docs(01-03): complete API foundation plan

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

.planning/STATE.md

@@ -3,15 +3,15 @@ gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
 status: executing
-stopped_at: Completed 01-01-PLAN.md
-last_updated: "2026-03-11T10:50:59.918Z"
-last_activity: 2026-03-11 -- Completed 01-01 (ClickHouse infrastructure and WriteBuffer)
+stopped_at: Completed 01-03-PLAN.md
+last_updated: "2026-03-11T11:03:08.000Z"
+last_activity: 2026-03-11 -- Completed 01-03 (API foundation, protocol interceptor, integration tests)
 progress:
   total_phases: 4
   completed_phases: 0
   total_plans: 3
-  completed_plans: 1
-  percent: 33
+  completed_plans: 2
+  percent: 66
 ---
 
 # Project State
@@ -26,11 +26,11 @@ See: .planning/PROJECT.md (updated 2026-03-11)
 ## Current Position
 
 Phase: 1 of 4 (Ingestion Pipeline + API Foundation)
-Plan: 1 of 3 in current phase
+Plan: 2 of 3 in current phase
 Status: Executing
-Last activity: 2026-03-11 -- Completed 01-01 (ClickHouse infrastructure and WriteBuffer)
+Last activity: 2026-03-11 -- Completed 01-03 (API foundation, protocol interceptor, integration tests)
 
-Progress: [███░░░░░░░] 33%
+Progress: [██████░░░░] 66%
 
 ## Performance Metrics
 
@@ -51,6 +51,7 @@ Progress: [███░░░░░░░] 33%
 
 *Updated after each plan completion*
 | Phase 01 P01 | 3min | 2 tasks | 13 files |
+| Phase 01 P03 | 10min | 2 tasks | 12 files |
 
 ## Accumulated Context
 
@@ -65,6 +66,9 @@ Recent decisions affecting current work:
 - [Roadmap]: Web UI deferred to v2
 - [Phase 01]: Used spring-boot-starter-jdbc for JdbcTemplate + HikariCP auto-config
 - [Phase 01]: Created MetricsSnapshot record in core module (cameleer3-common has no metrics model)
+- [Phase 01]: Upgraded testcontainers to 2.0.3 for Docker Desktop 29.x compatibility
+- [Phase 01]: Changed error_message/error_stacktrace to non-nullable String for tokenbf_v1 index compat
+- [Phase 01]: TTL expressions require toDateTime() cast for DateTime64 columns in ClickHouse 25.3
 
 ### Pending Todos
 
@@ -79,6 +83,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-11T10:50:59.915Z
-Stopped at: Completed 01-01-PLAN.md
+Last session: 2026-03-11T11:03:08.000Z
+Stopped at: Completed 01-03-PLAN.md
 Resume file: None