feat(ocr): add PaddleOCR GPU Docker image and FastAPI OCR server with entrypoint; implement OCR endpoints and consensus extraction testing

image_support_files/paddleocr-entrypoint.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+set -e
+
+# Configuration from environment
+OCR_LANGUAGE="${OCR_LANGUAGE:-en}"
+SERVER_PORT="${SERVER_PORT:-5000}"
+SERVER_HOST="${SERVER_HOST:-0.0.0.0}"
+
+echo "Starting PaddleOCR Server..."
+echo "  Language: ${OCR_LANGUAGE}"
+echo "  Host: ${SERVER_HOST}"
+echo "  Port: ${SERVER_PORT}"
+
+# Check GPU availability
+if [ "${CUDA_VISIBLE_DEVICES}" = "-1" ]; then
+    echo "  GPU: Disabled (CPU mode)"
+else
+    echo "  GPU: Enabled"
+fi
+
+# Start the FastAPI server with uvicorn
+exec python -m uvicorn paddleocr-server:app \
+    --host "${SERVER_HOST}" \
+    --port "${SERVER_PORT}" \
+    --workers 1