breaking notification service (DailyPlanDao must be preserved)
+- [x] **CLN-01**: Dead code from v1.0 daily plan (daily_plan_providers.dart, daily_plan_task_row.dart, progress_card.dart) is removed without breaking notification service (DailyPlanDao must be preserved)
 
 ## Future Requirements
 

.planning/ROADMAP.md

@@ -35,7 +35,7 @@ See `milestones/v1.1-ROADMAP.md` for full phase details.
 
 - [x] **Phase 8: Task Delete** - Add smart delete action to tasks — hard delete if never completed, soft delete (deactivate) if completed at least once (completed 2026-03-18)
 - [x] **Phase 9: Task Creation UX** - Rework the frequency picker from flat preset chips to an intuitive "Every N units" interface with quick-select shortcuts (completed 2026-03-18)
-- [ ] **Phase 10: Dead Code Cleanup** - Remove orphaned v1.0 daily plan files and verify no regressions
+- [x] **Phase 10: Dead Code Cleanup** - Remove orphaned v1.0 daily plan files and verify no regressions (completed 2026-03-19)
 
 ## Phase Details
 
@@ -74,7 +74,7 @@ Plans:
 **Requirements**: CLN-01
 **Plans:** 1 plan
 Plans:
-- [ ] 10-01-PLAN.md — Delete 3 orphaned presentation files, remove DailyPlanState, verify zero regressions
+- [x] 10-01-PLAN.md — Delete 3 orphaned presentation files, remove DailyPlanState, verify zero regressions (completed 2026-03-19)
 **Success Criteria** (what must be TRUE):
   1. daily_plan_providers.dart, daily_plan_task_row.dart, and progress_card.dart are deleted
   2. DailyPlanDao is preserved (still used by notification service)
@@ -94,4 +94,4 @@ Plans:
 | 7. Task Sorting | v1.1 | 2/2 | Complete | 2026-03-16 |
 | 8. Task Delete | 2/2 | Complete    | 2026-03-18 | - |
 | 9. Task Creation UX | 1/1 | Complete   | 2026-03-18 | - |
-| 10. Dead Code Cleanup | v1.2 | 0/1 | Planned | - |
+| 10. Dead Code Cleanup | v1.2 | 1/1 | Complete | 2026-03-19 |

.planning/STATE.md

@@ -2,16 +2,16 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: "Ready for /gsd:plan-phase 8"
+status: "Completed 10-dead-code-cleanup 10-01-PLAN.md"
-stopped_at: Completed 09-task-creation-ux 09-01-PLAN.md
+stopped_at: Completed 10-dead-code-cleanup 10-01-PLAN.md
-last_updated: "2026-03-18T21:51:04.991Z"
+last_updated: "2026-03-19T00:05:00Z"
-last_activity: 2026-03-18 — Created v1.2 milestone
+last_activity: 2026-03-19 — Deleted orphaned v1.0 daily plan files and removed DailyPlanState
 progress:
   total_phases: 3
   completed_phases: 2
-  total_plans: 3
+  total_plans: 4
-  completed_plans: 3
+  completed_plans: 4
-  percent: 0
+  percent: 100
 ---
 
 # Project State
@@ -26,12 +26,12 @@ See: .planning/PROJECT.md (updated 2026-03-18)
 ## Current Position
 
 Milestone: v1.2 Polish & Task Management
-Phase: 8 — Task Delete (not yet planned)
+Phase: 10 — Dead Code Cleanup (complete)
-Status: Ready for /gsd:plan-phase 8
+Status: Completed 10-dead-code-cleanup 10-01-PLAN.md
-Last activity: 2026-03-18 — Created v1.2 milestone
+Last activity: 2026-03-19 — Deleted orphaned v1.0 daily plan files and removed DailyPlanState
 
 ```
-Progress: [░░░░░░░░░░] 0% (0/3 phases)
+Progress: [██████████] 100% (1/1 plans in phase 10)
 ```
 
 ## Performance Metrics
@@ -45,6 +45,7 @@ Progress: [░░░░░░░░░░] 0% (0/3 phases)
 | Phase 08-task-delete P01 | 9 | 2 tasks | 11 files |
 | Phase 08-task-delete P02 | 2 | 2 tasks | 3 files |
 | Phase 09-task-creation-ux P01 | 2 | 1 tasks | 4 files |
+| Phase 10-dead-code-cleanup P01 | 5 | 2 tasks | 4 files |
 
 ## Accumulated Context
 
@@ -57,6 +58,8 @@ Decisions archived to PROJECT.md Key Decisions table.
 - [Phase 08-task-delete]: smartDeleteTask kept separate from deleteTask to preserve existing hard-delete path for cascade/other uses
 - [Phase 08-task-delete]: Delete button placed after history section with divider, visible only in edit mode
 - [Phase 09-task-creation-ux]: Picker is single source of truth: _resolveFrequency() reads from picker always; _ShortcutFrequency enum handles bidirectional sync via toPickerValues()/fromPickerValues()
+- [Phase 10-dead-code-cleanup]: DailyPlanDao kept in database.dart — still used by settings service; only the three presentation layer files were deleted
+- [Phase 10-dead-code-cleanup]: TaskWithRoom retained in daily_plan_models.dart — actively used by calendar_dao.dart, calendar_providers.dart, and related calendar files
 
 ### Pending Todos
 
@@ -64,11 +67,11 @@ None.
 
 ### Blockers/Concerns
 
-- Dead code from v1.0: daily_plan_providers.dart, daily_plan_task_row.dart, progress_card.dart (DailyPlanDao still used by notification service) — scheduled for Phase 10
+None.
 
 ## Session Continuity
 
-Last session: 2026-03-18T21:46:51.066Z
+Last session: 2026-03-19T00:05:00Z
-Stopped at: Completed 09-task-creation-ux 09-01-PLAN.md
+Stopped at: Completed 10-dead-code-cleanup 10-01-PLAN.md
 Resume file: None
-Next action: /gsd:plan-phase 8
+Next action: Phase 10 complete

.planning/phases/10-dead-code-cleanup/10-01-SUMMARY.md

@@ -0,0 +1,98 @@
+---
+phase: 10-dead-code-cleanup
+plan: 01
+subsystem: ui
+tags: [flutter, dead-code, cleanup, daily-plan, calendar]
+
+# Dependency graph
+requires:
+  - phase: 05-calendar-strip
+    provides: "Calendar strip that superseded daily_plan_providers.dart, daily_plan_task_row.dart, progress_card.dart"
+provides:
+  - "Three orphaned v1.0 daily plan presentation files removed from codebase"
+  - "DailyPlanState class removed; TaskWithRoom class retained in daily_plan_models.dart"
+affects: []
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns: []
+
+key-files:
+  created: []
+  modified:
+    - lib/features/home/domain/daily_plan_models.dart
+
+key-decisions:
+  - "DailyPlanDao kept in database.dart registration — still used by notification/settings service; only the presentation layer files were deleted"
+  - "TaskWithRoom retained in daily_plan_models.dart — actively imported by calendar_dao.dart, calendar_providers.dart, and related calendar files"
+
+patterns-established: []
+
+requirements-completed: [CLN-01]
+
+# Metrics
+duration: 5min
+completed: 2026-03-19
+---
+
+# Phase 10 Plan 01: Dead Code Cleanup Summary
+
+**Deleted three orphaned v1.0 daily plan presentation files and stripped DailyPlanState from domain models, leaving TaskWithRoom intact for the calendar system — zero test/analysis regressions across all 144 tests.**
+
+## Performance
+
+- **Duration:** ~5 min
+- **Started:** 2026-03-19T00:00:54Z
+- **Completed:** 2026-03-19T00:05:00Z
+- **Tasks:** 2
+- **Files modified:** 4 (3 deleted, 1 trimmed)
+
+## Accomplishments
+
+- Deleted `daily_plan_providers.dart`, `daily_plan_task_row.dart`, and `progress_card.dart` — all orphaned since Phase 5 replaced the daily plan UI with the calendar strip
+- Removed `DailyPlanState` class from `daily_plan_models.dart` (it was only referenced by the now-deleted providers file)
+- Preserved `TaskWithRoom` in `daily_plan_models.dart` — confirmed it remains importable by calendar system files
+- `dart analyze` reports zero issues; all 144 tests pass with no regressions
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Delete orphaned files and remove DailyPlanState** - `510529a` (chore)
+2. **Task 2: Verify zero regressions** - verification only, no file changes
+
+**Plan metadata:** (docs commit — see final commit)
+
+## Files Created/Modified
+
+- `lib/features/home/domain/daily_plan_models.dart` - Removed DailyPlanState class (lines 16-31); TaskWithRoom preserved
+- `lib/features/home/presentation/daily_plan_providers.dart` - DELETED (orphaned v1.0 file)
+- `lib/features/home/presentation/daily_plan_task_row.dart` - DELETED (orphaned v1.0 file)
+- `lib/features/home/presentation/progress_card.dart` - DELETED (orphaned v1.0 file)
+
+## Decisions Made
+
+- DailyPlanDao was NOT removed from `database.dart` — it is still registered in the `@DriftDatabase` annotation and used by `settings_screen.dart`. Only the presentation layer files were deleted.
+- TaskWithRoom was kept because it is imported by: `calendar_dao.dart`, `calendar_providers.dart`, `calendar_models.dart`, `calendar_day_list.dart`, `calendar_task_row.dart`, and `daily_plan_dao.dart`.
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+None.
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+
+- Phase 10 dead code cleanup complete
+- No blockers — dead code that was tracked as a blocker in STATE.md is now resolved
+
+---
+*Phase: 10-dead-code-cleanup*
+*Completed: 2026-03-19*