refactor: replace SessionDep with explicit Annotated[Session, Depends(get_session)] across all routers

- Replace SessionDep type alias with explicit Annotated[Session, Depends(get_session)]
- Add missing imports for Session, Annotated, and Depends types
- Update all endpoint function signatures to use explicit dependency annotation
- Remove redundant `= Depends()` default values from session parameters
- Update docstrings and comments to reference new annotation pattern
- Apply changes consistently across all router

docs/workflows/documentation-updates-completed.md

@@ -22,7 +22,7 @@ Successfully executed the documentation updates workflow to incorporate the comp
 - **Updated Completion Status**: Marked test integration as ✅ COMPLETE
 - **Enhanced CLI Documentation**: Updated CLI docs with testing integration
 - **Added Testing Sections**: Created comprehensive testing documentation sections
-- **Status Consistency**: Ensured uniform ✅ COMPLETE, ✅ COMPLETE, 🔄 NEXT markers
+- **Status Consistency**: Ensured uniform ✅ COMPLETE, ✅ COMPLETE, ✅ COMPLETE markers
 
 ### ✅ Step 3: Quality Assurance Checks
 - **Markdown Formatting**: Validated markdown formatting and structure