Fix API route paths - remove duplicate /api prefix

app.py

@@ -426,13 +426,13 @@ async def root():
         "message": "SRMA-Mamba Liver Segmentation API",
         "version": "1.0.0",
         "endpoints": {
-            "/api/segment": "POST - Upload NIfTI file for segmentation",
-            "/api/health": "GET - Health check",
+            "/segment": "POST - Upload NIfTI file for segmentation",
+            "/health": "GET - Health check",
             "/docs": "API documentation"
         }
     }
 
-@api_app.get("/api/health")
+@api_app.get("/health")
 async def health_check():
     return {
         "status": "healthy",
@@ -441,7 +441,7 @@ async def health_check():
         "model_t2_loaded": MODEL_T2 is not None
     }
 
-@api_app.post("/api/segment")
+@api_app.post("/segment")
 async def segment_liver(
     file: UploadFile = File(...),
     modality: str = Form("T1"),