docs(03-01): complete daily plan data layer plan

- SUMMARY.md documenting DailyPlanDao, models, provider, localization keys
- STATE.md updated to Phase 3 Plan 1 complete (8/10 plans, 80%)
- ROADMAP.md progress updated for Phase 3
- Requirements PLAN-01, PLAN-02, PLAN-03, PLAN-05 marked complete

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.planning/STATE.md

@@ -2,16 +2,16 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: planning
-stopped_at: Completed 02-05-PLAN.md (Phase 2 complete)
-last_updated: "2026-03-15T21:29:33.821Z"
-last_activity: 2026-03-15 — Completed 02-05-PLAN.md (Phase 2 verification gate passed)
+status: executing
+stopped_at: Completed 03-01-PLAN.md
+last_updated: "2026-03-16T11:31:13Z"
+last_activity: 2026-03-16 — Completed 03-01-PLAN.md (daily plan data layer)
 progress:
   total_phases: 4
   completed_phases: 2
-  total_plans: 7
-  completed_plans: 7
-  percent: 100
+  total_plans: 10
+  completed_plans: 8
+  percent: 80
 ---
 
 # Project State
@@ -25,18 +25,18 @@ See: .planning/PROJECT.md (updated 2026-03-15)
 
 ## Current Position
 
-Phase: 2 of 4 (Rooms and Tasks) -- COMPLETE
-Plan: 5 of 5 in current phase -- COMPLETE
-Status: Phase 2 complete -- ready for Phase 3 planning
-Last activity: 2026-03-15 — Completed 02-05-PLAN.md (Phase 2 verification gate passed)
+Phase: 3 of 4 (Daily Plan and Cleanliness)
+Plan: 1 of 3 in current phase -- COMPLETE
+Status: Executing Phase 3 -- Plan 01 complete, Plan 02 next
+Last activity: 2026-03-16 — Completed 03-01-PLAN.md (daily plan data layer)
 
-Progress: [██████████] 100%
+Progress: [████████--] 80%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 7
-- Average duration: 7.3 min
+- Total plans completed: 8
+- Average duration: 6.9 min
 - Total execution time: 0.9 hours
 
 **By Phase:**
@@ -45,10 +45,11 @@ Progress: [██████████] 100%
 |-------|-------|-------|----------|
 | 1 - Foundation | 2 | 15 min | 7.5 min |
 | 2 - Rooms and Tasks | 5 | 35 min | 7.0 min |
+| 3 - Daily Plan and Cleanliness | 1 | 5 min | 5.0 min |
 
 **Recent Trend:**
-- Last 5 plans: 02-01 (8 min), 02-02 (11 min), 02-03 (12 min), 02-04 (3 min), 02-05 (1 min)
-- Trend: verification-only plan completed in 1 min (auto-approved checkpoint)
+- Last 5 plans: 02-02 (11 min), 02-03 (12 min), 02-04 (3 min), 02-05 (1 min), 03-01 (5 min)
+- Trend: Data layer plan with TDD completed in 5 min
 
 *Updated after each plan completion*
 | Phase 02 P01 | 8 | 2 tasks | 16 files |
@@ -56,6 +57,7 @@ Progress: [██████████] 100%
 | Phase 02 P03 | 12 | 2 tasks | 8 files |
 | Phase 02 P04 | 3 | 2 tasks | 5 files |
 | Phase 02 P05 | 1 | 1 task | 0 files |
+| Phase 03 P01 | 5 | 2 tasks | 10 files |
 
 ## Accumulated Context
 
@@ -90,6 +92,10 @@ Recent decisions affecting current work:
 - [02-04]: Room creation navigates to /rooms/$roomId (context.go) instead of context.pop to show new room
 - [02-04]: Calendar-anchored intervals set anchorDay to today's day-of-month; day-count intervals set null
 - [02-05]: Auto-approved verification checkpoint: dart analyze clean, 59/59 tests passing, all Phase 2 code integrated
+- [03-01]: DailyPlanDao uses innerJoin (not leftOuterJoin) since tasks always have a room
+- [03-01]: watchCompletionsToday uses customSelect with readsFrom for proper stream invalidation
+- [03-01]: dailyPlanProvider uses manual StreamProvider.autoDispose (not @riverpod) due to drift Task type issue
+- [03-01]: Progress total = remaining overdue + remaining today + completedTodayCount for stable denominator
 
 ### Pending Todos
 
@@ -103,6 +109,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-15T21:22:53Z
-Stopped at: Completed 02-05-PLAN.md (Phase 2 complete)
+Last session: 2026-03-16T11:31:13Z
+Stopped at: Completed 03-01-PLAN.md
 Resume file: None