feat: implement worktree setup commands management

- Introduced `readFile` and `writeFile` methods in the FilesAPI for reading and writing files.
- Added `execCommands` method to execute shell commands in a specified directory.
- Implemented `runWorktreeSetupCommands` function to handle setup commands for worktrees.
- Created `OpenChamberConfig` service for managing project-specific configuration, including setup commands.
- Enhanced `useMultiRunStore` to save and execute setup commands during multi-run creation.
- Updated VSCode bridge to handle file read/write and command execution requests.
- Added server endpoints for reading and writing files, and executing shell commands.

packages/ui/src/lib/api/types.ts

@@ -316,10 +316,22 @@ export interface FileSearchResult {
   preview?: string[];
 }
 
+export interface CommandExecResult {
+  command: string;
+  success: boolean;
+  exitCode?: number;
+  stdout?: string;
+  stderr?: string;
+  error?: string;
+}
+
 export interface FilesAPI {
   listDirectory(path: string): Promise<DirectoryListResult>;
   search(payload: FileSearchQuery): Promise<FileSearchResult[]>;
   createDirectory(path: string): Promise<{ success: boolean; path: string }>;
+  readFile?(path: string): Promise<{ content: string; path: string }>;
+  writeFile?(path: string, content: string): Promise<{ success: boolean; path: string }>;
+  execCommands?(commands: string[], cwd: string): Promise<{ success: boolean; results: CommandExecResult[] }>;
 }
 
 export interface ProjectEntry {