refactor: move doc-title and ai-chat-block components (#10316)

### TL;DR
Moved doc title and AI chat block components to more appropriate locations while removing unused backlink functionality.

### What changed?
- Relocated doc title component from presets to affine-components
- Moved AI chat block from presets/blocks to blocks directory
- Removed unused backlink-related code and components
- Updated imports across files to reference new component locations
- Consolidated AI-related exports through a single entry point

### How to test?
1. Verify doc title still renders correctly in documents
2. Confirm AI chat functionality works as expected
3. Check that no backlink-related features are accessible
4. Ensure all AI features continue to work through the new import paths

### Why make this change?
This reorganization improves code organization by:
- Placing components closer to their related functionality
- Removing dead/unused code around backlinks
- Simplifying the import structure for AI-related features
- Making the codebase more maintainable by consolidating related components

packages/frontend/core/src/components/blocksuite/block-suite-editor/ai/request.ts

@@ -1,4 +1,4 @@
-import { AIProvider } from '@affine/core/blocksuite/presets/ai';
+import { AIProvider } from '@affine/core/blocksuite/presets';
 import { assertExists } from '@blocksuite/affine/global/utils';
 import { partition } from 'lodash-es';
 

packages/frontend/core/src/components/blocksuite/block-suite-editor/ai/setup-provider.tsx

@@ -1,4 +1,4 @@
-import { AIProvider } from '@affine/core/blocksuite/presets/ai';
+import { AIProvider } from '@affine/core/blocksuite/presets';
 import { toggleGeneralAIOnboarding } from '@affine/core/components/affine/ai-onboarding/apis';
 import type { GlobalDialogService } from '@affine/core/modules/dialogs';
 import {

packages/frontend/core/src/components/blocksuite/block-suite-editor/ai/tracker.ts

@@ -1,4 +1,4 @@
-import { AIProvider } from '@affine/core/blocksuite/presets/ai';
+import { AIProvider } from '@affine/core/blocksuite/presets';
 import { mixpanel, track } from '@affine/track';
 import type { EditorHost } from '@blocksuite/affine/block-std';
 import type { GfxPrimitiveElementModel } from '@blocksuite/affine/block-std/gfx';

packages/frontend/core/src/components/blocksuite/block-suite-editor/blocksuite-editor-container.tsx

@@ -2,12 +2,12 @@ import { FeatureFlagService } from '@affine/core/modules/feature-flag';
 import {
   appendParagraphCommand,
   type DocMode,
+  type DocTitle,
   focusBlockEnd,
   getLastNoteBlock,
 } from '@blocksuite/affine/blocks';
 import type {
   AffineEditorContainer,
-  DocTitle,
   EdgelessEditor,
   PageEditor,
 } from '@blocksuite/affine/presets';

packages/frontend/core/src/components/blocksuite/block-suite-editor/lit-adaper.tsx

@@ -20,17 +20,14 @@ import track from '@affine/track';
 import {
   codeToolbarWidget,
   type DocMode,
+  DocTitle,
   embedCardToolbarWidget,
   formatBarWidget,
   imageToolbarWidget,
   slashMenuWidget,
   surfaceRefToolbarWidget,
 } from '@blocksuite/affine/blocks';
-import {
-  DocTitle,
-  EdgelessEditor,
-  PageEditor,
-} from '@blocksuite/affine/presets';
+import { EdgelessEditor, PageEditor } from '@blocksuite/affine/presets';
 import type { Store } from '@blocksuite/affine/store';
 import {
   useFramework,

packages/frontend/core/src/components/blocksuite/block-suite-editor/specs/common.ts

@@ -1,9 +1,9 @@
+import { AIChatBlockSpec } from '@affine/core/blocksuite/blocks';
 import {
   AICodeBlockSpec,
   AIImageBlockSpec,
   AIParagraphBlockSpec,
-} from '@affine/core/blocksuite/presets/ai';
-import { AIChatBlockSpec } from '@affine/core/blocksuite/presets/blocks/ai-chat-block';
+} from '@affine/core/blocksuite/presets';
 import {
   AdapterFactoryExtensions,
   AttachmentBlockSpec,

packages/frontend/core/src/components/blocksuite/block-suite-editor/specs/custom/root-block.ts

@@ -1,9 +1,9 @@
+import { AIChatBlockSpec } from '@affine/core/blocksuite/blocks';
 import {
   AICodeBlockSpec,
   AIImageBlockSpec,
   AIParagraphBlockSpec,
-} from '@affine/core/blocksuite/presets/ai';
-import { AIChatBlockSpec } from '@affine/core/blocksuite/presets/blocks';
+} from '@affine/core/blocksuite/presets';
 import { DocService, DocsService } from '@affine/core/modules/doc';
 import { DocDisplayMetaService } from '@affine/core/modules/doc-display-meta';
 import { EditorSettingService } from '@affine/core/modules/editor-setting';

packages/frontend/core/src/components/blocksuite/block-suite-editor/specs/custom/widgets/copy-as-image.ts

@@ -1,8 +1,5 @@
 import { notify } from '@affine/component';
-import {
-  isMindmapChild,
-  isMindMapRoot,
-} from '@affine/core/blocksuite/presets/ai/utils/edgeless';
+import { isMindmapChild, isMindMapRoot } from '@affine/core/blocksuite/presets';
 import { EditorService } from '@affine/core/modules/editor';
 import { apis } from '@affine/electron-api';
 import { I18n } from '@affine/i18n';

packages/frontend/core/src/components/blocksuite/block-suite-editor/specs/edgeless.ts

@@ -1,4 +1,4 @@
-import { createAIEdgelessRootBlockSpec } from '@affine/core/blocksuite/presets/ai';
+import { createAIEdgelessRootBlockSpec } from '@affine/core/blocksuite/presets';
 import { FeatureFlagService } from '@affine/core/modules/feature-flag';
 import { builtInTemplates as builtInEdgelessTemplates } from '@affine/templates/edgeless';
 import { builtInTemplates as builtInStickersTemplates } from '@affine/templates/stickers';

packages/frontend/core/src/components/blocksuite/block-suite-editor/specs/page.ts

@@ -1,4 +1,4 @@
-import { createAIPageRootBlockSpec } from '@affine/core/blocksuite/presets/ai';
+import { createAIPageRootBlockSpec } from '@affine/core/blocksuite/presets';
 import { FeatureFlagService } from '@affine/core/modules/feature-flag';
 import {
   PageRootBlockSpec,

packages/frontend/core/src/components/blocksuite/block-suite-editor/specs/preview.ts

@@ -1,4 +1,4 @@
-import { AIChatBlockSpec } from '@affine/core/blocksuite/presets/blocks/ai-chat-block';
+import { AIChatBlockSpec } from '@affine/core/blocksuite/blocks';
 import { PeekViewService } from '@affine/core/modules/peek-view/services/peek-view';
 import { AppThemeService } from '@affine/core/modules/theme';
 import {

packages/frontend/core/src/components/blocksuite/block-suite-editor/starter-bar.tsx

@@ -1,5 +1,7 @@
-import { handleInlineAskAIAction } from '@affine/core/blocksuite/presets/ai';
-import { pageAIGroups } from '@affine/core/blocksuite/presets/ai/_common/config';
+import {
+  handleInlineAskAIAction,
+  pageAIGroups,
+} from '@affine/core/blocksuite/presets';
 import { DocsService } from '@affine/core/modules/doc';
 import { EditorService } from '@affine/core/modules/editor';
 import { FeatureFlagService } from '@affine/core/modules/feature-flag';

packages/frontend/core/src/components/providers/workspace-side-effects.tsx

@@ -3,7 +3,7 @@ import {
   pushGlobalLoadingEventAtom,
   resolveGlobalLoadingEventAtom,
 } from '@affine/component/global-loading';
-import { AIProvider } from '@affine/core/blocksuite/presets/ai';
+import { AIProvider } from '@affine/core/blocksuite/presets';
 import { SyncAwareness } from '@affine/core/components/affine/awareness';
 import { useRegisterFindInPageCommands } from '@affine/core/components/hooks/affine/use-register-find-in-page-commands';
 import { useRegisterWorkspaceCommands } from '@affine/core/components/hooks/use-register-workspace-commands';