Enhance HRIStudio with immersive experiment designer and comprehensive documentation updates

- Introduced a new immersive experiment designer using React Flow, providing a professional-grade visual flow editor for creating experiments.
- Added detailed documentation for the flow designer connections and ordering system, emphasizing its advantages and implementation details.
- Updated existing documentation to reflect the latest features and improvements, including a streamlined README and quick reference guide.
- Consolidated participant type definitions into a new file for better organization and clarity.

Features:
- Enhanced user experience with a node-based interface for experiment design.
- Comprehensive documentation supporting new features and development practices.

Breaking Changes: None - existing functionality remains intact.

src/server/api/routers/users.ts

@@ -9,10 +9,10 @@ import {
   protectedProcedure,
 } from "~/server/api/trpc";
 import {
+  studyMembers,
   systemRoleEnum,
   users,
   userSystemRoles,
-  studyMembers,
 } from "~/server/db/schema";
 
 export const usersRouter = createTRPCRouter({