Suya OCR API — vLLM-backed, OpenAI-compatible OCR service

FastAPI service wrapping the Surya-OCR-2 model (datalab-to) served through vLLM:
legacy /v1/api/ai/* endpoints, an OpenAI-compatible /v1/chat/completions endpoint,
a coalescing request batcher, a local OCR CLI, Docker packaging, multilingual
example outputs, and quantization/concurrency benchmarks.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,25 @@
+# Keep the build context small — none of this is needed at runtime.
+.git
+.venv-quant
+.venv
+venv
+*.venv
+.pytest_cache
+__pycache__
+**/__pycache__
+*.pyc
+results
+baseline_outputs
+eval_set
+docs
+tests
+logs/*.log
+concurrency_*.json
+concurrency_*.csv
+concurrency_*.png
+concurrency_sweep.py
+concurrency_test.py
+*.md
+temp_image_*.png
+temp_image_*.jpg
+temp_image_*.jpeg