diff --git a/.planning/STATE.md b/.planning/STATE.md
index f8c6564..cc96739 100644
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -5,7 +5,7 @@
 See: .planning/PROJECT.md (updated 2026-02-09)
 
 **Core value:** Reliable, lag-free GPS speed display that coexists politely with other Android apps
-**Current focus:** Phase 1 - Foundation
+**Current focus:** Phase 2 - Provider Migration (next)
 
 ## Current Position
 
@@ -93,7 +93,7 @@ Recent decisions affecting current work:
 
 ## Session Continuity
 
-Last session: 2026-02-09 (plan 01-02 execution)
-Stopped at: Completed 01-02-PLAN.md - Screen extraction (SpeedometerScreen, OverlaySpeedometer), main.dart slimmed to 39 lines
-Resume file: None
-Next action: Phase 1 complete - Ready for Phase 2 planning
+Last session: 2026-02-09 (Phase 1 execution complete)
+Stopped at: Phase 1 fully complete and verified (9/9 must-haves). Ready for Phase 2.
+Resume file: .planning/phases/01-foundation/.continue-here.md
+Next action: /gsd:discuss-phase 2 or /gsd:plan-phase 2
diff --git a/.planning/phases/01-foundation/.continue-here.md b/.planning/phases/01-foundation/.continue-here.md
new file mode 100644
index 0000000..a060950
--- /dev/null
+++ b/.planning/phases/01-foundation/.continue-here.md
@@ -0,0 +1,80 @@
+---
+phase: 01-foundation
+task: complete
+total_tasks: 5 (3 in plan 01, 2 in plan 02)
+status: phase_complete
+last_updated: 2026-02-09T22:15:00Z
+---
+
+<current_state>
+Phase 1 (Foundation) is fully complete. Both plans executed, verified (9/9 must-haves passed), committed, and documented. The project is at the boundary between Phase 1 and Phase 2.
+
+Branch: feature/gps-manager-architecture
+Last commit: 8e3ad7f docs(01): complete foundation phase
+</current_state>
+
+<completed_work>
+
+**Plan 01-01: Infrastructure, Logger, Constants, Models (12.8 min)**
+- Task 1: Directory structure (screens/, widgets/, providers/, models/, config/), Logger utility, 3 constants files (GpsConfig, TimingConfig, OverlayConfig)
+- Task 2: SpeedUnit and ColorThemes moved to config/, ProcessedGpsData/OverlayMessage/ThemeModel extracted to models/
+- Task 3: All imports rewired, 106+ print/customDebugPrint calls replaced with Logger, old files deleted
+- Commits: 2b2fc8f, 5122be4, a0d93d7
+
+**Plan 01-02: Screen Extraction (6.8 min)**
+- Task 1: SpeedometerScreen (802 lines) extracted to screens/speedometer_screen.dart
+- Task 2: OverlaySpeedometer (303 lines) extracted to screens/overlay_screen.dart, main.dart slimmed to 39 lines
+- Non-blocking checkpoint: Physical device regression testing recommended (not yet performed)
+- Commits: bc36076, ad077d1
+
+**Phase completion:**
+- Verification: 9/9 must-haves passed (01-VERIFICATION.md)
+- Requirements ORG-01 through ORG-08 marked Complete in REQUIREMENTS.md
+- ROADMAP.md, STATE.md updated
+- Commit: 8e3ad7f
+</completed_work>
+
+<remaining_work>
+
+**Optional before Phase 2:**
+- [ ] Physical device regression test (non-blocking checkpoint from 01-02)
+- [ ] Consider analysis_options.yaml to suppress SCREAMING_SNAKE lint warnings (21 info-level)
+
+**Phase 2: Provider Migration (not yet planned)**
+- Replace setState with Provider pattern for reactive state management
+- Requirements: STATE-01 through STATE-07
+- Depends on Phase 1 (satisfied)
+- Expected: 2-3 plans
+- HIGH RISK: Async lifecycle complexity needs pre-audit
+</remaining_work>
+
+<decisions_made>
+
+- SCREAMING_SNAKE naming for behavioral constants (GpsConfig, TimingConfig, OverlayConfig)
+- Logger utility with 4 severity levels replaces all print()/customDebugPrint() globally
+- OverlayMessage typed class for IPC instead of raw Maps (toMap/fromMap serialization)
+- ThemeModel delegates palette storage to ColorThemes (separation of concerns)
+- Layer-first directory structure (screens/, widgets/, providers/, models/, config/, services/)
+- main.dart as pure entry point (39 lines — main(), overlayMain(), SpeedoApp only)
+</decisions_made>
+
+<blockers>
+None. Phase 1 clean. Phase 2 has known risks documented in STATE.md:
+- HIGH RISK: 5+ async patterns in SpeedometerScreen need audit before provider migration
+- GpsDataManager singleton disposal strategy needs design decision
+- Manual regression testing checklist should be created before Phase 2
+</blockers>
+
+<context>
+The monolithic main.dart (1,133 lines) has been decomposed into a clean modular structure. The app compiles with zero errors (22 info-level warnings, 21 of which are intentional SCREAMING_SNAKE convention). No behavior was changed — this was purely structural.
+
+The codebase is now ready for Phase 2's Provider migration. The key challenge will be threading Provider through the existing async patterns: GPS stream subscription, overlay lifecycle management, timer-based heartbeats, and widget lifecycle observers. SpeedometerScreen alone has 5+ async patterns that need careful handling during the migration.
+
+Phase 3 (Overlay) and Phase 4 (GPS) both depend on Phase 2 but are independent of each other — they could potentially run in parallel after Phase 2 completes.
+</context>
+
+<next_action>
+Resume with: `/gsd:discuss-phase 2` or `/gsd:plan-phase 2`
+
+The discuss step is recommended because Phase 2 has HIGH RISK async complexity. Gathering context first (auditing async patterns, deciding GpsDataManager disposal strategy) will produce better plans.
+</next_action>