feat(core): no-access & local for workspace embedding (#12598)

## TL;DR

Workspace embedding settings opt:

* **local workspace**: show enable cloud panel
* **no-access workspace**: disable settings panel

![截屏2025-05-28 14.59.36.png](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/MyktQ6Qwc7H6TiRCFoYN/58e1f511-9bde-487e-a4cd-f0818c582fcb.png)

![截屏2025-05-28 15.00.19.png](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/MyktQ6Qwc7H6TiRCFoYN/25c3db30-bf31-4c92-a771-55ce871c9a7a.png)

> CLOSE AI-155

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

- **New Features**
  - Embedding settings UI now displays a tooltip indicating that only workspace owners can enable Workspace Embedding.
  - Embedding settings are modularized for local and cloud workspaces, with clear separation and appropriate enablement controls.
  - Attachments in embedding settings cannot be deleted when the settings are disabled.

- **Accessibility**
  - Settings wrapper now includes an aria-disabled attribute for improved assistive technology support.

- **Localization**
  - Added a new tooltip message: "Only the workspace owner can enable Workspace Embedding."

- **Tests**
  - Added end-to-end tests for local workspace UI and disabled state when not the workspace owner.

- **UI Improvements**
  - Updated settings panel to better reflect disabled states with tooltips and conditional controls.
  - Improved synchronization when opening the embedding settings panel for a smoother user experience.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/i18n/src/i18n.gen.ts

@@ -6285,6 +6285,10 @@ export function useAFFiNEI18N(): {
       * `Embedding allows AI to retrieve your content. If the indexer uses local settings, it may affect some of the results of the Embedding.`
       */
     ["com.affine.settings.workspace.indexer-embedding.embedding.description"](): string;
+    /**
+      * `Only the workspace owner can enable Workspace Embedding.`
+      */
+    ["com.affine.settings.workspace.indexer-embedding.embedding.disabled-tooltip"](): string;
     /**
       * `Select doc`
       */

packages/frontend/i18n/src/resources/en.json

@@ -1575,6 +1575,7 @@
   "com.affine.settings.workspace.indexer-embedding.description": "Manage AFFiNE indexing and AFFiNE AI Embedding for local content processing",
   "com.affine.settings.workspace.indexer-embedding.embedding.title": "Embedding",
   "com.affine.settings.workspace.indexer-embedding.embedding.description": "Embedding allows AI to retrieve your content. If the indexer uses local settings, it may affect some of the results of the Embedding.",
+  "com.affine.settings.workspace.indexer-embedding.embedding.disabled-tooltip": "Only the workspace owner can enable Workspace Embedding.",
   "com.affine.settings.workspace.indexer-embedding.embedding.select-doc": "Select doc",
   "com.affine.settings.workspace.indexer-embedding.embedding.upload-file": "Upload file",
   "com.affine.settings.workspace.indexer-embedding.embedding.switch.title": "Workspace Embedding",