chore: archive v1.2 milestone

- Added v1.2 entry to MILESTONES.md
- Created milestones/v1.2-ROADMAP.md archive
- Updated ROADMAP.md with archive link
- Evolved PROJECT.md with v1.2 validated requirements
- Updated STATE.md for next milestone planning

.planning/phases/11-architect-agent/11-08-SUMMARY.md

@@ -0,0 +1,132 @@
+---
+phase: 11-architect-agent
+plan: 08
+subsystem: test
+tags: [e2e-tests, architect, test-harness, discuss-mode, breakdown-mode]
+
+# Dependency graph
+requires:
+  - phase: 11-05
+    provides: spawnArchitectDiscuss, spawnArchitectBreakdown procedures
+  - phase: 11-06
+    provides: Initiative and architect CLI commands
+  - phase: 11-07
+    provides: Unit tests for modes and repositories
+provides:
+  - TestHarness with tRPC caller and architect scenario helpers
+  - E2E tests for discuss mode completion and Q&A flow
+  - E2E tests for breakdown mode and phase persistence
+  - Full workflow test: discuss -> breakdown -> phases
+affects: [testing-infrastructure, e2e-coverage]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - "TestHarness tRPC caller for direct procedure invocation"
+    - "Architect scenario helpers wrapping MockAgentScenario"
+
+key-files:
+  created:
+    - src/test/e2e/architect-workflow.test.ts
+  modified:
+    - src/test/harness.ts
+    - src/test/index.ts
+    - src/agent/mock-manager.test.ts
+
+key-decisions:
+  - "TestHarness wired with tRPC caller and initiative/phase repositories"
+  - "Architect scenario helpers via MockAgentManager (context_complete, breakdown_complete)"
+  - "E2E tests cover full discuss -> breakdown -> phase persistence workflow"
+
+patterns-established:
+  - "TestHarness as integration point for tRPC-based E2E testing"
+  - "Scenario helpers for mode-specific agent behaviors"
+
+# Metrics
+duration: 4min
+completed: 2026-01-31
+---
+
+# Phase 11 Plan 08: TestHarness Helpers & Architect E2E Tests Summary
+
+**Added TestHarness architect mode support and comprehensive E2E tests for the complete architect workflow**
+
+## Performance
+
+- **Duration:** 4 min
+- **Started:** 2026-01-31T19:25:00Z
+- **Completed:** 2026-01-31T19:29:00Z
+- **Tasks:** 3
+- **Files modified:** 4
+
+## Accomplishments
+
+- Enhanced TestHarness with tRPC caller and initiative/phase repositories
+- Added architect-specific scenario helpers (setArchitectDiscussComplete, setArchitectBreakdownComplete)
+- Added convenience helpers (mockAgentManager alias, advanceTimers, getEmittedEvents)
+- Created comprehensive E2E tests for discuss mode (completion, Q&A flow)
+- Created E2E tests for breakdown mode and phase persistence
+- Added full workflow test covering discuss -> breakdown -> phases
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Add TestHarness helpers for architect modes** - `021937c` (feat)
+2. **Task 2: Add E2E test for discuss mode** - `ae130e9` (test)
+3. **Task 3: Add E2E test for breakdown mode and phase persistence** - `47b4623` (test)
+
+## Files Created/Modified
+
+- `src/test/harness.ts` - Added tRPC caller, repositories, architect helpers
+- `src/test/index.ts` - Export TRPCCaller type
+- `src/test/e2e/architect-workflow.test.ts` - New E2E test file (5 tests)
+- `src/agent/mock-manager.test.ts` - Fixed pre-existing test issues
+
+## Tests Added
+
+- **Discuss mode completion** - Spawn architect, complete with decisions
+- **Discuss Q&A flow** - Pause on questions, resume with answers
+- **Breakdown mode completion** - Spawn architect, complete with phases
+- **Phase persistence** - Create and retrieve phases from breakdown
+- **Full workflow** - Discuss -> Breakdown -> Phase persistence
+
+## Decisions Made
+
+1. **TestHarness tRPC caller** - Enables direct procedure invocation in tests
+2. **Architect scenario helpers** - Convenience wrappers for context_complete, breakdown_complete
+3. **Full workflow coverage** - Single test proving entire architect flow works
+
+## Deviations from Plan
+
+Minor fixes to pre-existing test issues (dependencies in PhaseBreakdown, type casting for AgentStoppedEvent).
+
+## Issues Encountered
+
+None
+
+## User Setup Required
+
+None - tests run automatically.
+
+## Phase 11 Completion
+
+This was the final plan in Phase 11 (Architect Agent). Phase 11 is now complete:
+- 11-01: Agent mode and schema updates
+- 11-02: Discuss and breakdown mode output schemas
+- 11-03: Mode-aware agent manager implementation
+- 11-04: Initiative and phase tRPC procedures
+- 11-05: Agent prompts module and architect spawn procedures
+- 11-06: Initiative and architect CLI commands
+- 11-07: Unit tests for modes and repositories
+- 11-08: TestHarness helpers and E2E tests (this plan)
+
+## Next Phase Readiness
+
+- Phase 11 complete - architect workflow fully tested
+- Ready for Phase 12 (if exists) or milestone completion
+
+---
+*Phase: 11-architect-agent*
+*Completed: 2026-01-31*