docs(01-02): complete workflow import and verification plan

Tasks completed: 3/3
- Import and Activate Workflow in n8n
- Verify Authorized User Echo
- Verify Unauthorized User Blocked

Phase 1 Foundation complete (2/2 plans)
Deviation: Hardcoded user ID (n8n CE env var limitation)

SUMMARY: .planning/phases/01-foundation/01-02-SUMMARY.md

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.planning/phases/01-foundation/01-02-SUMMARY.md

@@ -0,0 +1,112 @@
+---
+phase: 01-foundation
+plan: 02
+subsystem: messaging
+tags: [n8n, telegram, webhook, auth, integration-test]
+
+# Dependency graph
+requires:
+  - phase: 01-foundation
+    provides: n8n workflow JSON for Telegram echo bot
+provides:
+  - Verified end-to-end Telegram message round-trip
+  - Confirmed user authentication working
+  - Production-ready messaging foundation
+affects: [02-docker-integration, 03-container-actions]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns: [hardcoded-user-id-auth]
+
+key-files:
+  created: []
+  modified: [n8n-workflow.json]
+
+key-decisions:
+  - "Hardcode user ID in workflow instead of env var (n8n community edition limitation)"
+  - "Silent ignore verified - unauthorized users see no response"
+
+patterns-established:
+  - "Auth pattern: IF node checks hardcoded user ID (env var blocked by n8n CE)"
+  - "Integration test pattern: manual verification of messaging round-trip"
+
+# Metrics
+duration: 15min
+completed: 2026-01-28
+---
+
+# Phase 1 Plan 2: Workflow Import and Verification Summary
+
+**End-to-end Telegram messaging verified with user ID authentication - authorized users get echo, unauthorized get silent ignore**
+
+## Performance
+
+- **Duration:** ~15 min
+- **Started:** 2026-01-28
+- **Completed:** 2026-01-28
+- **Tasks:** 3 (1 human-action, 2 human-verify)
+- **Files modified:** 1 (n8n-workflow.json via deviation fix)
+
+## Accomplishments
+- Workflow imported and activated in n8n
+- Authorized user echo working with timestamp
+- Unauthorized user blocking verified (silent ignore)
+- REQ-01 (send/receive messages) validated
+- REQ-09 (user ID authentication) validated
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Import and Activate Workflow in n8n** - (human action, no commit)
+2. **Task 2: Verify Authorized User Echo** - (human verify, no commit)
+3. **Task 3: Verify Unauthorized User Blocked** - (human verify, no commit)
+
+**Deviation fix:** `23c5705` (fix: hardcode user ID instead of env var)
+
+## Files Created/Modified
+- `n8n-workflow.json` - Updated to hardcode user ID (deviation fix)
+
+## Decisions Made
+- Hardcoded TELEGRAM_USER_ID directly in workflow JSON instead of using $env reference
+  - Rationale: n8n community edition blocks environment variable access in expressions for security
+  - Impact: User ID is now visible in workflow JSON, but file is gitignored
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 3 - Blocking] Hardcoded user ID instead of environment variable**
+- **Found during:** Task 2 (Authorized User Echo verification)
+- **Issue:** n8n community edition does not allow $env access in workflow expressions - workflow was failing to authenticate
+- **Fix:** Hardcoded the actual TELEGRAM_USER_ID value directly in the IF node condition
+- **Files modified:** n8n-workflow.json
+- **Verification:** Echo now works for authorized user
+- **Committed in:** `23c5705`
+
+---
+
+**Total deviations:** 1 auto-fixed (1 blocking)
+**Impact on plan:** Essential fix - without it, workflow couldn't authenticate users. Original env var approach was cleaner but incompatible with n8n CE.
+
+## Issues Encountered
+- n8n community edition security restriction: Environment variables cannot be accessed in workflow expressions ($env.VAR syntax blocked)
+- Resolution: Hardcoded the user ID value directly in workflow JSON
+
+## User Setup Required
+
+User completed during Task 1:
+- Imported n8n-workflow.json into n8n
+- Selected Telegram credential in Telegram nodes
+- Activated workflow
+
+## Next Phase Readiness
+- Messaging foundation fully validated and working
+- User authentication confirmed operational
+- Ready for Phase 2: Docker Integration
+- No blockers or concerns
+
+---
+*Phase: 01-foundation*
+*Completed: 2026-01-28*