完善skills；测试用例生成页面功能初步实现

.github/skills/METHOD_ID_REGISTRY.md

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+# METHOD_ID_REGISTRY
+
+## Purpose
+Provide a single source of truth for test method identifiers used across skills.
+
+## Format
+- Recommended output format: `Mxx|方法名`
+- Routing key: `Mxx`
+- Display name: 方法名
+
+## B.1 Black-box Methods (M01-M12)
+| Method ID | 方法名 | 推荐占位符 | Route Skill |
+| --- | --- | --- | --- |
+| M01 | 功能分解 | {{return_value}}, {{state_change}} | generate-test-cases-blackbox |
+| M02 | 等价类划分 | {{return_value}}, {{error_message}} | generate-test-cases-blackbox |
+| M03 | 边界值分析 | {{return_value}}, {{precision_tolerance}} | generate-test-cases-blackbox |
+| M04 | 判定表 | {{state_change}}, {{sequence_event}} | generate-test-cases-blackbox |
+| M05 | 因果图 | {{error_message}}, {{error_handling}} | generate-test-cases-blackbox |
+| M06 | 场景法 | {{sequence_event}}, {{state_change}} | generate-test-cases-blackbox |
+| M07 | 功能图法 | {{state_change}}, {{sequence_event}} | generate-test-cases-blackbox |
+| M08 | 随机测试 | {{resource_usage}}, {{time_constraint}} | generate-test-cases-blackbox |
+| M09 | 猜错法 | {{error_message}}, {{error_handling}} | generate-test-cases-blackbox |
+| M10 | 正交试验法 | {{return_value}}, {{data_persistence}} | generate-test-cases-blackbox |
+| M11 | 组合测试法 | {{return_value}}, {{sequence_event}} | generate-test-cases-blackbox |
+| M12 | 蜕变测试法 | {{pass_criteria}}, {{precision_tolerance}} | generate-test-cases-blackbox |
+
+## B.2 White-box Methods (M13-M18)
+| Method ID | 方法名 | 证据锚点 | Route Skill |
+| --- | --- | --- | --- |
+| M13 | 控制流测试 | 路径编号 | generate-test-cases-whitebox |
+| M14 | 数据流测试 | DU对编号 | generate-test-cases-whitebox |
+| M15 | 程序变异 | 变异体编号 | generate-test-cases-whitebox |
+| M16 | 程序插桩 | 插桩点编号 | generate-test-cases-whitebox |
+| M17 | 域测试 | 域编号 | generate-test-cases-whitebox |
+| M18 | 符号求值 | 约束表达式编号 | generate-test-cases-whitebox |
+
+## Routing Rules
+1. Use Method ID (`Mxx`) as the only routing key.
+2. `M01-M12` route to `generate-test-cases-blackbox`.
+3. `M13-M18` route to `generate-test-cases-whitebox`.
+4. Unknown IDs should be recorded in `method_alignment_report.gaps`.
+
+## Backward Compatibility
+- If input methods are provided as plain method names, map them to Method IDs before routing.
+- Keep Chinese method names for readability in `case_summary`.