refactor(editor): support dynamic text attribute key (#12947)

#### PR Dependency Tree


* **PR #12946**
  * **PR #12947** 👈
    * **PR #12948**

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blocksuite/affine/inlines/mention/src/inline-spec.ts

@@ -9,14 +9,16 @@ export const MentionInlineSpecExtension =
     const std = provider.get(StdIdentifier);
     return {
       name: 'mention',
-      schema: z
-        .object({
-          member: z.string(),
-          notification: z.string().optional(),
-        })
-        .optional()
-        .nullable()
-        .catch(undefined),
+      schema: z.object({
+        mention: z
+          .object({
+            member: z.string(),
+            notification: z.string().optional(),
+          })
+          .optional()
+          .nullable()
+          .catch(undefined),
+      }),
       match: delta => {
         return !!delta.attributes?.mention?.member;
       },