Plugin route registration in main.py was mutating module-level router
singletons by appending require_active_plugin dependencies directly to
router.routes. This persisted across app instances, causing test routes
to inherit require_active_plugin checks and return 403 "plugin inactive"
when tests created their own FastAPI apps with those routers.
Fix: use app.include_router(router, dependencies=[plugin_dep]) which
adds dependencies at the app level without modifying the shared router.
Fixes 35 test failures across 4 test files:
- test_agent_memory.py (6 failures)
- test_external_agent_api.py (15 failures)
- test_graph_rag.py (7 failures)
- test_marketplace.py (7 failures)
Agent Zero
bf60e8090a