feat: sign Android APK and generate icons from logo.png or favicon.ico

Co-authored-by: Cursor <cursoragent@cursor.com>

.github/scripts/patch-android-gradle.mjs

@@ -0,0 +1,61 @@
+import fs from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const root = path.resolve(__dirname, "../..");
+const gradlePath = path.join(
+  root,
+  "template/src-tauri/gen/android/app/build.gradle.kts",
+);
+
+if (!fs.existsSync(gradlePath)) {
+  console.log("Android gradle file not found, skipping patch");
+  process.exit(0);
+}
+
+let content = fs.readFileSync(gradlePath, "utf8");
+
+if (content.includes("signingConfigs")) {
+  console.log("Android gradle already has signingConfigs");
+  process.exit(0);
+}
+
+if (!content.includes("import java.util.Properties")) {
+  content = content.replace(
+    /^(import .+\n)+/m,
+    (block) => `${block}import java.util.Properties\nimport java.io.FileInputStream\n`,
+  );
+}
+
+const signingBlock = `
+    signingConfigs {
+        create("release") {
+            val keystorePropertiesFile = rootProject.file("keystore.properties")
+            val keystoreProperties = Properties()
+            if (keystorePropertiesFile.exists()) {
+                keystoreProperties.load(FileInputStream(keystorePropertiesFile))
+            }
+
+            keyAlias = keystoreProperties["keyAlias"] as String
+            keyPassword = keystoreProperties["password"] as String
+            storeFile = file(keystoreProperties["storeFile"] as String)
+            storePassword = keystoreProperties["password"] as String
+        }
+    }
+`;
+
+if (content.includes("buildTypes {")) {
+  content = content.replace("buildTypes {", `${signingBlock}\n    buildTypes {`);
+}
+
+if (!content.includes('signingConfig = signingConfigs.getByName("release")')) {
+  content = content.replace(
+    /getByName\("release"\)\s*\{/,
+    `getByName("release") {
+            signingConfig = signingConfigs.getByName("release")`,
+  );
+}
+
+fs.writeFileSync(gradlePath, content);
+console.log("Patched Android gradle signing configuration");