Pg 4 (#2390)

* feat: postgres tests

* feat: mongo cutoff

* feat: mongo cutoff

* feat: adjust docs and compose files

* fix: mini code mongo removals

* fix: tests and k8s mongo stuff

* feat: test fixes

* fix: ruff

* fix: vale

* Potential fix for pull request finding 'CodeQL / Clear-text logging of sensitive information'

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

* fix: mini suggestions

* vale lint fix 2

* fix: codeql columns thing

* fix: test mongo

* fix: tests coverage

* feat: better tests 4

* feat: more tests

* feat: decent coverage

* fix: ruff fixes

* fix: remove mongo mock

* feat: enhance workflow engine and API routes; add document retrieval and source handling

* feat: e2e tests

* fix: mcp, mongo and more

* fix: mini codeql warning

* fix: agent chunk view

* fix: mini issues

* fix: more pg fixes

* feat: postgres prep on start

* feat: qa tests

* fix: mini improvements

* fix: tests

---------

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
Co-authored-by: Siddhant Rai <siddhant.rai.5686@gmail.com>

tests/test_remaining_coverage.py

@@ -51,38 +51,6 @@ class TestCeleryInitConfigLoggers:
             mock_setup.assert_called()
 
 
-# ---------------------------------------------------------------------------
-# application/core/mongo_db.py  (lines 22-24)
-# ---------------------------------------------------------------------------
-@pytest.mark.unit
-class TestMongoDBCloseClient:
-    def test_close_client_when_connected(self):
-        """Cover lines 22-24: close_client closes and sets to None."""
-        from application.core.mongo_db import MongoDB
-
-        mock_client = MagicMock()
-        original = MongoDB._client
-        try:
-            MongoDB._client = mock_client
-            MongoDB.close_client()
-            mock_client.close.assert_called_once()
-            assert MongoDB._client is None
-        finally:
-            MongoDB._client = original
-
-    def test_close_client_when_not_connected(self):
-        """Cover: close_client is no-op when _client is None."""
-        from application.core.mongo_db import MongoDB
-
-        original = MongoDB._client
-        try:
-            MongoDB._client = None
-            MongoDB.close_client()  # Should not raise
-            assert MongoDB._client is None
-        finally:
-            MongoDB._client = original
-
-
 # ---------------------------------------------------------------------------
 # application/llm/docsgpt_provider.py  (lines 10, 29, 51)
 # ---------------------------------------------------------------------------