feat: add configuration, CI workflow, and Dockerfile updates for Forgejo release sync

- Introduced `config.toml` to manage repository-specific settings.
- Added GitHub Actions workflow for scheduled and manual Forgejo release synchronization.
- Updated Dockerfile for Alpine AOT builds, customized Alpine mirrors, and improved dependency management.

.gitea/workflows/run-forgejo-release-sync.yml

@@ -0,0 +1,54 @@
+name: Run Forgejo Release Sync
+
+on:
+  schedule:
+    - cron: '0 0 * * *'   # daily at 00:00 UTC
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+
+jobs:
+  sync:
+    runs-on: tsv-s1
+    container:
+      image: hub.hamdocker.ir/docker:dind
+      privileged: true
+
+    steps:
+      - name: Switch Alpine to MobinHost mirror
+        run: |
+          ALPINE_VERSION=$(cat /etc/alpine-release | cut -d. -f1,2)
+          echo "https://mirror.mobinhost.com/alpine/v${ALPINE_VERSION}/main" > /etc/apk/repositories
+          echo "https://mirror.mobinhost.com/alpine/v${ALPINE_VERSION}/community" >> /etc/apk/repositories
+
+      - name: Install required tools
+        run: apk add --no-cache git
+
+      - uses: actions/checkout@v7
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+        with:
+          buildkitd-config-inline: |
+            [registry."docker.io"]
+              mirrors = ["https://hub.hamdocker.ir"]
+
+      - name: Build image
+        uses: docker/build-push-action@v7
+        with:
+          context: ForgejoReleaseSync
+          file:    ForgejoReleaseSync/Dockerfile
+          push:    false
+          load:    true
+          tags:    forgejo-release-sync:latest
+
+      - name: Run sync
+        run: |
+          docker run --rm \
+            -e FORGEJO_INSTANCE="${{ secrets.FORGEJO_INSTANCE }}" \
+            -e FORGEJO_TOKEN="${{ secrets.FORGEJO_TOKEN }}" \
+            -e SYNC_CONCURRENCY="${{ vars.SYNC_CONCURRENCY || '3' }}" \
+            -e REPO_CONFIG_FILE="/config/config.toml" \
+            -v "${{ github.workspace }}/config.toml:/config/config.toml:ro" \
+            forgejo-release-sync:latest