Serve full frontend dist in FastAPI for public assets

backend/app/main.py

@@ -4,7 +4,6 @@ from pathlib import Path
 
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
-from fastapi.responses import FileResponse
 from fastapi.staticfiles import StaticFiles
 
 from app.api import elaboracao, health, session, visualizacao
@@ -36,11 +35,9 @@ def _mount_frontend_if_exists() -> None:
     if not index_file.exists():
         return
 
-    app.mount("/assets", StaticFiles(directory=frontend_dist / "assets"), name="assets")
-
-    @app.get("/{full_path:path}", include_in_schema=False)
-    def serve_spa(full_path: str) -> FileResponse:
-        return FileResponse(index_file)
+    # Serve the entire Vite build output so root-level files from public/
+    # (e.g. /logo_mesa.png) and hashed /assets files are both available.
+    app.mount("/", StaticFiles(directory=frontend_dist, html=True), name="frontend")
 
 
 _mount_frontend_if_exists()