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- Improve outdated comment detection logic by removing redundant condition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/ui/src/components/layout/sidebar/hooks/use-project-picker.ts

@@ -6,7 +6,7 @@ interface UseProjectPickerProps {
   currentProject: Project | null;
   isProjectPickerOpen: boolean;
   setIsProjectPickerOpen: (value: boolean | ((prev: boolean) => boolean)) => void;
-  setCurrentProject: (project: Project) => void;
+  setCurrentProject: (project: Project) => void | Promise<void>;
 }
 
 export function useProjectPicker({
@@ -92,9 +92,9 @@ export function useProjectPicker({
   }, [selectedProjectIndex, isProjectPickerOpen, filteredProjects, scrollToProject]);
 
   // Handle selecting the currently highlighted project
-  const selectHighlightedProject = useCallback(() => {
+  const selectHighlightedProject = useCallback(async () => {
     if (filteredProjects.length > 0 && selectedProjectIndex < filteredProjects.length) {
-      setCurrentProject(filteredProjects[selectedProjectIndex]);
+      await setCurrentProject(filteredProjects[selectedProjectIndex]);
       setIsProjectPickerOpen(false);
     }
   }, [filteredProjects, selectedProjectIndex, setCurrentProject, setIsProjectPickerOpen]);
@@ -108,7 +108,9 @@ export function useProjectPicker({
         setIsProjectPickerOpen(false);
       } else if (event.key === 'Enter') {
         event.preventDefault();
-        selectHighlightedProject();
+        selectHighlightedProject().catch(() => {
+          /* Error already logged upstream */
+        });
       } else if (event.key === 'ArrowDown') {
         event.preventDefault();
         setSelectedProjectIndex((prev) => (prev < filteredProjects.length - 1 ? prev + 1 : prev));