Create GitHub releases for pre-built OpenCode CLI and update Dockerfile

.github/workflows/build-opencode-cli-docker.yml

@@ -11,7 +11,7 @@ on:
   workflow_dispatch:
 
 permissions:
-  contents: read
+  contents: write
   actions: read
 
 jobs:
@@ -42,6 +42,27 @@ jobs:
           path: opencode/packages/opencode/dist/opencode-linux-x64
           retention-days: 1
 
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: opencode-cli-${{ github.sha }}
+          release_name: OpenCode CLI ${{ github.sha }}
+          draft: false
+          prerelease: false
+
+      - name: Upload Release Asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: opencode/packages/opencode/dist/opencode-linux-x64/bin/opencode
+          asset_name: opencode-linux-x64
+          asset_content_type: application/octet-stream
+
       - name: Cleanup old CLI artifacts
         uses: actions/github-script@v7
         with: