feat(core): move context docs to user prompt (#10162)

Fix issue [BS-2522](https://linear.app/affine-design/issue/BS-2522).

### Why make this change?
If the user data contains illegal content, carrying the user data in the system prompt will run the risk of having the account banned.

### What Changed?
- Move the `Context Documents` to the user prompt.
- Add `withPrompt` in `QueryChatHistoriesInput` options.
- Get chat histories without prompt messages.
- Omit document context when saving messages to the `aiSessionMessage` db.

packages/frontend/core/src/blocksuite/presets/ai/actions/types.ts

@@ -1,4 +1,5 @@
 import type {
+  ChatHistoryOrder,
   CopilotContextDoc,
   CopilotContextFile,
   getCopilotHistoriesQuery,
@@ -312,9 +313,10 @@ declare global {
       chats: (
         workspaceId: string,
         docId?: string,
-        options?: RequestOptions<
-          typeof getCopilotHistoriesQuery
-        >['variables']['options']
+        options?: {
+          sessionId?: string;
+          messageOrder?: ChatHistoryOrder;
+        }
       ) => Promise<AIHistory[] | undefined>;
       cleanup: (
         workspaceId: string,

packages/frontend/core/src/blocksuite/presets/ai/chat-panel/index.ts

@@ -125,7 +125,7 @@ export class ChatPanel extends WithDisposable(ShadowlessElement) {
     const currentRequest = ++this._updateHistoryCounter;
 
     const [histories, actions] = await Promise.all([
-      AIProvider.histories?.chats(doc.workspace.id, doc.id, { fork: false }),
+      AIProvider.histories?.chats(doc.workspace.id, doc.id),
       AIProvider.histories?.actions(doc.workspace.id, doc.id),
     ]);