fix: resolve all TS errors, ESLint warnings, and npm warnings bump to v0.3.12

- Pin all @milkdown/* packages to exact 7.21.1, add phantom-dep plugins as direct deps

- Fix TextSelection.create type error in useMilkdown.ts

- Fix Backspace auto-pair dead-code bug (unreachable due to PAIRS check order)

- Extract parseHeadings/Heading to outlineUtils.ts (react-refresh fix)

- Extract StatusBar item components to StatusBarItems.tsx (react-refresh fix)

- Configure npm allowScripts for electron and esbuild postinstall

- Update QUALITY_REVIEW_REPORT.json with all fixes applied

- Bump version to 0.3.12

package.json

@@ -1,6 +1,6 @@
 {
   "name": "marklite",
-  "version": "0.3.11",
+  "version": "0.3.12",
   "description": "Lightweight Markdown Editor for Windows",
   "main": "./dist/main/index.js",
   "scripts": {
@@ -28,13 +28,18 @@
   "author": "MarkLite",
   "license": "MIT",
   "dependencies": {
-    "@milkdown/core": "^7.21.1",
-    "@milkdown/ctx": "^7.21.1",
-    "@milkdown/preset-commonmark": "^7.21.1",
-    "@milkdown/preset-gfm": "^7.21.1",
-    "@milkdown/prose": "^7.21.2",
-    "@milkdown/react": "^7.21.1",
-    "@milkdown/utils": "^7.21.1",
+    "@milkdown/core": "7.21.1",
+    "@milkdown/ctx": "7.21.1",
+    "@milkdown/plugin-clipboard": "7.21.1",
+    "@milkdown/plugin-history": "7.21.1",
+    "@milkdown/plugin-indent": "7.21.1",
+    "@milkdown/plugin-listener": "7.21.1",
+    "@milkdown/plugin-trailing": "7.21.1",
+    "@milkdown/preset-commonmark": "7.21.1",
+    "@milkdown/preset-gfm": "7.21.1",
+    "@milkdown/prose": "7.21.1",
+    "@milkdown/react": "7.21.1",
+    "@milkdown/utils": "7.21.1",
     "dexie": "^4.0.11",
     "nanoid": "^5.1.5",
     "react": "^18.3.1",
@@ -120,5 +125,9 @@
         "icon": "assets/icon.ico"
       }
     ]
+  },
+  "allowScripts": {
+    "electron": true,
+    "esbuild": true
   }
 }