chore: Remove unused redirect endpoint (#95)

[rbardaji]

Removes the unused GET /redirect/{service_name} endpoint and all associated code.

Changes

• Remove api/routes/redirect_route.py
• Remove redirect router import from api/routes/__init__.py
• Remove redirect router inclusion from api/main.py

Impact

• Reduces code complexity and technical debt
• Removes unused API endpoint from documentation
• No functional impact as endpoint was not being used

Closes #95