[NX-501 Issue] Replace GitHub Actions postgres service with Docker container.

The PostgreSQL service in the GitHub Actions workflow was replaced by a Docker container for better control and flexibility. Additional steps were added to manage the container lifecycle, including starting, logging, and cleaning up. Also, updated the app version from 0.2.4 to 0.2.5.

.github/workflows/e2e-api-smoke.yml

@@ -17,21 +17,6 @@ jobs:
     name: Core API E2E Smoke
     runs-on: ubuntu-latest
 
-    services:
-      postgres:
-        image: postgres:16
-        env:
-          POSTGRES_DB: nexapg
-          POSTGRES_USER: nexapg
-          POSTGRES_PASSWORD: nexapg
-        ports:
-          - 5432:5432
-        options: >-
-          --health-cmd "pg_isready -U nexapg -d nexapg"
-          --health-interval 5s
-          --health-timeout 5s
-          --health-retries 20
-
     env:
       APP_NAME: NexaPG Monitor
       ENVIRONMENT: test
@@ -62,6 +47,17 @@ jobs:
         with:
           python-version: "3.13"
 
+      - name: Start PostgreSQL container
+        run: |
+          docker rm -f nexapg-e2e-pg >/dev/null 2>&1 || true
+          docker run -d \
+            --name nexapg-e2e-pg \
+            -e POSTGRES_DB=nexapg \
+            -e POSTGRES_USER=nexapg \
+            -e POSTGRES_PASSWORD=nexapg \
+            -p 5432:5432 \
+            postgres:16
+
       - name: Install backend dependencies + test tooling
         run: |
           python -m pip install --upgrade pip
@@ -94,6 +90,12 @@ jobs:
           asyncio.run(wait_for_db())
           PY
 
+      - name: Show PostgreSQL container status
+        if: ${{ always() }}
+        run: |
+          docker ps -a --filter "name=nexapg-e2e-pg"
+          docker logs --tail=80 nexapg-e2e-pg || true
+
       - name: Run Alembic migrations
         working-directory: backend
         run: alembic upgrade head
@@ -102,3 +104,7 @@ jobs:
         env:
           PYTHONPATH: backend
         run: pytest -q backend/tests/e2e/test_api_smoke.py
+
+      - name: Cleanup PostgreSQL container
+        if: ${{ always() }}
+        run: docker rm -f nexapg-e2e-pg >/dev/null 2>&1 || true

backend/app/core/config.py

@@ -2,7 +2,7 @@ from functools import lru_cache
 from pydantic import field_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 
-NEXAPG_VERSION = "0.2.4"
+NEXAPG_VERSION = "0.2.5"
 
 
 class Settings(BaseSettings):