feat(bat-019): REQ-044 GET /v1/assets require_read + REQ-045 GET /v1/daemons caller-scope

REQ-044: list_catalog_assets 의존성을 require_admin → require_read로 완화.
asset 쓰기(POST/PATCH/DELETE)는 require_admin 유지.

REQ-045: GET /v1/daemons 신규 엔드포인트 — caller 소유 데몬만 반환(require_read).
user_id=None(env 토큰)은 빈 목록 200. DaemonResponse/DaemonListResponse 스키마 추가.

기존 테스트(test_v1.py, test_asset_catalog.py, test_daemon_assignment.py, test_tags_master.py)
REQ-044 권한 완화에 맞게 업데이트. test_v1_daemons.py 신규 추가(13 케이스).

pytest 472 passed, 0 failed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VHtM5Ws1HKCKQ4JGi6GRb5

app/main.py

@@ -12,6 +12,7 @@ from app.api.portfolios import router as portfolio_router
 from app.api.strategy_sets import router as strategy_sets_router
 from app.api.users import router as users_router
 from app.api.v1_assets import router as v1_assets_router
+from app.api.v1_daemons import router as v1_daemons_router
 from app.api.v1_portfolios import router as v1_portfolios_router
 from app.api.v1_tags import router as v1_tags_router
 from app.api.v1_user_info import router as v1_user_info_router
@@ -81,6 +82,7 @@ def create_app(
     app.include_router(strategy_sets_router)
     app.include_router(users_router)
     app.include_router(v1_assets_router)
+    app.include_router(v1_daemons_router)
     app.include_router(v1_portfolios_router)
     app.include_router(v1_tags_router)
     app.include_router(v1_user_info_router)