phase 4

core/gpu/config.py

@@ -0,0 +1,39 @@
+"""
+Runtime config — loaded from env, mutable via API.
+
+The UI config panel is just a visual editor for these same values.
+"""
+
+from __future__ import annotations
+
+import os
+
+_config = {
+    "device": os.environ.get("DEVICE", "auto"),
+    "yolo_model": os.environ.get("YOLO_MODEL", "yolov8n.pt"),
+    "yolo_confidence": float(os.environ.get("YOLO_CONFIDENCE", "0.3")),
+    "vram_budget_mb": int(os.environ.get("VRAM_BUDGET_MB", "10240")),
+    "strategy": os.environ.get("STRATEGY", "sequential"),
+    "ocr_languages": os.environ.get("OCR_LANGUAGES", "en").split(","),
+    "ocr_min_confidence": float(os.environ.get("OCR_MIN_CONFIDENCE", "0.5")),
+}
+
+
+def get_config() -> dict:
+    return _config
+
+
+def update_config(changes: dict) -> dict:
+    _config.update(changes)
+    return _config
+
+
+def get_device() -> str:
+    device = _config["device"]
+    if device != "auto":
+        return device
+    try:
+        import torch
+        return "cuda" if torch.cuda.is_available() else "cpu"
+    except ImportError:
+        return "cpu"