feat: add growth tracking page and related functionality

- Implemented a new Growth page to track practice time and trends.
- Added API integration for fetching review data.
- Created components for displaying practice statistics and trends.
- Updated navigation titles for the main index and growth pages.
- Removed unused styles from the index page.
- Introduced a Projects management page for adding and editing practice projects.
- Developed a Record form for logging practice sessions with validation.
- Added utility functions for date manipulation and duration formatting.
- Implemented error handling and session management in the practice service.
- Created unit tests for the practice service to ensure reliability.

docs/agents/triage-labels.md

@@ -0,0 +1,15 @@
+# Triage Labels
+
+技能中的五种标准分流角色映射如下。
+本地 Markdown 事项的 `Status:` 行使用“本仓库标签”列。
+
+| 标准角色 | 本仓库标签 | 含义 |
+| --- | --- | --- |
+| needs-triage | needs-triage | 等待维护者评估 |
+| needs-info | needs-info | 等待补充信息 |
+| ready-for-agent | ready-for-agent | 需求明确，可交由代理实现 |
+| ready-for-human | ready-for-human | 需要人工实现 |
+| wontfix | wontfix | 不予处理 |
+
+技能提及某个分流角色时，使用对应的本仓库标签。
+后续调整标签名称时，修改本仓库标签列。