fix: Reorder router registration to fix route matching

app/main.py

@@ -30,10 +30,10 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
-# 라우터 등록
-app.include_router(plants.router)
-app.include_router(upload.router)
-app.include_router(stats.router)
+# 라우터 등록 (순서 중요: 더 구체적인 경로를 먼저 등록)
+app.include_router(stats.router)   # /plants/{plant_id}/stats
+app.include_router(upload.router)  # /plants/{plant_id}/upload
+app.include_router(plants.router)  # /plants/{company_id} (가장 일반적인 경로)
 
 
 @app.get("/", tags=["Health"])