refactor(developer-config): 移除开发者配置页面相关代码和文档

- 删除应用配置页面及相关组件，重构路由为 /developer/config/[id].vue
- 移除开发者文档页面及其导航与样式实现
- 清理开发者侧功能完善工作日志文件
- 删除全局.gitignore配置文件，清理无用忽略规则
- 优化应用配置页面的参数读取和路由结构，解决刷新404问题
- 解决数据库配置唯一键冲突，调整保存逻辑避免重复插入
- 移除对后端配置加密字段的 secret 标记，修正加密异常问题

app/config/oa-nav.ts

@@ -5,6 +5,14 @@ export type OaNavItem = {
 }
 
 export const oaNav: OaNavItem[] = [
-  { key: 'oa-home', label: '概览', to: '/oa' }
+  { key: 'oa-home', label: '概览', to: '/oa' },
+  { key: 'oa-projects', label: '项目管理', to: '/oa/projects' },
+  { key: 'oa-tasks', label: '任务看板', to: '/oa/tasks' },
+  { key: 'oa-documents', label: '文档协同', to: '/oa/documents' },
+  { key: 'oa-meetings', label: '会议管理', to: '/oa/meetings' },
+  { key: 'oa-approvals', label: '审批流程', to: '/oa/approvals' },
+  { key: 'oa-teams', label: '团队协作', to: '/oa/teams' },
+  { key: 'oa-calendar', label: '日程日历', to: '/oa/calendar' },
+  { key: 'oa-chat', label: '即时通讯', to: '/oa/chat' }
 ]