feat: add frontend development guidelines and structure documentation

- Introduced API guidelines for interface contracts and request handling.
- Added design tokens usage guidelines for consistent styling across the project.
- Established DTO guidelines for defining request parameters and response data types.
- Created frontend structure guidelines to clarify directory organization and code placement rules.
- Compiled a comprehensive frontend development guideline document covering various aspects of the development process.
- Implemented quality guidelines to ensure code maintainability and adherence to best practices.

AI-RD-Workflow/30-templates/test-case.md

@@ -0,0 +1,26 @@
+---
+id: TC-yyyymmdd-nnn
+case_id: REQ-yyyymmdd-nnn-short-name
+type: test-case
+stage: test
+owner_role: QA
+status: draft
+source_ids:
+  - TP-yyyymmdd-nnn
+derived_ids: []
+skill:
+  name: test-case-generate
+  version: 0.1.0
+created: yyyy-mm-dd
+updated: yyyy-mm-dd
+---
+
+# 测试用例
+
+| 用例 ID | 类型 | 来源 ID | 前置条件 | 步骤 | 预期结果 | 优先级 |
+| --- | --- | --- | --- | --- | --- | --- |
+| TC-yyyymmdd-001 | positive | DR-yyyymmdd-nnn |  |  |  | P0 |
+
+## 覆盖缺口
+
+## 风险说明