chore: normalize line endings (CRLF -> LF)

No content changes: git diff --ignore-all-space over these files is empty.
The churn came from editing on Windows against a repo checked out with LF.

backend/config/vllm_config.yaml

@@ -1,7 +1,7 @@
-# vLLM backend tuning for paddleocr genai_server
-# Docs: https://www.paddleocr.ai/latest/en/version3.x/pipeline_usage/PaddleOCR-VL.html#331-server-side-parameter-adjustment
-gpu-memory-utilization: 0.35
-max-num-seqs: 4
-enforce-eager: true
-max-model-len: 2048
-max-num-batched-tokens: 2048
+# vLLM backend tuning for paddleocr genai_server
+# Docs: https://www.paddleocr.ai/latest/en/version3.x/pipeline_usage/PaddleOCR-VL.html#331-server-side-parameter-adjustment
+gpu-memory-utilization: 0.35
+max-num-seqs: 4
+enforce-eager: true
+max-model-len: 2048
+max-num-batched-tokens: 2048