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>

deployment/docker-compose-dev.yaml

@@ -6,14 +6,21 @@ services:
     ports:
       - 6379:6379
 
-  mongo:
-    image: mongo:6
+  postgres:
+    image: postgres:16-alpine
+    environment:
+      - POSTGRES_USER=docsgpt
+      - POSTGRES_PASSWORD=docsgpt
+      - POSTGRES_DB=docsgpt
     ports:
-      - 27017:27017
+      - "5432:5432"
     volumes:
-      - mongodb_data_container:/data/db
-
-
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U docsgpt -d docsgpt"]
+      interval: 5s
+      timeout: 5s
+      retries: 10
 
 volumes:
-  mongodb_data_container:
+  postgres_data: