refactor: replace Task tool with Agent tool and fix schema compliance

## Task -> Agent Replacement
- Replace all Task({}) calls with Agent({}) across .claude/ directory
- Update allowed-tools declarations from Task to Agent
- Update documentation references from "Task tool" to "Agent tool"

## Schema Compliance Fixes

### Agent Schema
- Add missing required `description` parameter in 6 files
- Add missing `run_in_background: false` for subagent calls
- Add missing `subagent_type` parameter

### AskUserQuestion Schema
- Fix issue-manage/SKILL.md: reduce options from 5 to 4 (max allowed)

### SendMessage Schema
- Fix team-worker.md: use correct params (type, content, summary)
- Remove invalid `team_name` parameter

### TaskCreate/TaskUpdate Schema
- Remove invalid `blockedBy`, `owner`, `status` from TaskCreate calls
- Use separate TaskUpdate calls for dependencies and ownership
- Fix TaskUpdate syntax to use object parameter

### TeamDelete Schema
- Remove parameters from TeamDelete() calls (should be no params)

### TaskOutput Schema
- Fix Python-style syntax to JavaScript object syntax

## Files Changed
- 146 files updated across commands/, skills/, skills_lib/, agents/

.claude/skills/review-cycle/phases/review-fix.md

@@ -332,7 +332,7 @@ for (let i = 0; i < batches.length; i += MAX_PARALLEL) {
 
   // Launch agents in parallel (run_in_background=true)
   for (const batch of chunk) {
-    const taskId = Task({
+    const taskId = Agent({
       subagent_type: "cli-planning-agent",
       run_in_background: true,
       description: `Plan batch ${batch.batch_id}: ${batch.findings.length} findings`,
@@ -386,7 +386,7 @@ for (let i = 1; i <= aggregatedPlan.groups.length; i++) {
 
 **Planning Agent (Batch Mode - Partial Plan Only)**:
 ```javascript
-Task({
+Agent({
   subagent_type: "cli-planning-agent",
   run_in_background: true,
   description: `Plan batch ${batch.batch_id}: ${batch.findings.length} findings`,
@@ -488,7 +488,7 @@ Before finalizing outputs:
 
 **Execution Agent** (per group):
 ```javascript
-Task({
+Agent({
   subagent_type: "cli-execute-agent",
   description: `Fix ${group.findings.length} issues: ${group.group_name}`,
   prompt: `