feat: add AI command suggestions extension for Tiptap editor

- Implemented Commands plugin to handle command suggestions triggered by '@' character.
- Created suggestion configuration to filter and render command items.
- Added various command items including date, time, formatting, templates, and task management commands.
- Introduced CSS styles for the Tiptap editor to enhance UI.
- Configured TypeScript settings and Vite build for the project.

vite.config.lib.ts

@@ -0,0 +1,27 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+import path from 'path';
+import tailwindcss from '@tailwindcss/vite';
+const plugins = [react(), tailwindcss()];
+
+/**
+ * @see https://vitejs.dev/config/
+ */
+export default defineConfig({
+  plugins,
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+    },
+  },
+  build: {
+    lib: {
+      entry: path.resolve(__dirname, 'mod.ts'),
+      name: 'KvMd',
+      formats: ['es'],
+      fileName: () => `kv-md.js`,
+    },
+    outDir: 'dist',
+    emptyOutDir: true,
+  },
+});