ci: remove GitHub Actions workflow - using Forgejo CI exclusively

- Remove build-and-deploy-forgejo.yml from GitHub Actions
- Forgejo CI at ci.nxtgauge.com now handles all builds and deployments
- All images pushed to Forgejo registry (ci.nxtgauge.com/ashwin/*)

.github/workflows/build-and-deploy-forgejo.yml

@@ -1,81 +0,0 @@
-name: build-and-deploy-forgejo
-
-on:
-  push:
-    branches:
-      - main
-      - high-performance
-  workflow_dispatch:
-
-permissions:
-  contents: read
-  packages: write
-
-env:
-  IMAGE_NAME: ci.nxtgauge.com/ashwin/nxtgauge-ai-assistant
-  K8S_NAMESPACE: nxtgauge-ai
-  DEPLOYMENT_NAME: nxtgauge-ai-assistant
-  CONTAINER_NAME: ai-assistant
-  APP_KEY: ai-assistant
-  GITOPS_REPO: Traceworks2023/nxtgauge-gitops
-
-jobs:
-  build-deploy:
-    runs-on: [self-hosted, linux, x64, ubuntu-latest, docker-ready]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Login to Forgejo Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ci.nxtgauge.com
-          username: ${{ secrets.FORGEJO_USERNAME }}
-          password: ${{ secrets.FORGEJO_TOKEN }}
-
-      - name: Build and push image
-        id: build
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          file: Dockerfile
-          push: true
-          platforms: linux/amd64
-          tags: ${{ env.IMAGE_NAME }}:${{ github.sha }}
-
-      - name: Sync GitOps release
-        env:
-          GITOPS_TOKEN: ${{ secrets.DEPLOY_GITHUB_TOKEN }}
-        run: |
-          set -euo pipefail
-          image_ref="${IMAGE_NAME}@${{ steps.build.outputs.digest }}"
-          workdir="$(mktemp -d /tmp/nxtgauge-gitops.XXXXXX)"
-          trap 'rm -rf "$workdir"' EXIT
-          git clone "https://x-access-token:${GITOPS_TOKEN}@github.com/${GITOPS_REPO}.git" "$workdir"
-          cd "$workdir"
-          git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
-          for attempt in 1 2 3 4 5; do
-            git fetch origin main
-            git reset --hard origin/main
-            ./scripts/set-app-release.sh "$APP_KEY" "$image_ref"
-            if git diff --quiet; then
-              echo "GitOps repo already up to date."
-              exit 0
-            fi
-            git add apps scripts/set-app-release.sh
-            git commit -m "chore(gitops): deploy ${APP_KEY}@${{ github.sha }}"
-            if git push origin HEAD:main; then
-              exit 0
-            fi
-            echo "GitOps push race on attempt ${attempt}, retrying..."
-            git reset --hard origin/main
-            sleep $((attempt * 2))
-          done
-          echo "Failed to update GitOps after multiple attempts."
-          exit 1