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

tests/test_cell_presentation_contract.py

@@ -0,0 +1,93 @@
+# -*- coding: utf-8 -*-
+"""Cell Presentation 契约：schema + 文档 + 示例。"""
+from __future__ import annotations
+
+import json
+import os
+import unittest
+
+from util.runtime_paths import get_skill_root
+
+
+def _load_schema() -> dict:
+    path = os.path.join(
+        get_skill_root(),
+        "assets",
+        "schemas",
+        "skill-cell-presentation.schema.json",
+    )
+    with open(path, encoding="utf-8") as f:
+        return json.load(f)
+
+
+def _load_example() -> dict:
+    path = os.path.join(
+        get_skill_root(),
+        "assets",
+        "examples",
+        "skill-cell-presentation.example.json",
+    )
+    with open(path, encoding="utf-8") as f:
+        return json.load(f)
+
+
+class TestCellPresentationContract(unittest.TestCase):
+    def test_schema_file_exists_and_parses(self) -> None:
+        schema = _load_schema()
+        self.assertEqual(schema.get("title"), "SkillCellPresentationDocument")
+        self.assertIs(schema.get("additionalProperties"), False)
+        self.assertEqual(schema["properties"]["schemaVersion"].get("const"), 1)
+        tones = set(schema["$defs"]["tone"].get("enum") or [])
+        self.assertEqual(tones, {"danger", "warning", "info", "success", "muted"})
+
+    def test_example_validates_against_schema(self) -> None:
+        try:
+            import jsonschema
+        except ImportError:
+            self.skipTest("jsonschema not installed")
+        jsonschema.validate(instance=_load_example(), schema=_load_schema())
+
+    def test_actions_schema_defines_cell_presentation_enable_block(self) -> None:
+        path = os.path.join(
+            get_skill_root(), "assets", "schemas", "skill-actions.schema.json"
+        )
+        with open(path, encoding="utf-8") as f:
+            actions_schema = json.load(f)
+        self.assertIn("cellPresentation", actions_schema["properties"])
+        self.assertIn("cellPresentationDeclaration", actions_schema["$defs"])
+
+    def test_docs_and_example_exist(self) -> None:
+        root = get_skill_root()
+        self.assertTrue(os.path.isfile(os.path.join(root, "references", "CELL_PRESENTATION.md")))
+        self.assertTrue(
+            os.path.isfile(
+                os.path.join(root, "assets", "schemas", "skill-cell-presentation.schema.json")
+            )
+        )
+        self.assertTrue(
+            os.path.isfile(
+                os.path.join(root, "assets", "examples", "skill-cell-presentation.example.json")
+            )
+        )
+
+    def test_cell_presentation_md_covers_contract(self) -> None:
+        path = os.path.join(get_skill_root(), "references", "CELL_PRESENTATION.md")
+        with open(path, encoding="utf-8") as f:
+            text = f.read()
+        for marker in (
+            "tone",
+            "danger",
+            "warning",
+            "alert",
+            "_jiangchang_cell_presentation",
+            "cellPresentation",
+            "派生",
+            "任意 CSS",
+            "用途不限",
+            "schemaVersion",
+        ):
+            self.assertIn(marker, text, msg=f"CELL_PRESENTATION.md missing {marker!r}")
+
+
+if __name__ == "__main__":
+    unittest.main()