fix: Add debounced Undo/Redo system to avoid character-by-character history

- Add debounced state updates for title and content (500ms delay)
- Immediate UI updates with delayed history saving
- Prevent one-letter-per-undo issue
- Add cleanup for debounce timers on unmount

mcp-server/node_modules/fast-uri/eslint.config.js

@@ -0,0 +1,6 @@
+'use strict'
+
+module.exports = require('neostandard')({
+  ignores: require('neostandard').resolveIgnoresFromGitignore(),
+  ts: true
+})