Markdown file operations for Feishu Drive: create, read, edit, patch, and compare native .md files.

• Five core commands: create new files, fetch remote content, overwrite existing files, apply local text/regex patches, and diff versions or remote vs. local drafts
• Patch operation downloads the full file, applies replacements locally, then re-uploads; supports single pattern-content pairs and rejects empty results
• File names must explicitly include .md suffix; content input accepts strings, local files via @file, or stdin via -
• Requires lark-cli binary and authentication via shared Feishu credentials; file management tasks like rename, move, delete, and permissions belong in lark-drive skill