ci: speed up validation pipelines

Run affected CI checks in parallel and skip unrelated backend or frontend work while retaining workflow lint.

Start release binary builds after release metadata is available, while keeping image assembly, packaging, and publication gated by quality checks.

Co-authored-by: Codex <noreply@openai.com>

.github/workflows/_quality.yml

@@ -12,12 +12,23 @@ on:
         required: false
         default: false
         type: boolean
+      run_backend:
+        description: Run backend quality checks
+        required: false
+        default: true
+        type: boolean
+      run_frontend:
+        description: Run frontend quality checks
+        required: false
+        default: true
+        type: boolean
 
 permissions:
   contents: read
 
 jobs:
   backend:
+    if: inputs.run_backend
     runs-on: ubuntu-latest
     timeout-minutes: 30
     env:
@@ -77,6 +88,7 @@ jobs:
         run: cargo test --test main --locked
 
   frontend:
+    if: inputs.run_frontend
     runs-on: ubuntu-latest
     timeout-minutes: 15
     env:

.github/workflows/ci.yml

@@ -20,6 +20,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     outputs:
+      backend: ${{ steps.filter.outputs.backend }}
+      frontend: ${{ steps.filter.outputs.frontend }}
       container: ${{ steps.filter.outputs.container }}
     steps:
       - name: Checkout
@@ -28,11 +30,18 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
           fetch-depth: 0
 
-      - name: Detect container changes
+      - name: Detect affected checks
         id: filter
         uses: dorny/paths-filter@7b450fff21473bca461d4b92ce414b9d0420d706 # v4.0.2
         with:
           filters: |
+            backend:
+              - 'backend/**'
+              - 'release/version.yaml'
+              - '.github/workflows/**'
+            frontend:
+              - 'frontend/**'
+              - '.github/workflows/**'
             container:
               - 'backend/**'
               - 'frontend/**'
@@ -43,12 +52,15 @@ jobs:
               - '.github/workflows/ci.yml'
 
   quality:
+    needs: changes
     uses: ./.github/workflows/_quality.yml
     with:
       ref: ${{ github.event.pull_request.head.sha || github.sha }}
+      run_backend: ${{ needs.changes.outputs.backend == 'true' }}
+      run_frontend: ${{ needs.changes.outputs.frontend == 'true' }}
 
   container:
-    needs: [changes, quality]
+    needs: changes
     if: needs.changes.outputs.container == 'true'
     permissions:
       contents: read

.github/workflows/release.yml

@@ -165,7 +165,7 @@ jobs:
 
   build-docker-binary:
     name: build-docker-binary (${{ matrix.os }}-${{ matrix.arch }})
-    needs: [release-info, quality]
+    needs: release-info
     strategy:
       fail-fast: false
       matrix: ${{ fromJson(needs.release-info.outputs.docker_matrix) }}
@@ -225,7 +225,7 @@ jobs:
 
   build-binary:
     name: build-binary (${{ matrix.os }}-${{ matrix.arch }})
-    needs: [release-info, quality]
+    needs: release-info
     strategy:
       fail-fast: false
       matrix: ${{ fromJson(needs.release-info.outputs.non_docker_matrix) }}