Update CHANGES.md to include folder locking functionality

CHANGES.md

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+# File and Folder Locking Feature Implementation
+
+## Overview
+
+This implementation adds persistent file and folder locking functionality to the BoltDIY project. When a file or folder is locked, it cannot be modified by either the user or the AI until it is unlocked. All locks are scoped to the current chat/project to prevent locks from one project affecting files with matching names in other projects.
+
+## New Files
+
+### 1. `app/components/chat/LockAlert.tsx`
+
+- A dedicated alert component for displaying lock-related error messages
+- Features a distinctive amber/yellow color scheme and lock icon
+- Provides clear instructions to the user about locked files
+
+### 2. `app/lib/persistence/lockedFiles.ts`
+
+- Core functionality for persisting file and folder locks in localStorage
+- Provides functions for adding, removing, and retrieving locked files and folders
+- Defines the lock modes: "full" (no modifications) and "scoped" (only additions allowed)
+- Implements chat ID scoping to isolate locks to specific projects
+
+### 3. `app/utils/fileLocks.ts`
+
+- Utility functions for checking if a file or folder is locked
+- Helps avoid circular dependencies between components and stores
+- Provides a consistent interface for lock checking across the application
+- Extracts chat ID from URL for project-specific lock scoping
+
+## Modified Files
+
+### 1. `app/components/chat/ChatAlert.tsx`
+
+- Updated to use the new LockAlert component for locked file errors
+- Maintains backward compatibility with other error types
+
+### 2. `app/components/editor/codemirror/CodeMirrorEditor.tsx`
+
+- Added checks to prevent editing of locked files
+- Updated to use the new fileLocks utility
+- Displays appropriate tooltips when a user attempts to edit a locked file
+
+### 3. `app/components/workbench/EditorPanel.tsx`
+
+- Added safety checks for unsavedFiles to prevent errors
+- Improved handling of locked files in the editor panel
+
+### 4. `app/components/workbench/FileTree.tsx`
+
+- Added visual indicators for locked files and folders in the file tree
+- Improved handling of locked files and folders in the file tree
+- Added context menu options for locking and unlocking folders
+
+### 5. `app/lib/stores/editor.ts`
+
+- Added checks to prevent updating locked files
+- Improved error handling for locked files
+
+### 6. `app/lib/stores/files.ts`
+
+- Added core functionality for locking and unlocking files and folders
+- Implemented persistence of locked files and folders across page refreshes
+- Added methods for checking if a file or folder is locked
+- Added chat ID scoping to prevent locks from affecting other projects
+
+### 7. `app/lib/stores/workbench.ts`
+
+- Added methods for locking and unlocking files and folders
+- Improved error handling for locked files and folders
+- Fixed issues with alert initialization
+- Added support for chat ID scoping of locks
+
+### 8. `app/types/actions.ts`
+
+- Added `isLockedFile` property to the ActionAlert interface
+- Improved type definitions for locked file alerts
+
+## Key Features
+
+1. **Persistent File and Folder Locking**: Locks are stored in localStorage and persist across page refreshes
+2. **Visual Indicators**: Locked files and folders are clearly marked in the UI with lock icons
+3. **Improved Error Messages**: Clear, visually distinct error messages when attempting to modify locked items
+4. **Lock Modes**: Support for both full locks (no modifications) and scoped locks (only additions allowed)
+5. **Prevention of AI Modifications**: The AI is prevented from modifying locked files and folders
+6. **Project-Specific Locks**: Locks are scoped to the current chat/project to prevent conflicts
+7. **Recursive Folder Locking**: Locking a folder automatically locks all files and subfolders within it
+
+## UI Improvements
+
+1. **Enhanced Alert Design**: Modern, visually appealing alert design with better spacing and typography
+2. **Contextual Icons**: Different icons and colors for different types of alerts
+3. **Improved Error Details**: Better formatting of error details with monospace font and left border
+4. **Responsive Buttons**: Better positioned and styled buttons with appropriate hover effects