fix: Comprehensive validation and bug fixes

Infrastructure:
- Add Redis and Celery workers to all docker-compose files
- Fix celery migration race condition in entrypoint.sh
- Add healthchecks and resource limits to dev compose
- Update .env.template with Redis/Celery variables

Backend Models & Schemas:
- Rename Sprint.completed_points to velocity (per requirements)
- Add AgentInstance.name as required field
- Rename Issue external tracker fields for consistency
- Add IssueSource and TrackerType enums
- Add Project.default_tracker_type field

Backend Fixes:
- Add Celery retry configuration with exponential backoff
- Remove unused sequence counter from EventBus
- Add mypy overrides for test dependencies
- Fix test file using wrong schema (UserUpdate -> dict)

Frontend Fixes:
- Fix memory leak in useProjectEvents (proper cleanup)
- Fix race condition with stale closure in reconnection
- Sync TokenWithUser type with regenerated API client
- Fix expires_in null handling in useAuth
- Clean up unused imports in prototype pages
- Add ESLint relaxed rules for prototype files

CI/CD:
- Add E2E testing stage with Testcontainers
- Add security scanning with Trivy and pip-audit
- Add dependency caching for faster builds

Tests:
- Update all tests to use renamed fields (velocity, name, etc.)
- Fix 14 schema test failures
- All 1500 tests pass with 91% coverage

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/tests/crud/syndarix/test_issue_crud.py

@@ -50,16 +50,16 @@ class TestIssueCreate:
             issue_data = IssueCreate(
                 project_id=test_project_crud.id,
                 title="External Issue",
-                external_tracker="gitea",
-                external_id="gitea-123",
-                external_url="https://gitea.example.com/issues/123",
-                external_number=123,
+                external_tracker_type="gitea",
+                external_issue_id="gitea-123",
+                remote_url="https://gitea.example.com/issues/123",
+                external_issue_number=123,
             )
             result = await issue_crud.create(session, obj_in=issue_data)
 
-            assert result.external_tracker == "gitea"
-            assert result.external_id == "gitea-123"
-            assert result.external_number == 123
+            assert result.external_tracker_type == "gitea"
+            assert result.external_issue_id == "gitea-123"
+            assert result.external_issue_number == 123
 
     @pytest.mark.asyncio
     async def test_create_issue_minimal(self, async_test_db, test_project_crud):
@@ -433,8 +433,8 @@ class TestIssueSyncStatus:
             issue_data = IssueCreate(
                 project_id=test_project_crud.id,
                 title="Sync Status Issue",
-                external_tracker="gitea",
-                external_id="gitea-456",
+                external_tracker_type="gitea",
+                external_issue_id="gitea-456",
             )
             created = await issue_crud.create(session, obj_in=issue_data)
             issue_id = created.id
@@ -463,8 +463,8 @@ class TestIssueSyncStatus:
             issue_data = IssueCreate(
                 project_id=test_project_crud.id,
                 title="Pending Sync Issue",
-                external_tracker="gitea",
-                external_id="gitea-789",
+                external_tracker_type="gitea",
+                external_issue_id="gitea-789",
             )
             created = await issue_crud.create(session, obj_in=issue_data)
 
@@ -494,20 +494,20 @@ class TestIssueExternalTracker:
             issue_data = IssueCreate(
                 project_id=test_project_crud.id,
                 title="External ID Issue",
-                external_tracker="github",
-                external_id="github-unique-123",
+                external_tracker_type="github",
+                external_issue_id="github-unique-123",
             )
             await issue_crud.create(session, obj_in=issue_data)
 
         async with AsyncTestingSessionLocal() as session:
             result = await issue_crud.get_by_external_id(
                 session,
-                external_tracker="github",
-                external_id="github-unique-123",
+                external_tracker_type="github",
+                external_issue_id="github-unique-123",
             )
 
             assert result is not None
-            assert result.external_id == "github-unique-123"
+            assert result.external_issue_id == "github-unique-123"
 
     @pytest.mark.asyncio
     async def test_get_by_external_id_not_found(self, async_test_db):
@@ -517,8 +517,8 @@ class TestIssueExternalTracker:
         async with AsyncTestingSessionLocal() as session:
             result = await issue_crud.get_by_external_id(
                 session,
-                external_tracker="gitea",
-                external_id="non-existent",
+                external_tracker_type="gitea",
+                external_issue_id="non-existent",
             )
             assert result is None