feat: REQ-002/REQ-010 implementation — assets.tag_ids column + GET /v1/assets admin catalog (BAT-012)

- REQ-002 scope redefinition: portfolios.tag_ids → assets.tag_ids UUID[] column with GIN index
- REQ-010 augmentation: GET /v1/assets redesigned as admin catalog endpoint (admin-only, no token_type branching)
- Asset tagging infrastructure: tag_ids column, archived flag synthesis for inactive tags, list_assets N+1 optimization
- DB migration 20260521_0023: assets.tag_ids UUID[] NOT NULL DEFAULT '{}', idx_assets_tag_ids_gin
- Test suite: 17 new test cases for assets.tag_ids + GET /v1/assets AC-9~12 (362 tests total)
- Documentation: runtime flows, release baseline, batch verification all updated
- BAT-012 added to REL-001 Included Batch and marked release-candidate

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/srs/Interface/req-010_admin-asset-catalog-crud.md

@@ -1,6 +1,6 @@
 # REQ-010: admin asset catalog CRUD
 
-- Status: Approved
+- Status: Implemented
 - Type: Interface
 - Priority: High
 - Owner: Justin Ko
@@ -60,6 +60,40 @@
 
 ## Change Log
 
+### CHG-20260521-03
+- Date: 2026-05-21
+- Author: Justin Ko
+
+#### Change Summary
+- Status: Approved → Implemented (CHG-20260521-02 augmentation으로 신설된 AC-9~12가 BAT-012 verification에서 evidence 확보)
+
+#### Intent
+- BAT-012 confirm-batch-verification 완료. GET /v1/assets admin catalog 재정의(AC-9~12) 신규 evidence + 기존 AC-1~8 회귀 통과 모두 확인.
+
+#### Acceptance Criteria Delta
+- No change
+
+#### Impacted Area Delta
+- No change
+
+#### Delivery Trace Delta
+- Batches:
+  - BAT-012 (release-candidate) — primary trace, AC-1~12 전체 evidence
+  - BAT-002 (release-candidate) — augmentation superseded by BAT-012. BAT-002 본래 trace인 REQ-012/REQ-015는 영향 없음.
+- Releases:
+  - REL-001 — CHG-20260521-02 augmentation scope는 BAT-012로 이관됨. REL-001 release 본문은 BAT-012 inclusion 정리 시 별도 갱신 필요.
+
+#### Revalidation Impact
+- Reverification Needed: no
+- Existing Implementation Invalidated: no
+- Status Recommendation: implemented
+- Follow-up Action: REL-001 release 문서에 BAT-012 trace 반영 (또는 신규 REL에 BAT-012 포함)
+
+#### Validation Plan
+- tests/test_asset_catalog.py AC-9~12 신규 8건: test_get_v1_assets_admin_returns_catalog_response, test_get_v1_assets_status_filter_*, test_get_v1_assets_market_filter, test_get_v1_assets_user_token_returns_403, test_get_v1_assets_service_token_returns_403
+- 기존 AC-1~8 회귀 9건: test_asset_cli_create_success / list / update / deactivate / test_asset_http_create_returns_201 / update_returns_200 / deactivate_returns_200 / non_admin_403
+- 전체 회귀: 362 passed in 13.06s
+
 ### CHG-20260521-02
 - Date: 2026-05-21
 - Author: Justin Ko