feat: standardize request_user_input schema across all codex skills and add config reminder

- Update all 68 .codex/skills files to use correct request_user_input schema
  (header, id, question, options with label/description)
- Remove deprecated multiSelect, type, value, prompt fields
- Add mandatory confirmation gates to planning-only skills
- Add Codex config.toml reminder to ccw install CLI
- Add Codex configuration section to README.md and README_CN.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.codex/skills/team-tech-debt/SKILL.md

@@ -2,7 +2,7 @@
 name: team-tech-debt
 description: Systematic tech debt governance with CSV wave pipeline. Scans codebase for tech debt across 5 dimensions, assesses severity with priority matrix, plans phased remediation, executes fixes in worktree, validates with 4-layer checks. Supports scan/remediate/targeted pipeline modes with fix-verify GC loop.
 argument-hint: "[-y|--yes] [-c|--concurrency N] [--continue] [--mode=scan|remediate|targeted] \"scope or description\""
-allowed-tools: spawn_agents_on_csv, spawn_agent, wait, send_input, close_agent, Read, Write, Edit, Bash, Glob, Grep, AskUserQuestion
+allowed-tools: spawn_agents_on_csv, spawn_agent, wait, send_input, close_agent, Read, Write, Edit, Bash, Glob, Grep, request_user_input
 ---
 
 ## Auto Mode
@@ -259,13 +259,13 @@ Write(`${sessionFolder}/wisdom/decisions.md`, '# Decisions\n')
 
 2. **Clarify scope** (skip if AUTO_YES):
    ```javascript
-   AskUserQuestion({
+   request_user_input({
      questions: [{
-       question: "Tech debt governance scope:",
-       header: "Scope Selection",
-       multiSelect: false,
+       question: "Select tech debt governance scope.",
+       header: "Scope",
+       id: "debt_scope",
        options: [
-         { label: "Full project scan", description: "Scan entire codebase" },
+         { label: "Full scan (Recommended)", description: "Scan entire codebase" },
          { label: "Specific module", description: "Target specific directory" },
          { label: "Custom scope", description: "Specify file patterns" }
        ]
@@ -517,15 +517,15 @@ Session: ${sessionFolder}
 
 // Completion action
 if (!AUTO_YES) {
-  AskUserQuestion({
+  request_user_input({
     questions: [{
-      question: "What next?",
-      header: "Completion",
-      multiSelect: false,
+      question: "Tech debt governance complete. Choose next action.",
+      header: "Done",
+      id: "completion",
       options: [
+        { label: "Close (Recommended)", description: "Archive session" },
         { label: "New target", description: "Run another scan/fix cycle" },
-        { label: "Deep fix", description: "Continue fixing remaining items" },
-        { label: "Close", description: "Archive session" }
+        { label: "Deep fix", description: "Continue fixing remaining items" }
       ]
     }]
   })

.codex/skills/team-tech-debt/agents/plan-approver.md

@@ -36,7 +36,7 @@ Interactive agent for reviewing the tech debt remediation plan at the plan appro
 | Tool | Type | Purpose |
 |------|------|---------|
 | `Read` | built-in | Load plan artifacts and context |
-| `AskUserQuestion` | built-in | Get user approval decision |
+| `request_user_input` | built-in | Get user approval decision |
 | `Write` | built-in | Store approval result |
 
 ### Tool Usage Patterns
@@ -91,13 +91,13 @@ Read("<session>/assessment/priority-matrix.json")
 2. Present decision:
 
 ```javascript
-AskUserQuestion({
+request_user_input({
   questions: [{
     question: "Remediation plan generated. Review and decide:",
-    header: "Plan Approval Gate",
-    multiSelect: false,
+    header: "Plan Approval",
+    id: "plan_approval",
     options: [
-      { label: "Approve", description: "Proceed with fix execution in worktree" },
+      { label: "Approve (Recommended)", description: "Proceed with fix execution in worktree" },
       { label: "Revise", description: "Re-run planner with specific feedback" },
       { label: "Abort", description: "Stop pipeline, keep scan/assessment results" }
     ]