fix: quote sh -c script in adb shell to prevent argument splitting

adb shell concatenates all arguments with spaces into a single string
for the remote shell. Without quoting, the && in the mkdir/cat script
was interpreted as a command separator, causing mkdir to run with no
arguments ("mkdir: Needs 1 argument").

Wrapping the script in single quotes ensures the remote device shell
passes the entire command as one argument to sh -c.

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

Author: thymikee

src/daemon/__tests__/runtime-hints.test.ts

@@ -208,7 +208,7 @@ test('applyRuntimeHintsToApp writes React Native Android dev prefs', async () =>
     const stdinPayload = await fs.readFile(stdinFilePath, 'utf8');
     assert.match(loggedArgs, /shell run-as com\.example\.demo cat shared_prefs\/ReactNativeDevPrefs\.xml/);
     assert.match(loggedArgs, /shell run-as com\.example\.demo sh -c/);
-    assert.equal(script, 'mkdir -p shared_prefs && cat > shared_prefs/ReactNativeDevPrefs.xml');
+    assert.equal(script, "'mkdir -p shared_prefs && cat > shared_prefs/ReactNativeDevPrefs.xml'");
     assert.match(stdinPayload, /<string name="keep">value<\/string>/);
     assert.match(stdinPayload, /<string name="debug_http_host">10\.0\.0\.10:8082<\/string>/);
     assert.match(stdinPayload, /<boolean name="dev_server_https" value="true" \/>/);

src/daemon/runtime-hints.ts

@@ -150,7 +150,7 @@ async function writeAndroidDevPrefs(device: DeviceInfo, packageName: string, xml
   }
 
   const script = `mkdir -p shared_prefs && cat > ${ANDROID_DEV_PREFS_PATH}`;
-  const writeArgs = adbArgs(device, ['shell', 'run-as', packageName, 'sh', '-c', script]);
+  const writeArgs = adbArgs(device, ['shell', 'run-as', packageName, 'sh', '-c', `'${script}'`]);
   try {
     await runCmd('adb', writeArgs, { stdin: xml.trimEnd() });
   } catch (error) {