Test dashboard: full menu system, all-service tests, filtering

- Run tests for all 10 services via per-service pytest subprocesses
- Group results by service with section headers
- Clickable summary cards filter by outcome (passed/failed/errors/skipped)
- Service filter nav using ~nav-link buttons in menu bar
- Full menu integration: ~header-row + ~header-child + ~menu-row
- Show logo image via cart-mini rendering
- Mount full service directories in docker-compose for test access
- Add 24 unit test files across 9 services

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.dev.yml

@@ -367,25 +367,16 @@ services:
       - ./test/runner.py:/app/runner.py
       - ./test/path_setup.py:/app/path_setup.py
       - ./test/entrypoint.sh:/usr/local/bin/entrypoint.sh
-      # sibling models
-      - ./blog/__init__.py:/app/blog/__init__.py:ro
-      - ./blog/models:/app/blog/models:ro
-      - ./market/__init__.py:/app/market/__init__.py:ro
-      - ./market/models:/app/market/models:ro
-      - ./cart/__init__.py:/app/cart/__init__.py:ro
-      - ./cart/models:/app/cart/models:ro
-      - ./events/__init__.py:/app/events/__init__.py:ro
-      - ./events/models:/app/events/models:ro
-      - ./federation/__init__.py:/app/federation/__init__.py:ro
-      - ./federation/models:/app/federation/models:ro
-      - ./account/__init__.py:/app/account/__init__.py:ro
-      - ./account/models:/app/account/models:ro
-      - ./relations/__init__.py:/app/relations/__init__.py:ro
-      - ./relations/models:/app/relations/models:ro
-      - ./likes/__init__.py:/app/likes/__init__.py:ro
-      - ./likes/models:/app/likes/models:ro
-      - ./orders/__init__.py:/app/orders/__init__.py:ro
-      - ./orders/models:/app/orders/models:ro
+      # sibling service code + tests
+      - ./blog:/app/blog:ro
+      - ./market:/app/market:ro
+      - ./cart:/app/cart:ro
+      - ./events:/app/events:ro
+      - ./federation:/app/federation:ro
+      - ./account:/app/account:ro
+      - ./relations:/app/relations:ro
+      - ./likes:/app/likes:ro
+      - ./orders:/app/orders:ro
 
   test-unit:
     build: