feat: 工资查询助手首版 v1.0.105

基于 skill-template 脚手架开发，包含：
- payroll_config（费率配置，可编辑）+ payslip_snapshots（解析历史，只读）2 张业务表
- 全国默认 + 北上广 4 套费率（社保/公积金/个税起征点/7 级税率表）
- 5 个业务 Action：calculate-payslip-simple / calculate-payslip-full / explain-term / view-config / edit-config
- 个税累计预扣法计算，支持多月历史累加
- 20 个薪资名词库（社保/公积金/个税/全勤/加班费等）
- 完整市场文档（README/TUTORIAL/DEMO/CHANGELOG）
- 296 测试全部通过

assets/examples/visible-when-action.example.json

@@ -0,0 +1,72 @@
+{
+  "_comment": "形状参考：互斥模式用 inputSchema.properties.*.visibleWhen 联动显隐，勿只靠 description 灰字。完整契约见 references/ACTIONS.md「字段条件显隐」。勿与 POLICY.md L3 行态 visibleWhen 混淆。",
+  "schemaVersion": 1,
+  "skill": "query-payslip-default",
+  "actions": [
+    {
+      "id": "scrape-links-demo",
+      "label": "采集链接（示例）",
+      "description": "演示按采集方式切换参数：关键词路径 vs 作者主页路径。",
+      "placements": ["toolbar"],
+      "executionProfile": "async",
+      "interaction": "form",
+      "bind": {
+        "tables": ["demo_items"]
+      },
+      "confirmation": {
+        "message": "将按所选方式采集链接（示例确认文案）。是否继续？"
+      },
+      "entrypoint": {
+        "type": "cli",
+        "command": "run",
+        "args": [
+          "--collect-mode",
+          "{{collectMode}}",
+          "--keyword",
+          "{{keyword}}",
+          "--author-url",
+          "{{authorUrl}}",
+          "--max-count",
+          "{{maxCount}}"
+        ]
+      },
+      "inputSchema": {
+        "type": "object",
+        "required": ["collectMode"],
+        "properties": {
+          "collectMode": {
+            "type": "string",
+            "title": "采集方式",
+            "description": "先选方式，下方只出现对应参数。",
+            "enum": ["按关键词采集", "按作者主页采集"],
+            "default": "按关键词采集"
+          },
+          "keyword": {
+            "type": "string",
+            "title": "关键词",
+            "description": "例如 rpa。",
+            "visibleWhen": {
+              "field": "collectMode",
+              "equals": "按关键词采集"
+            }
+          },
+          "authorUrl": {
+            "type": "string",
+            "title": "作者主页链接",
+            "description": "例如 https://example.com/author/...",
+            "display_type": "url",
+            "visibleWhen": {
+              "collectMode": "按作者主页采集"
+            }
+          },
+          "maxCount": {
+            "type": "number",
+            "title": "数量上限",
+            "default": 50,
+            "minimum": 1
+          }
+        }
+      }
+    }
+  ]
+}