feat: ai apply ui (#12962)

## New Features
* **Block Meta Markdown Adapter**：Inject the Block's metadata into
Markdown.
* **UI**：Apply interaction
   * **Widget**
* Block-Level Widget: Displays the diffs of individual blocks within the
main content and supports accepting/rejecting individual diffs.
* Page-Level Widget: Displays global options (Accept all/Reject all).
   * **Block Diff Service**：Bridge widget and diff data
* Widget subscribes to DiffMap(RenderDiff) data, refreshing the view
when the data changes.
* Widget performs operations such as Accept/Reject via methods provided
by Service.
   * **Doc Edit Tool Card**:
     * Display apply preview of semantic doc edit
     * Support apply & accept/reject to the main content
* **Apply Playground**：A devtool for testing apply new content to
current

> CLOSE AI-274 AI-275 AI-276  AI-278 

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

* **New Features**
* Introduced block-level markdown diffing with accept/reject controls
for insertions, deletions, and updates.
* Added block diff widgets for individual blocks and pages, featuring
navigation and bulk accept/reject actions.
* Provided a block diff playground for testing and previewing markdown
changes (development mode only).
* Added a new document editing AI tool component with interactive diff
viewing and change application.
* Supported rendering of the document editing tool within AI chat
content streams.

* **Improvements**
* Enhanced widget rendering in list, paragraph, data view, and database
blocks for improved extensibility.
* Improved widget flavour matching with hierarchical wildcard support
for more flexible UI integration.

* **Chores**
* Updated the "@toeverything/theme" dependency to version ^1.1.16 across
multiple packages.
* Added new workspace dependencies for core frontend packages to improve
module linkage.
* Extended global styles with visual highlights for deleted blocks in AI
block diff feature.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/blocks/paragraph/package.json

@@ -23,7 +23,7 @@
     "@floating-ui/dom": "^1.6.13",
     "@lit/context": "^1.1.2",
     "@preact/signals-core": "^1.8.0",
-    "@toeverything/theme": "^1.1.15",
+    "@toeverything/theme": "^1.1.16",
     "@types/mdast": "^4.0.4",
     "lit": "^3.2.0",
     "minimatch": "^10.0.1",

blocksuite/affine/blocks/paragraph/src/paragraph-block.ts

@@ -27,6 +27,7 @@ import { computed, effect, signal } from '@preact/signals-core';
 import { html, nothing, type TemplateResult } from 'lit';
 import { query, state } from 'lit/decorators.js';
 import { classMap } from 'lit/directives/class-map.js';
+import { repeat } from 'lit/directives/repeat.js';
 import { styleMap } from 'lit/directives/style-map.js';
 import { unsafeHTML } from 'lit/directives/unsafe-html.js';
 
@@ -236,6 +237,12 @@ export class ParagraphBlockComponent extends CaptionedBlockComponent<ParagraphBl
   }
 
   override renderBlock(): TemplateResult<1> {
+    const widgets = html`${repeat(
+      Object.entries(this.widgets),
+      ([id]) => id,
+      ([_, widget]) => widget
+    )}`;
+
     const { type$ } = this.model.props;
     const collapsed = this.store.readonly
       ? this._readonlyCollapsed
@@ -352,7 +359,7 @@ export class ParagraphBlockComponent extends CaptionedBlockComponent<ParagraphBl
               `}
         </div>
 
-        ${children}
+        ${children} ${widgets}
       </div>
     `;
   }