Add: github action to pack automatically

.github/workflows/pack.yaml

@@ -0,0 +1,19 @@
+name: pack
+on: push
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+        with:
+          ref: "smallkai"
+      - name: pack
+        run: make all
+      - name: upload artifact to github
+        uses: actions/upload-artifact@v4
+        with:
+          name: Alas
+          path: pack/Alas.zip
+          if-no-files-found: error
+