refactor: trigger release builds on release creation instead of workflow_dispatch

- Change trigger from workflow_dispatch to release:created
- Remove create-release job (tag and release created via GitHub UI)
- All three build jobs now run in parallel immediately
- Use github.event.release.tag_name for tag reference

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -1,73 +1,12 @@
 name: Release
 
 on:
-  workflow_dispatch:
-    inputs:
-      tag:
-        description: "Release tag (e.g. v0.2.0)"
-        required: true
-        type: string
-      prerelease:
-        description: "Mark as pre-release"
-        required: false
-        type: boolean
-        default: false
-      draft:
-        description: "Create as draft"
-        required: false
-        type: boolean
-        default: false
+  release:
+    types: [created]
 
 jobs:
-  create-release:
-    name: Create Tag & Release
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Validate version
-        env:
-          TAG_VERSION: ${{ inputs.tag }}
-        run: |
-          FILE_VERSION=$(cat VERSION)
-          TAG_VERSION="${TAG_VERSION#v}"
-          if [ "$FILE_VERSION" != "$TAG_VERSION" ]; then
-            echo "::error::Tag ($TAG_VERSION) ≠ VERSION file ($FILE_VERSION). Run version-bump first."
-            exit 1
-          fi
-
-      - name: Create and push tag
-        env:
-          RELEASE_TAG: ${{ inputs.tag }}
-        run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
-          git tag -a "$RELEASE_TAG" -m "Release $RELEASE_TAG"
-          git push origin "$RELEASE_TAG"
-
-      - name: Create release with generated notes
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          RELEASE_TAG: ${{ inputs.tag }}
-          IS_DRAFT: ${{ inputs.draft }}
-          IS_PRERELEASE: ${{ inputs.prerelease }}
-        run: |
-          FLAGS=""
-          if [ "$IS_DRAFT" = "true" ]; then FLAGS="$FLAGS --draft"; fi
-          if [ "$IS_PRERELEASE" = "true" ]; then FLAGS="$FLAGS --prerelease"; fi
-          gh release create "$RELEASE_TAG" \
-            --generate-notes \
-            --title "$RELEASE_TAG" \
-            $FLAGS
-
   build-go:
     name: Go Binaries
-    needs: create-release
     runs-on: ubuntu-latest
     permissions:
       contents: write
@@ -76,7 +15,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          ref: ${{ inputs.tag }}
+          ref: ${{ github.event.release.tag_name }}
 
       - name: Setup Go
         uses: actions/setup-go@v5
@@ -89,7 +28,7 @@ jobs:
       - name: Upload binaries to release
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          RELEASE_TAG: ${{ inputs.tag }}
+          RELEASE_TAG: ${{ github.event.release.tag_name }}
         run: |
           gh release upload "$RELEASE_TAG" \
             build/clawdroid-linux-amd64 \
@@ -98,7 +37,6 @@ jobs:
 
   build-android-termux:
     name: Android Termux APK
-    needs: create-release
     runs-on: ubuntu-latest
     permissions:
       contents: write
@@ -109,7 +47,7 @@ jobs:
       - name: Checkout tag
         uses: actions/checkout@v4
         with:
-          ref: ${{ inputs.tag }}
+          ref: ${{ github.event.release.tag_name }}
 
       - name: Set up JDK
         uses: actions/setup-java@v4
@@ -140,7 +78,7 @@ jobs:
       - name: Upload APK to release
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          RELEASE_TAG: ${{ inputs.tag }}
+          RELEASE_TAG: ${{ github.event.release.tag_name }}
         run: |
           mv app/build/outputs/apk/termux/release/app-termux-release.apk \
              app/build/outputs/apk/termux/release/clawdroid-noembedded-"$RELEASE_TAG".apk
@@ -149,7 +87,6 @@ jobs:
 
   build-android-embedded:
     name: Android Embedded APKs
-    needs: create-release
     runs-on: ubuntu-latest
     permissions:
       contents: write
@@ -157,7 +94,7 @@ jobs:
       - name: Checkout tag
         uses: actions/checkout@v4
         with:
-          ref: ${{ inputs.tag }}
+          ref: ${{ github.event.release.tag_name }}
 
       - name: Setup Go
         uses: actions/setup-go@v5
@@ -199,7 +136,7 @@ jobs:
       - name: Upload APKs to release
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          RELEASE_TAG: ${{ inputs.tag }}
+          RELEASE_TAG: ${{ github.event.release.tag_name }}
         working-directory: android/app/build/outputs/apk/embedded/release
         run: |
           mv app-embedded-arm64-v8a-release.apk     clawdroid-"$RELEASE_TAG"-arm64-v8a.apk