# V1.2 Task 1 Completion Report

## Status

Completed

## Implemented

- Added V062 account lifecycle and profile revision columns.
- Added V063 CSV import batch and row tables with idempotency and row-level results.
- Added V064 independent consent state and service state tables.
- Added hash-only credential entity and lifecycle/import/consent entities.
- Backfilled approved existing profiles so `published_profile_revision` equals `profile_revision`.
- Added H2 schema coverage and migration/entity contract tests.

## Database Changes

- New migrations: `V062__add_v12_user_account_lifecycle.sql`, `V063__add_v12_import_batches.sql`, `V064__add_v12_consent_and_service_state.sql`.
- Existing V001-V061 files were not modified.
- No plaintext password column exists.

## Automated Tests

```text
mvn -B -f backend/pom.xml test "-Dtest=V12MigrationContractTest,MigrationValidationTest,EntityMigrationParityTest"
21 tests passed, 0 failures, 0 errors
```

The first contract run failed as expected before V062-V064 existed. A parity failure also found the missing `deleted_at` on `user_import_rows`; the migration and H2 schema were corrected and the suite passed.

## Not Verified

- Clean PostgreSQL V001-V064 migration was not executed because no isolated PostgreSQL runtime was available in this step.
- Profile update transaction and service API gates are intentionally deferred to Task 4.

## Next Phase

Task 2: user registration, phone verification, and historical WeChat account association.