fix tune reporting

src/paddle_ocr_raytune_rest.ipynb

@@ -24,9 +24,7 @@
    "id": "deps",
    "metadata": {},
    "outputs": [],
-   "source": [
-    "%pip install -q -U \"ray[tune]\" optuna requests pandas"
-   ]
+   "source": "# Pin Ray version for API stability (tune.report takes dict, not kwargs in 2.x)\n%pip install -q \"ray[tune]==2.53.0\" optuna requests pandas"
   },
   {
    "cell_type": "code",
@@ -34,18 +32,7 @@
    "id": "setup",
    "metadata": {},
    "outputs": [],
-   "source": [
-    "from raytune_ocr import (\n",
-    "    check_workers, create_trainable, run_tuner, analyze_results, correlation_analysis,\n",
-    "    paddle_ocr_payload, PADDLE_OCR_SEARCH_SPACE, PADDLE_OCR_CONFIG_KEYS,\n",
-    ")\n",
-    "\n",
-    "# Worker ports\n",
-    "PORTS = [8001, 8002]\n",
-    "\n",
-    "# Check workers are running\n",
-    "healthy = check_workers(PORTS, \"PaddleOCR\")"
-   ]
+   "source": "from raytune_ocr import (\n    check_workers, create_trainable, run_tuner, analyze_results, correlation_analysis,\n    paddle_ocr_payload, PADDLE_OCR_SEARCH_SPACE, PADDLE_OCR_CONFIG_KEYS,\n)\n\n# Worker ports (3 workers to avoid OOM)\nPORTS = [8001, 8002, 8003]\n\n# Check workers are running\nhealthy = check_workers(PORTS, \"PaddleOCR\")"
   },
   {
    "cell_type": "code",
@@ -53,17 +40,7 @@
    "id": "tune",
    "metadata": {},
    "outputs": [],
-   "source": [
-    "# Create trainable and run tuning\n",
-    "trainable = create_trainable(PORTS, paddle_ocr_payload)\n",
-    "\n",
-    "results = run_tuner(\n",
-    "    trainable=trainable,\n",
-    "    search_space=PADDLE_OCR_SEARCH_SPACE,\n",
-    "    num_samples=64,\n",
-    "    num_workers=len(healthy),\n",
-    ")"
-   ]
+   "source": "# Create trainable and run tuning\ntrainable = create_trainable(PORTS, paddle_ocr_payload)\n\nresults = run_tuner(\n    trainable=trainable,\n    search_space=PADDLE_OCR_SEARCH_SPACE,\n    num_samples=128,\n    num_workers=len(healthy),\n)"
   },
   {
    "cell_type": "code",
@@ -107,4 +84,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 5
-}
+}