fix: ensure Sisyphus agent has call_omo_agent disabled

The tools restriction was defined in sisyphus.ts but not enforced in
config-handler.ts like other agents (orchestrator-sisyphus, Prometheus).
Added explicit tools setting to guarantee call_omo_agent is disabled.

src/plugin-handlers/config-handler.ts

@@ -144,6 +144,7 @@ export function createConfigHandler(deps: ConfigHandlerDeps) {
       librarian?: { tools?: Record<string, unknown> };
       "multimodal-looker"?: { tools?: Record<string, unknown> };
       "orchestrator-sisyphus"?: { tools?: Record<string, unknown> };
+      Sisyphus?: { tools?: Record<string, unknown> };
     };
     const configAgent = config.agent as AgentConfig | undefined;
 
@@ -310,6 +311,12 @@ export function createConfigHandler(deps: ConfigHandlerDeps) {
         call_omo_agent: false,
       };
     }
+    if (agentResult.Sisyphus) {
+      agentResult.Sisyphus.tools = {
+        ...agentResult.Sisyphus.tools,
+        call_omo_agent: false,
+      };
+    }
     if (agentResult["Prometheus (Planner)"]) {
       (agentResult["Prometheus (Planner)"] as { tools?: Record<string, unknown> }).tools = {
         ...(agentResult["Prometheus (Planner)"] as { tools?: Record<string, unknown> }).tools,