Feature: Add PR review comments and resolution, improve AI prompt handling (#790)

* feat: Add PR review comments and resolution endpoints, improve prompt handling

* Feature: File Editor (#789)

* feat: Add file management feature

* feat: Add auto-save functionality to file editor

* fix: Replace HardDriveDownload icon with Save icon for consistency

* fix: Prevent recursive copy/move and improve shell injection prevention

* refactor: Extract editor settings form into separate component

* ```
fix: Improve error handling and stabilize async operations

- Add error event handlers to GraphQL process spawns to prevent unhandled rejections
- Replace execAsync with execFile for safer command execution and better control
- Fix timeout cleanup in withTimeout generator to prevent memory leaks
- Improve outdated comment detection logic by removing redundant condition
- Use resolveModelString for consistent model string handling
- Replace || with ?? for proper falsy value handling in dialog initialization
- Add comments clarifying branch name resolution logic for local branches with slashes
- Add catch handler for project selection to handle async errors gracefully
```

* refactor: Extract PR review comments logic to dedicated service

* fix: Improve robustness and UX for PR review and file operations

* fix: Consolidate exec utilities and improve type safety

* refactor: Replace ScrollArea with div and improve file tree layout

apps/server/src/lib/exec-utils.ts

@@ -0,0 +1,37 @@
+/**
+ * Shared execution utilities
+ *
+ * Common helpers for spawning child processes with the correct environment.
+ * Used by both route handlers and service layers.
+ */
+
+import { createLogger } from '@automaker/utils';
+
+const logger = createLogger('ExecUtils');
+
+// Extended PATH to include common tool installation locations
+export const extendedPath = [
+  process.env.PATH,
+  '/opt/homebrew/bin',
+  '/usr/local/bin',
+  '/home/linuxbrew/.linuxbrew/bin',
+  `${process.env.HOME}/.local/bin`,
+]
+  .filter(Boolean)
+  .join(':');
+
+export const execEnv = {
+  ...process.env,
+  PATH: extendedPath,
+};
+
+export function getErrorMessage(error: unknown): string {
+  if (error instanceof Error) {
+    return error.message;
+  }
+  return String(error);
+}
+
+export function logError(error: unknown, context: string): void {
+  logger.error(`${context}:`, error);
+}