fix(agents): allow Momus and Metis delegation

Keep Momus and Metis read-only for file edits while allowing task-based invocation for planning review workflows.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/shared/agent-tool-restrictions.ts

@@ -28,13 +28,11 @@ const AGENT_RESTRICTIONS: Record<string, Record<string, boolean>> = {
   metis: {
     write: false,
     edit: false,
-    task: false,
   },
 
   momus: {
     write: false,
     edit: false,
-    task: false,
   },
 
   "multimodal-looker": {