ci: align pipeline on web/mydl pattern

Split the monolithic docker-build/release/test workflows into the shared
_ci-common.yaml + trigger-specific files used on web/mydl:

- pr.yaml       -> PR checks (hadolint + build smoke test)
- main.yaml     -> CI + local build + git semver tag (PAT, triggers tag.yaml)
- tag.yaml      -> CI + build/push :vX.Y.Z and :vX.Y.Z-latest (sole Docker push)
- cron.yaml     -> nightly rebuild of :vX.Y.Z-latest
- _ci-common.yaml -> hadolint + build-test with docker smoke and GHA cache

Docker pushes to :latest on every merge are replaced by versioned,
tested tags. The tag job uses SA_TOKEN_ACTION_PUSH_TAGS (a PAT) so the
tag push actually triggers tag.yaml - GITHUB_TOKEN would not.

.gitea/workflows/_ci-common.yaml

@@ -0,0 +1,34 @@
+name: CI Shared Jobs
+
+on:
+  workflow_call:
+
+jobs:
+  hadolint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+      - uses: hadolint/hadolint-action@06be81baf89a55ffd0e24b8f04a4185738dd3387 # v3.5.0
+        with:
+          dockerfile: pkg/Dockerfile
+          failure-threshold: warning
+
+  build-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4
+      - name: Build (cached)
+        uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
+        with:
+          context: .
+          file: pkg/Dockerfile
+          push: false
+          load: true
+          tags: ci-image:${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+      - name: Smoke test (container starts)
+        run: docker run --rm --name mcp-ics-smoke-$(hostname) ci-image:${{ github.sha }} python -c "import src.server"

.gitea/workflows/cron.yaml

@@ -0,0 +1,46 @@
+name: Nightly Rebuild
+on:
+  schedule:
+    - cron: '0 0 * * *'
+jobs:
+  ci:
+    uses: ./.gitea/workflows/_ci-common.yaml
+    secrets: inherit
+  build-push:
+    needs: [ci]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+        with:
+          fetch-depth: 0
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4
+      - name: Login to Docker Hub
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - id: get-latest-tag
+        name: Get latest tag
+        run: |
+          TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
+          echo "tag=$TAG" >> $GITHUB_OUTPUT
+      - id: meta
+        name: Docker metadata
+        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6
+        with:
+          images: jcabillot/mcp-ics
+          tags: |
+            type=raw,value=${{ steps.get-latest-tag.outputs.tag }}-latest,enable=${{ steps.get-latest-tag.outputs.tag != '' }}
+      - name: Build and push
+        uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
+        with:
+          context: .
+          file: pkg/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          pull: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.gitea/workflows/main.yaml

@@ -0,0 +1,46 @@
+name: Main Release
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+jobs:
+  ci:
+    uses: ./.gitea/workflows/_ci-common.yaml
+    secrets: inherit
+  build:
+    needs: [ci]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4
+      - name: Build (cached)
+        uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
+        with:
+          context: .
+          file: pkg/Dockerfile
+          push: false
+          load: true
+          tags: jcabillot/mcp-ics:${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+  tag:
+    needs: [build]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+        with:
+          fetch-depth: 0
+      - name: Configure git auth
+        run: |
+          git remote set-url origin "https://x-access-token:${{ secrets.SA_TOKEN_ACTION_PUSH_TAGS }}@scm.cabillot.eu/perso/mcp-ics.git"
+      - name: Bump version and push tag
+        uses: anothrNick/github-tag-action@4ed44965e0db8dab2b466a16da04aec3cc312fd8 # v1.75.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.SA_TOKEN_ACTION_PUSH_TAGS }}
+          DEFAULT_BUMP: patch
+          RELEASE_BRANCHES: main
+          WITH_V: true
+          GIT_API_TAGGING: false

.gitea/workflows/pr.yaml

@@ -0,0 +1,12 @@
+name: PR Checks
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: [main]
+concurrency:
+  group: pr-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  ci:
+    uses: ./.gitea/workflows/_ci-common.yaml
+    secrets: inherit

.gitea/workflows/release.yaml

@@ -1,23 +0,0 @@
-name: Release
-
-on:
-  push:
-    branches: [main]
-
-jobs:
-  tag:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
-        with:
-          fetch-depth: 0
-
-      - name: Bump version and push tag
-        uses: anothrNick/github-tag-action@4ed44965e0db8dab2b466a16da04aec3cc312fd8 # v1.75.0
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          DEFAULT_BUMP: patch
-          RELEASE_BRANCHES: main
-          WITH_V: true
-          GIT_API_TAGGING: false

.gitea/workflows/tag.yaml

@@ -1,38 +1,32 @@
-name: Docker Build and Push
+name: Tag Release
-
 on:
   push:
-    branches: [main]
+    tags: ['*']
-  schedule:
-    - cron: '0 0 * * *'
-
 jobs:
-  build:
+  ci:
+    uses: ./.gitea/workflows/_ci-common.yaml
+    secrets: inherit
+  build-push:
+    needs: [ci]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
-        with:
-          fetch-depth: 0
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4
-
       - name: Login to Docker Hub
         uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-
+      - id: meta
-      - name: Docker metadata
+        name: Docker metadata
-        id: meta
         uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6
         with:
           images: jcabillot/mcp-ics
           tags: |
-            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+            type=ref,event=tag
-            type=sha
+            type=ref,event=tag,suffix=-latest
-
       - name: Build and push
         uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
         with:
@@ -42,3 +36,5 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           pull: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.gitea/workflows/test.yaml

@@ -1,23 +0,0 @@
-name: Test
-
-on:
-  pull_request:
-    branches: [main]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4
-
-      - name: Build
-        uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
-        with:
-          context: .
-          file: pkg/Dockerfile
-          push: false
-          pull: true