chore: refactor project structure and clean up unused components

- Updated `TODO.md` to reflect new testing tasks and final structure expectations.
- Simplified TypeScript path mappings in `tsconfig.json` for better clarity.
- Revised business logic separation rules in `.cursor/rules` to align with new directory structure.
- Deleted unused client components and services to streamline the codebase.
- Adjusted import paths in scripts to match the new structure.

.cursor/rules/business-logic-separation.mdc

@@ -9,7 +9,7 @@ description: Enforce business logic separation between frontend and backend
 
 All business logic, data processing, and domain rules MUST be implemented in the backend services layer. The frontend is purely for presentation and user interaction.
 
-## ✅ ALLOWED in Frontend ([components/](mdc:components/), [hooks/](mdc:hooks/), [clients/](mdc:clients/))
+## ✅ ALLOWED in Frontend ([src/components/](mdc:src/components/), [src/hooks/](mdc:src/hooks/), [src/clients/](mdc:src/clients/))
 
 ### Components
 - UI rendering and presentation logic
@@ -73,7 +73,7 @@ const calculateTeamVelocity = (sprints) => {
 // This belongs in services/team-analytics.ts
 ```
 
-## ✅ REQUIRED in Backend ([services/](mdc:services/), [app/api/](mdc:app/api/))
+## ✅ REQUIRED in Backend ([src/services/](mdc:src/services/), [src/app/api/](mdc:src/app/api/))
 
 ### Services Layer
 - All business rules and domain logic

.cursor/rules/components.mdc

@@ -1,10 +1,10 @@
 ---
-globs: components/**/*.tsx
+globs: src/components/**/*.tsx
 ---
 
 # Components Rules
 
-1. UI components MUST be in components/ui/
+1. UI components MUST be in src/components/ui/
 2. Feature components MUST be in their feature folder
 3. Components MUST use clients for data fetching
 4. Components MUST be properly typed

.cursor/rules/project-structure.mdc

@@ -5,26 +5,26 @@ alwaysApply: true
 # Project Structure Rules
 
 1. Backend:
-   - [services/](mdc:services/) - ALL database access
-   - [app/api/](mdc:app/api/) - API routes using services
+   - [src/services/](mdc:src/services/) - ALL database access
+   - [src/app/api/](mdc:src/app/api/) - API routes using services
 
 2. Frontend:
-   - [clients/](mdc:clients/) - HTTP clients
-   - [components/](mdc:components/) - React components (organized by domain)
-   - [hooks/](mdc:hooks/) - React hooks
+   - [src/clients/](mdc:src/clients/) - HTTP clients
+   - [src/components/](mdc:src/components/) - React components (organized by domain)
+   - [src/hooks/](mdc:src/hooks/) - React hooks
 
 3. Shared:
-   - [lib/](mdc:lib/) - Types and utilities
+   - [src/lib/](mdc:src/lib/) - Types and utilities
    - [scripts/](mdc:scripts/) - Utility scripts
 
 Key Files:
 
-- [services/database.ts](mdc:services/database.ts) - Database pool
-- [clients/base/http-client.ts](mdc:clients/base/http-client.ts) - Base HTTP client
-- [lib/types.ts](mdc:lib/types.ts) - Shared types
+- [src/services/database.ts](mdc:src/services/database.ts) - Database pool
+- [src/clients/base/http-client.ts](mdc:src/clients/base/http-client.ts) - Base HTTP client
+- [src/lib/types.ts](mdc:src/lib/types.ts) - Shared types
 
 ❌ FORBIDDEN:
 
-- Database access outside services/
-- HTTP calls outside clients/
-- Business logic in components/
+- Database access outside src/services/
+- HTTP calls outside src/clients/
+- Business logic in src/components/

.cursor/rules/services.mdc

@@ -1,5 +1,5 @@
 ---
-globs: services/*.ts
+globs: src/services/*.ts
 ---
 
 # Services Rules
@@ -7,7 +7,7 @@ globs: services/*.ts
 1. Services MUST contain ALL PostgreSQL queries
 2. Services are the ONLY layer allowed to communicate with the database
 3. Each service MUST:
-   - Use the pool from [services/database.ts](mdc:services/database.ts)
+   - Use the pool from [src/services/database.ts](mdc:src/services/database.ts)
    - Implement proper transaction management
    - Handle errors and logging
    - Validate data before insertion
@@ -37,6 +37,6 @@ export class MyService {
 
 ❌ FORBIDDEN:
 
-- Direct database queries outside services
+- Direct database queries outside src/services
 - Raw SQL in API routes
 - Database logic in components