feat: Add GitHub Actions workflows for Docker build, publish, documentation deployment, and quality checks

- Implemented `docker-build.yml` for building and pushing Docker images with multi-platform support, Trivy security scanning, and conditional builds based on commit messages.
- Created `docker-publish.yml` for streamlined Docker image publishing with Trivy vulnerability scanning on push events.
- Added `docs.yml` to automate documentation deployment to GitHub Pages, including a custom HTML structure and markdown conversion.
- Introduced `propagate-changes.yml` to automate PR creation for synchronizing changes between main, development, and feature branches.
- Established `quality-checks.yml` for running backend (Go) and frontend (React) quality checks, including tests and linting.
- Developed `release.yml` for generating changelogs and creating GitHub releases upon version tag pushes.
- Set up `renovate.yml` for automated dependency updates on a daily schedule.

.github/workflows/auto-add-to-project.yml

@@ -0,0 +1,32 @@
+name: Auto-add issues and PRs to Project
+
+on:
+  issues:
+    types: [opened, reopened]
+  pull_request:
+    types: [opened, reopened]
+
+jobs:
+  add-to-project:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Determine project URL presence
+        id: project_check
+        run: |
+          if [ -n "${{ secrets.PROJECT_URL }}" ]; then
+            echo "has_project=true" >> $GITHUB_OUTPUT
+          else
+            echo "has_project=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Add issue or PR to project
+        if: steps.project_check.outputs.has_project == 'true'
+        uses: actions/add-to-project@244f685bbc3b7adfa8466e08b698b5577571133e # v1.0.2
+        continue-on-error: true
+        with:
+          project-url: ${{ secrets.PROJECT_URL }}
+          github-token: ${{ secrets.ADD_TO_PROJECT_PAT }}
+
+      - name: Skip summary
+        if: steps.project_check.outputs.has_project == 'false'
+        run: echo "PROJECT_URL secret missing; skipping project assignment." >> $GITHUB_STEP_SUMMARY