refactor: rename sisyphus_task to delegate_task

- Rename directories: sisyphus-task → delegate-task
- Rename types: SisyphusTaskArgs → DelegateTaskArgs, etc.
- Rename functions: createSisyphusTask → createDelegateTask
- Rename constants: SISYPHUS_TASK_* → DELEGATE_TASK_*
- Update tool name: sisyphus_task → delegate_task
- Update all prompts, docs, and tests

src/agents/sisyphus-junior.test.ts

@@ -138,13 +138,13 @@ describe("createSisyphusJuniorAgentWithOverrides", () => {
     })
   })
 
-  describe("tool safety (task/sisyphus_task blocked, call_omo_agent allowed)", () => {
-    test("task and sisyphus_task remain blocked, call_omo_agent is allowed via tools format", () => {
+  describe("tool safety (task/delegate_task blocked, call_omo_agent allowed)", () => {
+    test("task and delegate_task remain blocked, call_omo_agent is allowed via tools format", () => {
       // #given
       const override = {
         tools: {
           task: true,
-          sisyphus_task: true,
+          delegate_task: true,
           call_omo_agent: true,
           read: true,
         },
@@ -158,25 +158,25 @@ describe("createSisyphusJuniorAgentWithOverrides", () => {
       const permission = result.permission as Record<string, string> | undefined
       if (tools) {
         expect(tools.task).toBe(false)
-        expect(tools.sisyphus_task).toBe(false)
+        expect(tools.delegate_task).toBe(false)
         // call_omo_agent is NOW ALLOWED for subagents to spawn explore/librarian
         expect(tools.call_omo_agent).toBe(true)
         expect(tools.read).toBe(true)
       }
       if (permission) {
         expect(permission.task).toBe("deny")
-        expect(permission.sisyphus_task).toBe("deny")
+        expect(permission.delegate_task).toBe("deny")
         // call_omo_agent is NOW ALLOWED for subagents to spawn explore/librarian
         expect(permission.call_omo_agent).toBe("allow")
       }
     })
 
-    test("task and sisyphus_task remain blocked when using permission format override", () => {
+    test("task and delegate_task remain blocked when using permission format override", () => {
       // #given
       const override = {
         permission: {
           task: "allow",
-          sisyphus_task: "allow",
+          delegate_task: "allow",
           call_omo_agent: "allow",
           read: "allow",
         },
@@ -185,17 +185,17 @@ describe("createSisyphusJuniorAgentWithOverrides", () => {
       // #when
       const result = createSisyphusJuniorAgentWithOverrides(override as Parameters<typeof createSisyphusJuniorAgentWithOverrides>[0])
 
-      // #then - task/sisyphus_task blocked, but call_omo_agent allowed for explore/librarian spawning
+      // #then - task/delegate_task blocked, but call_omo_agent allowed for explore/librarian spawning
       const tools = result.tools as Record<string, boolean> | undefined
       const permission = result.permission as Record<string, string> | undefined
       if (tools) {
         expect(tools.task).toBe(false)
-        expect(tools.sisyphus_task).toBe(false)
+        expect(tools.delegate_task).toBe(false)
         expect(tools.call_omo_agent).toBe(true)
       }
       if (permission) {
         expect(permission.task).toBe("deny")
-        expect(permission.sisyphus_task).toBe("deny")
+        expect(permission.delegate_task).toBe("deny")
         expect(permission.call_omo_agent).toBe("allow")
       }
     })