📝 docs(prd): adjust story order in mini auth modules integration document

- swap positions of story 3 and story 4 in stage 2 task list
- maintain consistent module grouping logic in development roadmap

docs/prd/epic-005-mini-auth-modules-integration.md

@@ -545,9 +545,8 @@ import {
 ### 待完成 🔄
 - **阶段 2: 业务模块 Package 化** - 待实现
   - **Story 2:** 地区模块 package (geo-areas)
-  - **Story 3:** 地理位置和乘客模块 package (geo-locations, passenger-management)
-  - **Story 4:** 小程序生态模块 package (mini-auth, mini-payment)
-
+  - **Story 3:** 小程序生态模块 package (mini-auth, mini-payment)
+  - **Story 4:** 地理位置和乘客模块 package (geo-locations, passenger-management)
 ## Story Manager Handoff
 
 "请为这个brownfield epic开发详细的用户故事。关键考虑因素：