feat(editor): add experimental feature adapter panel to AFFiNE canary (#12489)

Closes: [BS-2539](https://linear.app/affine-design/issue/BS-2539/为-affine-添加-ef，并且支持在-affine-预览对应的功能)

> [!warning]
> This feature is only available in the canary build and is intended for debugging purposes.

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

- **New Features**
  - Introduced an "Adapter Panel" feature with a new sidebar tab for previewing document content in multiple formats (Markdown, PlainText, HTML, Snapshot), controllable via a feature flag.
  - Added a fully integrated adapter panel component with reactive UI elements for selecting adapters, toggling HTML preview modes, and updating content.
  - Provided a customizable adapter panel for both main app and playground environments, supporting content transformation pipelines and export previews.
  - Enabled seamless toggling and live updating of adapter panel content through intuitive menus and controls.

- **Localization**
  - Added English translations and descriptive settings for the Adapter Panel feature.

- **Chores**
  - Added new package and workspace dependencies along with TypeScript project references to support the Adapter Panel modules and components.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/all/package.json

@@ -33,6 +33,7 @@
     "@blocksuite/affine-components": "workspace:*",
     "@blocksuite/affine-ext-loader": "workspace:*",
     "@blocksuite/affine-foundation": "workspace:*",
+    "@blocksuite/affine-fragment-adapter-panel": "workspace:*",
     "@blocksuite/affine-fragment-doc-title": "workspace:*",
     "@blocksuite/affine-fragment-frame-panel": "workspace:*",
     "@blocksuite/affine-fragment-outline": "workspace:*",
@@ -209,6 +210,8 @@
     "./fragments/frame-panel/view": "./src/fragments/frame-panel/view.ts",
     "./fragments/outline": "./src/fragments/outline/index.ts",
     "./fragments/outline/view": "./src/fragments/outline/view.ts",
+    "./fragments/adapter-panel": "./src/fragments/adapter-panel/index.ts",
+    "./fragments/adapter-panel/view": "./src/fragments/adapter-panel/view.ts",
     "./gfx/text": "./src/gfx/text/index.ts",
     "./gfx/text/store": "./src/gfx/text/store.ts",
     "./gfx/text/view": "./src/gfx/text/view.ts",

blocksuite/affine/all/src/extensions/view.ts

@@ -19,6 +19,7 @@ import { SurfaceViewExtension } from '@blocksuite/affine-block-surface/view';
 import { SurfaceRefViewExtension } from '@blocksuite/affine-block-surface-ref/view';
 import { TableViewExtension } from '@blocksuite/affine-block-table/view';
 import { FoundationViewExtension } from '@blocksuite/affine-foundation/view';
+import { AdapterPanelViewExtension } from '@blocksuite/affine-fragment-adapter-panel/view';
 import { DocTitleViewExtension } from '@blocksuite/affine-fragment-doc-title/view';
 import { FramePanelViewExtension } from '@blocksuite/affine-fragment-frame-panel/view';
 import { OutlineViewExtension } from '@blocksuite/affine-fragment-outline/view';
@@ -124,5 +125,6 @@ export function getInternalViewExtensions() {
     DocTitleViewExtension,
     FramePanelViewExtension,
     OutlineViewExtension,
+    AdapterPanelViewExtension,
   ];
 }

blocksuite/affine/all/src/fragments/adapter-panel/index.ts

@@ -0,0 +1 @@
+export * from '@blocksuite/affine-fragment-adapter-panel';

blocksuite/affine/all/src/fragments/adapter-panel/view.ts

@@ -0,0 +1 @@
+export * from '@blocksuite/affine-fragment-adapter-panel/view';

blocksuite/affine/all/tsconfig.json

@@ -30,6 +30,7 @@
     { "path": "../components" },
     { "path": "../ext-loader" },
     { "path": "../foundation" },
+    { "path": "../fragments/adapter-panel" },
     { "path": "../fragments/doc-title" },
     { "path": "../fragments/frame-panel" },
     { "path": "../fragments/outline" },