Update .gitignore for build artifacts and add CI workflow

Author: proggeramlug

.github/workflows/ci.yml

@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
+      - name: Install dependencies
+        run: bun install --no-save
+        env:
+          BUN_CONFIG_IGNORE_SCRIPTS: true
+
+      - name: Run tests
+        run: bun test

.gitignore

@@ -8,16 +8,22 @@ _perry_failed_stubs.o
 mango
 app
 app_debug
+mango-android
+screenshot-mac
+screenshot-ios-sim
+libhone_editor_android.so
 
 # Runtime data
 *.db
 
 # Node modules
 node_modules/
 
-# IDE
+# IDE / tooling
 .vscode/
 .idea/
+.claude/
+.perry/
 
 # macOS
 .DS_Store
@@ -34,5 +40,14 @@ playstore/screenshots/
 appstore/config.json
 playstore/config.json
 
+# Build artifacts
+*.app/
+mango-android-build/
+Mango-orig
+mango-test
+res/
+__pycache__/
+test-screenshots/
+
 # Internal docs
 mango-product-spec.md