Add base backend api root page

Signed-off-by: Felipe Cardoso <felipe.cardoso@hotmail.it>

backend/app/main.py

@@ -1,3 +1,7 @@
+import platform
+from datetime import datetime, timezone
+
+import psutil
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
@@ -24,6 +28,32 @@ app.include_router(training.router, prefix=f"{settings.API_VER_STR}/training", t
 app.include_router(samples.router, prefix=f"{settings.API_VER_STR}/samples", tags=["samples"])
 
 
+@app.get("/")
+async def root():
+    """
+    Root endpoint providing API status and system information
+    """
+    return {
+        "name": "Training Monitor API",
+        "version": "1.0.0",
+        "status": "operational",
+        "timestamp": datetime.now(timezone.utc).isoformat(),
+        "system_info": {
+            "cpu_usage": f"{psutil.cpu_percent()}%",
+            "memory_usage": f"{psutil.virtual_memory().percent}%",
+            "platform": platform.platform(),
+            "python": platform.python_version(),
+        },
+        "endpoints": {
+            "docs": "/docs",
+            "health": "/health",
+            "training_status": "/api/v1/training/status",
+            "training_log": "/api/v1/training/log",
+            "samples_list": "/api/v1/samples/list",
+            "samples_latest": "/api/v1/samples/latest"
+        }
+    }
+
 @app.get("/health")
 async def health_check():
     return {"status": "healthy"}

backend/requirements.txt

@@ -10,4 +10,5 @@ python-dotenv>=1.0.0
 aiofiles>=23.2.1
 pytest>=7.4.3
 httpx>=0.25.1
-pytest-asyncio>=0.21.1
+pytest-asyncio>=0.21.1
+psutil>=5.9.8