🗑️ chore: Remove Deprecated Project Model and Associated Fields (#11773)

* chore: remove projects and projectIds usage

* chore: empty line linting

* chore: remove isCollaborative property across agent models and related tests

- Removed the isCollaborative property from agent models, controllers, and tests, as it is deprecated in favor of ACL permissions.
- Updated related validation schemas and data provider types to reflect this change.
- Ensured all references to isCollaborative were stripped from the codebase to maintain consistency and clarity.

packages/data-provider/src/schemas.ts

@@ -258,11 +258,8 @@ export const defaultAgentFormValues = {
   tools: [],
   tool_options: {},
   provider: {},
-  projectIds: [],
   edges: [],
   artifacts: '',
-  /** @deprecated Use ACL permissions instead */
-  isCollaborative: false,
   recursion_limit: undefined,
   [Tools.execute_code]: false,
   [Tools.file_search]: false,