Simplify workflows: remove composite action, fallback to JBang on cache miss

- build-generator.yml: build JAR+AOT and save to actions cache directly
- deploy.yml: restore from cache, use JAR+AOT if hit, fallback to JBang if miss
- Remove .github/actions/build-generator composite action

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: brunoborges

.github/actions/build-generator/action.yml

@@ -5,7 +5,6 @@ on:
     branches: [main]
     paths:
       - '.github/workflows/build-generator.yml'
-      - '.github/actions/build-generator/**'
       - 'html-generators/generate.java'
   schedule:
     - cron: '0 6 * * 1'   # every Monday at 06:00 UTC
@@ -20,4 +19,24 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: ./.github/actions/build-generator
+
+      - uses: actions/setup-java@v5
+        with:
+          distribution: 'temurin'
+          java-version: '25'
+
+      - uses: jbangdev/setup-jbang@main
+
+      - name: Build fat JAR
+        run: jbang export fatjar --force --output html-generators/generate.jar html-generators/generate.java
+
+      - name: Build AOT cache
+        run: java -XX:AOTCacheOutput=html-generators/generate.aot -jar html-generators/generate.jar
+
+      - name: Save to cache
+        uses: actions/cache/save@v5
+        with:
+          path: |
+            html-generators/generate.jar
+            html-generators/generate.aot
+          key: generator-${{ hashFiles('html-generators/generate.java') }}

.github/workflows/build-generator.yml

@@ -34,11 +34,27 @@ jobs:
           distribution: 'temurin'
           java-version: '25'
 
-      - uses: ./.github/actions/build-generator
+      - name: Restore cached JAR and AOT
+        id: cache-restore
+        uses: actions/cache/restore@v5
+        with:
+          path: |
+            html-generators/generate.jar
+            html-generators/generate.aot
+          key: generator-${{ hashFiles('html-generators/generate.java') }}
 
-      - name: Generate HTML pages and snippets.json
+      - name: Generate with cached JAR + AOT
+        if: steps.cache-restore.outputs.cache-hit == 'true'
         run: java -XX:AOTCache=html-generators/generate.aot -jar html-generators/generate.jar
 
+      - name: Setup JBang (cache miss)
+        if: steps.cache-restore.outputs.cache-hit != 'true'
+        uses: jbangdev/setup-jbang@main
+
+      - name: Generate with JBang (cache miss)
+        if: steps.cache-restore.outputs.cache-hit != 'true'
+        run: jbang html-generators/generate.java
+
       - name: Setup Pages
         uses: actions/configure-pages@v5