feat(cli): Add argument hints for batch, loop, qc-helper, and review skills

packages/core/src/skills/bundled/batch/SKILL.md

@@ -1,6 +1,7 @@
 ---
 name: batch
 description: Execute batch operations on multiple files in parallel. Automatically discovers files, splits into chunks, and processes with parallel worker agents. Use `/batch` followed by operation and file pattern.
+argument-hint: '<operation> <file-pattern>'
 allowedTools:
   - task
   - glob

packages/core/src/skills/bundled/loop/SKILL.md

@@ -1,6 +1,7 @@
 ---
 name: loop
 description: Create a recurring loop that runs a prompt on a schedule. Usage - /loop 5m check the build, /loop check the PR every 30m, /loop run tests (defaults to 10m). /loop list to show jobs, /loop clear to cancel all.
+argument-hint: '[interval] <prompt> | list | clear'
 allowedTools:
   - cron_create
   - cron_list

packages/core/src/skills/bundled/qc-helper/SKILL.md

@@ -1,6 +1,7 @@
 ---
 name: qc-helper
 description: Answer any question about Qwen Code usage, features, configuration, and troubleshooting by referencing the official user documentation. Also helps users view or modify their settings.json. Invoke with `/qc-helper` followed by a question, e.g. `/qc-helper how do I configure MCP servers?` or `/qc-helper change approval mode to yolo`.
+argument-hint: '<question>'
 allowedTools:
   - read_file
   - edit_file

packages/core/src/skills/bundled/review/SKILL.md

@@ -1,6 +1,7 @@
 ---
 name: review
 description: Review changed code for correctness, security, code quality, and performance. Use when the user asks to review code changes, a PR, or specific files. Invoke with `/review`, `/review <pr-number>`, `/review <file-path>`, or `/review <pr-number> --comment` to post inline comments on the PR.
+argument-hint: '[pr-number|file-path] [--comment]'
 allowedTools:
   - task
   - run_shell_command