ci: add manual trigger for build workflow

.github/workflows/build-binaries.yml

@@ -4,6 +4,12 @@ on:
   push:
     tags:
       - 'v*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Tag to build (e.g., v0.12.0)'
+        required: true
+        type: string
 
 permissions:
   contents: write
@@ -11,9 +17,13 @@ permissions:
 jobs:
   build:
     runs-on: ubuntu-latest
+    env:
+      RELEASE_TAG: ${{ github.event.inputs.tag || github.ref_name }}
     steps:
       - name: Checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          ref: ${{ env.RELEASE_TAG }}
 
       - name: Setup Bun
         uses: oven-sh/setup-bun@4bc047ad259df6fc24a6c9b0f9a0cb08cf17fbe5 # v2.0.1
@@ -83,14 +93,38 @@ jobs:
           # Windows x64 (zip)
           zip -r pi-windows-x64.zip pi-windows-x64.exe package.json README.md CHANGELOG.md theme/
 
-      - name: Upload to GitHub Release
+      - name: Extract changelog for this version
+        id: changelog
+        run: |
+          VERSION="${RELEASE_TAG}"
+          VERSION="${VERSION#v}"  # Remove 'v' prefix
+          
+          # Extract changelog section for this version
+          cd packages/coding-agent
+          awk "/^## \[${VERSION}\]/{flag=1; next} /^## \[/{flag=0} flag" CHANGELOG.md > /tmp/release-notes.md
+          
+          # If empty, use a default message
+          if [ ! -s /tmp/release-notes.md ]; then
+            echo "Release ${VERSION}" > /tmp/release-notes.md
+          fi
+
+      - name: Create GitHub Release and upload binaries
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           cd packages/coding-agent/binaries
           
-          # Upload all archives to the release
-          gh release upload "${{ github.ref_name }}" \
+          # Create release with changelog notes (or update if exists)
+          gh release create "${RELEASE_TAG}" \
+            --title "${RELEASE_TAG}" \
+            --notes-file /tmp/release-notes.md \
+            pi-darwin-arm64.tar.gz \
+            pi-darwin-x64.tar.gz \
+            pi-linux-x64.tar.gz \
+            pi-linux-arm64.tar.gz \
+            pi-windows-x64.zip \
+            2>/dev/null || \
+          gh release upload "${RELEASE_TAG}" \
             pi-darwin-arm64.tar.gz \
             pi-darwin-x64.tar.gz \
             pi-linux-x64.tar.gz \