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>

scripts/quant/manifest.py

@@ -0,0 +1,18 @@
+"""Load the fixed eval-set manifest (one image filename per line)."""
+from __future__ import annotations
+
+from pathlib import Path
+from typing import List
+
+
+def load_manifest(manifest_path: Path, image_root: Path) -> List[Path]:
+    paths: List[Path] = []
+    for raw in manifest_path.read_text(encoding="utf-8").splitlines():
+        name = raw.strip()
+        if not name or name.startswith("#"):
+            continue
+        image = image_root / name
+        if not image.exists():
+            raise FileNotFoundError(f"manifest image not found: {name} (looked in {image_root})")
+        paths.append(image)
+    return paths