refactor(editor): move transcription block model to ai (#12010)

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

## Summary by CodeRabbit

- **Refactor**
	- Updated and reorganized import paths for transcription block models and types to improve module structure and maintainability.
- **Chores**
	- Removed deprecated transcription block schema and related exports from core libraries.
	- Registered transcription block schema directly within the workspace schema for improved schema management.
- **Bug Fixes**
	- Ensured consistent registration and availability of transcription block features across relevant modules.

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

packages/frontend/core/src/modules/media/entities/audio-attachment-block.ts

@@ -1,13 +1,13 @@
+import {
+  TranscriptionBlockFlavour,
+  type TranscriptionBlockModel,
+} from '@affine/core/blocksuite/ai/blocks/transcription-block/model';
 import { insertFromMarkdown } from '@affine/core/blocksuite/utils';
 import { encodeAudioBlobToOpusSlices } from '@affine/core/utils/webm-encoding';
 import { DebugLogger } from '@affine/debug';
 import { AiJobStatus } from '@affine/graphql';
 import track from '@affine/track';
-import {
-  type AttachmentBlockModel,
-  TranscriptionBlockFlavour,
-  type TranscriptionBlockModel,
-} from '@blocksuite/affine/model';
+import type { AttachmentBlockModel } from '@blocksuite/affine/model';
 import type { AffineTextAttributes } from '@blocksuite/affine/shared/types';
 import { type DeltaInsert, Text } from '@blocksuite/affine/store';
 import { computed } from '@preact/signals-core';

packages/frontend/core/src/modules/media/entities/audio-transcription-job.ts

@@ -1,8 +1,8 @@
 import { shallowEqual } from '@affine/component';
+import type { TranscriptionBlockProps } from '@affine/core/blocksuite/ai/blocks/transcription-block/model';
 import { DebugLogger } from '@affine/debug';
 import { UserFriendlyError } from '@affine/error';
 import { AiJobStatus } from '@affine/graphql';
-import type { TranscriptionBlockProps } from '@blocksuite/affine/model';
 import { Entity, LiveData } from '@toeverything/infra';
 
 import type { DefaultServerService, WorkspaceServerService } from '../../cloud';

packages/frontend/core/src/modules/workspace/global-schema.ts

@@ -1,4 +1,5 @@
 import { AIChatBlockSchema } from '@affine/core/blocksuite/ai/blocks/ai-chat-block/model';
+import { TranscriptionBlockSchema } from '@affine/core/blocksuite/ai/blocks/transcription-block/model';
 import { AffineSchemas } from '@blocksuite/affine/schemas';
 import { Schema } from '@blocksuite/affine/store';
 
@@ -7,7 +8,11 @@ export function getAFFiNEWorkspaceSchema() {
   if (!_schema) {
     _schema = new Schema();
 
-    _schema.register([...AffineSchemas, AIChatBlockSchema]);
+    _schema.register([
+      ...AffineSchemas,
+      AIChatBlockSchema,
+      TranscriptionBlockSchema,
+    ]);
   }
 
   return _schema;