Add CI/CD pipeline, logging enhancements, and release management

- Create a GitHub Actions workflow for testing with Python 3.12 and 3.13.
- Update Makefile to include release management commands and pipeline checks.
- Document the CI/CD pipeline structure and usage in PIPELINE.md.
- Add structlog for structured logging and enhance logging utilities.
- Implement release management script for automated versioning and tagging.
- Modify logging configuration to support structured logging and improved formatting.
- Update dependencies in pyproject.toml and poetry.lock to include structlog.
- Enhance access logging in server and middleware to include structured data.

.gitea/workflows/pipeline.yaml

@@ -0,0 +1,49 @@
+name: CI/CD Pipeline
+run-name: ${{ gitea.actor }} started full pipeline
+on:
+  push:
+    branches: ["*"]
+    tags: ["v*"]
+  pull_request:
+    branches: ["dev", "master", "main"]
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Release version (e.g., v0.6.1)'
+        required: false
+        default: ''
+
+jobs:
+  lint:
+    uses: ./.gitea/workflows/lint.yaml
+
+  test:
+    if: github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/master' || github.ref == 'refs/heads/main' || github.event_name == 'pull_request'
+    needs: lint
+    uses: ./.gitea/workflows/test.yaml
+
+  build-and-release:
+    if: startsWith(github.ref, 'refs/tags/v') || github.event_name == 'workflow_dispatch'
+    needs: [lint, test]
+    uses: ./.gitea/workflows/release.yaml
+    with:
+      version: ${{ github.event.inputs.version }}
+
+  notify:
+    runs-on: ubuntu-latest
+    needs: [lint, test, build-and-release]
+    if: always()
+    steps:
+      - name: Pipeline Summary
+        run: |
+          echo "## Pipeline Execution Results" >> $GITHUB_STEP_SUMMARY
+          echo "" >> $GITHUB_STEP_SUMMARY
+          echo "| Stage | Status |" >> $GITHUB_STEP_SUMMARY
+          echo "|-------|--------|" >> $GITHUB_STEP_SUMMARY
+          echo "| Linting | ${{ needs.lint.result == 'success' && 'Success' || 'Failed' }} |" >> $GITHUB_STEP_SUMMARY
+          echo "| Tests | ${{ needs.test.result == 'success' && 'Success' || needs.test.result == 'skipped' && 'Skipped' || 'Failed' }} |" >> $GITHUB_STEP_SUMMARY
+          echo "| Build and Release | ${{ needs.build-and-release.result == 'success' && 'Success' || needs.build-and-release.result == 'skipped' && 'Skipped' || 'Failed' }} |" >> $GITHUB_STEP_SUMMARY
+          echo "" >> $GITHUB_STEP_SUMMARY
+          if [[ "${{ needs.build-and-release.result }}" == "success" ]]; then
+            echo "**Draft release created!** Check and publish in Gitea interface." >> $GITHUB_STEP_SUMMARY
+          fi