docs(14-05): complete SQLite-to-Postgres migration script plan

- SUMMARY.md with execution results
- STATE.md updated with plan 05 completion
- ROADMAP.md updated with phase 14 progress
- DB-04 requirement marked complete

.planning/phases/14-postgresql-migration/14-05-SUMMARY.md

@@ -0,0 +1,93 @@
+---
+phase: 14-postgresql-migration
+plan: 05
+subsystem: database
+tags: [sqlite, postgres, migration, data-migration, bun-sqlite]
+
+# Dependency graph
+requires:
+  - phase: 14-01
+    provides: PostgreSQL schema definitions (Drizzle pgTable)
+provides:
+  - One-time SQLite-to-PostgreSQL data migration script
+  - db:migrate-from-sqlite npm script
+affects: [14-06, deployment, upgrade-docs]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns: [dependency-ordered table migration, unix-to-Date conversion, serial sequence reset]
+
+key-files:
+  created:
+    - scripts/migrate-sqlite-to-postgres.ts
+  modified:
+    - package.json
+
+key-decisions:
+  - "Used postgres.js unsafe() for sequence reset instead of drizzle-orm sql template (simpler for raw DDL)"
+  - "Row-by-row insert for error tracing (per-row catch identifies failing record)"
+
+patterns-established:
+  - "Migration scripts live in scripts/ directory"
+  - "Type conversion helpers (unixToDate, intToBool) for SQLite-to-Postgres data transforms"
+
+requirements-completed: [DB-04]
+
+# Metrics
+duration: 2min
+completed: 2026-04-04
+---
+
+# Phase 14 Plan 05: SQLite-to-Postgres Migration Script Summary
+
+**One-time data migration script converting all 13 tables from SQLite to PostgreSQL with timestamp/boolean type conversions and serial sequence reset**
+
+## Performance
+
+- **Duration:** 2 min
+- **Started:** 2026-04-04T10:26:29Z
+- **Completed:** 2026-04-04T10:28:29Z
+- **Tasks:** 1
+- **Files modified:** 2
+
+## Accomplishments
+- Created standalone migration script that reads SQLite and writes to PostgreSQL
+- Handles all type conversions: unix epoch integers to Date objects, integer booleans to native booleans
+- Migrates tables in FK dependency order (4 waves: no-FK, FK-to-parents, FK-to-intermediates, junction tables)
+- Resets all 11 serial sequences after migration to prevent duplicate key errors
+- Added `db:migrate-from-sqlite` npm script for easy invocation
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Create SQLite-to-Postgres migration script** - `b4c3813` (feat)
+
+## Files Created/Modified
+- `scripts/migrate-sqlite-to-postgres.ts` - One-time migration script with type conversions and sequence reset
+- `package.json` - Added db:migrate-from-sqlite script
+
+## Decisions Made
+- Used `postgres.js` `unsafe()` for raw `setval` queries instead of drizzle-orm `sql` template -- simpler for dynamic table name interpolation in DDL
+- Row-by-row inserts instead of bulk for better error diagnostics (each failed row logs its ID)
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+- Biome lint flagged unused `sql` import from drizzle-orm (used `pg.unsafe()` instead) and unnecessary suppression comments -- removed both
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Migration script ready for use during SQLite-to-Postgres upgrade
+- Requires DATABASE_URL env var and existing SQLite file
+- Can be tested against a dev Postgres instance with `docker compose up`
+
+---
+*Phase: 14-postgresql-migration*
+*Completed: 2026-04-04*