fix(ci): test-backend can't resolve postgres service DNS on Gitea runner

The Gitea deploy workflow's test-backend job ran inside a container:
(gitea/runner-images:ubuntu-latest) and addressed the DB by its Docker
service name (POSTGRES_HOST: postgres). The Gitea act_runner does not
reliably wire up service-container DNS, so every test ERROR'd at setup
with "could not translate host name postgres to address: Temporary
failure in name resolution" — the autouse conftest migration fixture
(connects to settings.POSTGRES_HOST) failed before any test ran.

Fix: drop the container: block so the job runs directly on the runner
host, add ports: mappings to the postgres + redis services, and connect
via localhost — mirroring the proven .github/workflows/test.yml pattern.

If the job is ever moved back into a container:, revert POSTGRES_HOST to
'postgres' and drop the ports: (Docker service-name DNS resolves inside
a container job on runners that link services correctly).

Author: constLiakos

.gitea/workflows/deploy.yml

@@ -43,23 +43,24 @@ jobs:
   test-backend:
     name: Run Backend Pytest Suite
     runs-on: ubuntu-latest
-    container:
-      # Pulled from Docker Hub; docker.gitea.com times out from the runner host.
-      image: gitea/runner-images:ubuntu-latest
     services:
       postgres:
         image: timescale/timescaledb:latest-pg14
         env:
           POSTGRES_DB: health_assistant_test
           POSTGRES_USER: admin
           POSTGRES_PASSWORD: password
+        ports:
+          - 5432:5432
         options: >-
           --health-cmd "pg_isready -U admin -d health_assistant_test"
           --health-interval 10s
           --health-timeout 5s
           --health-retries 5
       redis:
         image: redis:7-alpine
+        ports:
+          - 6379:6379
         options: >-
           --health-cmd "redis-cli ping"
           --health-interval 10s
@@ -85,12 +86,18 @@ jobs:
         env:
           # Configure via parts (not DATABASE_URL) so config.py assembles the
           # URL and the b13 security-hygiene tests exercise POSTGRES_PASSWORD.
+          # No `container:` block → the job runs directly on the runner host,
+          # so services are reached via localhost (their published ports),
+          # NOT the Docker service-name DNS ("postgres") which the Gitea
+          # act_runner does not reliably resolve. Mirrors .github/workflows/
+          # test.yml. If this job is ever moved back into a `container:`,
+          # switch POSTGRES_HOST back to "postgres" + drop the `ports:`.
           POSTGRES_USER: admin
           POSTGRES_PASSWORD: password
-          POSTGRES_HOST: postgres
+          POSTGRES_HOST: localhost
           POSTGRES_PORT: 5432
           POSTGRES_DB: health_assistant_test
-          REDIS_URL: redis://redis:6379
+          REDIS_URL: redis://localhost:6379
         run: |
           cd backend
           # Mirror production Docker PYTHONPATH (/app/backend:/app) so the