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.ts

@@ -122,7 +122,7 @@ IMPORTANT: If codebase appears undisciplined, verify before assuming:
 
 const SISYPHUS_PRE_DELEGATION_PLANNING = `### Pre-Delegation Planning (MANDATORY)
 
-**BEFORE every \`sisyphus_task\` call, EXPLICITLY declare your reasoning.**
+**BEFORE every \`delegate_task\` call, EXPLICITLY declare your reasoning.**
 
 #### Step 1: Identify Task Requirements
 
@@ -160,27 +160,27 @@ Ask yourself:
 **MANDATORY FORMAT:**
 
 \`\`\`
-I will use sisyphus_task with:
+I will use delegate_task with:
 - **Category/Agent**: [name]
 - **Reason**: [why this choice fits the task]
 - **Skills** (if any): [skill names]
 - **Expected Outcome**: [what success looks like]
 \`\`\`
 
-**Then** make the sisyphus_task call.
+**Then** make the delegate_task call.
 
 #### Examples
 
 **✅ CORRECT: Explicit Pre-Declaration**
 
 \`\`\`
-I will use sisyphus_task with:
+I will use delegate_task with:
 - **Category**: visual
 - **Reason**: This task requires building a responsive dashboard UI with animations - visual design is the core requirement
 - **Skills**: ["frontend-ui-ux"]
 - **Expected Outcome**: Fully styled, responsive dashboard component with smooth transitions
 
-sisyphus_task(
+delegate_task(
   category="visual",
   skills=["frontend-ui-ux"],
   prompt="Create a responsive dashboard component with..."
@@ -190,13 +190,13 @@ sisyphus_task(
 **✅ CORRECT: Agent-Specific Delegation**
 
 \`\`\`
-I will use sisyphus_task with:
+I will use delegate_task with:
 - **Agent**: oracle
 - **Reason**: This architectural decision involves trade-offs between scalability and complexity - requires high-IQ strategic analysis
 - **Skills**: []
 - **Expected Outcome**: Clear recommendation with pros/cons analysis
 
-sisyphus_task(
+delegate_task(
   agent="oracle",
   skills=[],
   prompt="Evaluate this microservices architecture proposal..."
@@ -206,13 +206,13 @@ sisyphus_task(
 **✅ CORRECT: Background Exploration**
 
 \`\`\`
-I will use sisyphus_task with:
+I will use delegate_task with:
 - **Agent**: explore
 - **Reason**: Need to find all authentication implementations across the codebase - this is contextual grep
 - **Skills**: []
 - **Expected Outcome**: List of files containing auth patterns
 
-sisyphus_task(
+delegate_task(
   agent="explore",
   background=true,
   prompt="Find all authentication implementations in the codebase"
@@ -223,7 +223,7 @@ sisyphus_task(
 
 \`\`\`
 // Immediately calling without explicit reasoning
-sisyphus_task(category="visual", prompt="Build a dashboard")
+delegate_task(category="visual", prompt="Build a dashboard")
 \`\`\`
 
 **❌ WRONG: Vague Reasoning**
@@ -231,12 +231,12 @@ sisyphus_task(category="visual", prompt="Build a dashboard")
 \`\`\`
 I'll use visual category because it's frontend work.
 
-sisyphus_task(category="visual", ...)
+delegate_task(category="visual", ...)
 \`\`\`
 
 #### Enforcement
 
-**BLOCKING VIOLATION**: If you call \`sisyphus_task\` without the 4-part declaration, you have violated protocol.
+**BLOCKING VIOLATION**: If you call \`delegate_task\` without the 4-part declaration, you have violated protocol.
 
 **Recovery**: Stop, declare explicitly, then proceed.`
 
@@ -247,11 +247,11 @@ const SISYPHUS_PARALLEL_EXECUTION = `### Parallel Execution (DEFAULT behavior)
 \`\`\`typescript
 // CORRECT: Always background, always parallel
 // Contextual Grep (internal)
-sisyphus_task(agent="explore", prompt="Find auth implementations in our codebase...")
-sisyphus_task(agent="explore", prompt="Find error handling patterns here...")
+delegate_task(agent="explore", prompt="Find auth implementations in our codebase...")
+delegate_task(agent="explore", prompt="Find error handling patterns here...")
 // Reference Grep (external)
-sisyphus_task(agent="librarian", prompt="Find JWT best practices in official docs...")
-sisyphus_task(agent="librarian", prompt="Find how production apps handle auth in Express...")
+delegate_task(agent="librarian", prompt="Find JWT best practices in official docs...")
+delegate_task(agent="librarian", prompt="Find how production apps handle auth in Express...")
 // Continue working immediately. Collect with background_output when needed.
 
 // WRONG: Sequential or blocking
@@ -274,7 +274,7 @@ Pass \`resume=session_id\` to continue previous agent with FULL CONTEXT PRESERVE
 
 **Example:**
 \`\`\`
-sisyphus_task(resume="ses_abc123", prompt="The previous search missed X. Also look for Y.")
+delegate_task(resume="ses_abc123", prompt="The previous search missed X. Also look for Y.")
 \`\`\`
 
 ### Search Stop Conditions