feat(editor): comment extension (#12948)

#### PR Dependency Tree


* **PR #12948** 👈
  * **PR #12980**

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
* Introduced inline comment functionality, allowing users to add,
resolve, and highlight comments directly within text.
  * Added a new toolbar action for inserting comments when supported.
* Inline comments are visually highlighted and can be interacted with in
the editor.

* **Enhancements**
  * Integrated a feature flag to enable or disable the comment feature.
* Improved inline manager rendering to support wrapper specs for
advanced formatting.

* **Developer Tools**
* Added mock comment provider for testing and development environments.

* **Chores**
* Updated dependencies and project references to support the new inline
comment module.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/inlines/comment/package.json

@@ -0,0 +1,46 @@
+{
+  "name": "@blocksuite/affine-inline-comment",
+  "description": "Inline comment for BlockSuite.",
+  "type": "module",
+  "scripts": {
+    "build": "tsc"
+  },
+  "sideEffects": false,
+  "keywords": [],
+  "author": "toeverything",
+  "license": "MIT",
+  "dependencies": {
+    "@blocksuite/affine-ext-loader": "workspace:*",
+    "@blocksuite/affine-model": "workspace:*",
+    "@blocksuite/affine-rich-text": "workspace:*",
+    "@blocksuite/affine-shared": "workspace:*",
+    "@blocksuite/global": "workspace:*",
+    "@blocksuite/std": "workspace:*",
+    "@blocksuite/store": "workspace:*",
+    "@lit/context": "^1.1.2",
+    "@preact/signals-core": "^1.8.0",
+    "@toeverything/theme": "^1.1.15",
+    "@types/lodash-es": "^4.17.12",
+    "lit": "^3.2.0",
+    "lit-html": "^3.2.1",
+    "lodash-es": "^4.17.21",
+    "rxjs": "^7.8.1",
+    "yjs": "^13.6.21",
+    "zod": "^3.23.8"
+  },
+  "devDependencies": {
+    "vitest": "3.1.3"
+  },
+  "exports": {
+    ".": "./src/index.ts",
+    "./view": "./src/view.ts",
+    "./store": "./src/store.ts"
+  },
+  "files": [
+    "src",
+    "dist",
+    "!src/__tests__",
+    "!dist/__tests__"
+  ],
+  "version": "0.21.0"
+}