refactor(skill): 18 个命令型技能转 user-invoked，压目录预算

- biz-* 4 个、integration-* 8 个、dev-android/ios/pda、publish、ai-proj-cicd-release、ai-proj-macos-release
- 均加 metadata.invocation: user-invoked + disable-model-invocation: true（DSH 实测生效）
- catalog: promoted/model-invoked 40、promoted/user-invoked 18、beta 3

skills-biz/biz-contract-plugin/.claude-plugin/plugin.json

@@ -7,5 +7,6 @@
   },
   "install_name": "biz-contract",
   "install_type": "skill",
-  "dir_category": "biz"
+  "dir_category": "biz",
+  "invocation": "user-invoked"
 }

skills-biz/biz-contract-plugin/skills/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: biz-contract
 description: 商务合同撰写。支持多种合同类型：软件订阅合同、软件定制开发合同、物流合同、销售服务合同、贸易合同等。当用户提到合同、协议、签约、合作协议相关任务时自动激活。
+metadata:
+  invocation: user-invoked
+disable-model-invocation: true
 ---
 
 # 商务合同撰写技能 (biz-contract)