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/hooks/prometheus-md-only/index.test.ts

@@ -154,11 +154,11 @@ describe("prometheus-md-only", () => {
       ).resolves.toBeUndefined()
     })
 
-    test("should inject read-only warning when Prometheus calls sisyphus_task", async () => {
+    test("should inject read-only warning when Prometheus calls delegate_task", async () => {
       // #given
       const hook = createPrometheusMdOnlyHook(createMockPluginInput())
       const input = {
-        tool: "sisyphus_task",
+        tool: "delegate_task",
         sessionID: TEST_SESSION_ID,
         callID: "call-1",
       }
@@ -216,7 +216,7 @@ describe("prometheus-md-only", () => {
       // #given
       const hook = createPrometheusMdOnlyHook(createMockPluginInput())
       const input = {
-        tool: "sisyphus_task",
+        tool: "delegate_task",
         sessionID: TEST_SESSION_ID,
         callID: "call-1",
       }
@@ -257,11 +257,11 @@ describe("prometheus-md-only", () => {
       ).resolves.toBeUndefined()
     })
 
-    test("should not inject warning for non-Prometheus agents calling sisyphus_task", async () => {
+    test("should not inject warning for non-Prometheus agents calling delegate_task", async () => {
       // #given
       const hook = createPrometheusMdOnlyHook(createMockPluginInput())
       const input = {
-        tool: "sisyphus_task",
+        tool: "delegate_task",
         sessionID: TEST_SESSION_ID,
         callID: "call-1",
       }

src/hooks/prometheus-md-only/index.ts

@@ -61,7 +61,7 @@ function getMessageDir(sessionID: string): string | null {
   return null
 }
 
-const TASK_TOOLS = ["sisyphus_task", "task", "call_omo_agent"]
+const TASK_TOOLS = ["delegate_task", "task", "call_omo_agent"]
 
 function getAgentFromMessageFiles(sessionID: string): string | undefined {
   const messageDir = getMessageDir(sessionID)