chore: 允许 ai-service Python 文件入库（.gitignore 例外）

ai-service/app/main.py

@@ -0,0 +1,38 @@
+from fastapi import FastAPI, File, HTTPException, UploadFile
+
+from . import config
+from .detector import MockDetector, ONNXDetector
+
+app = FastAPI(title="Silk AI Service", version="0.1.0")
+
+if config.MODEL_MODE == "onnx":
+    detector = ONNXDetector(config.MODEL_PATH, tuple(config.MODEL_LABELS))
+else:
+    detector = MockDetector(class_name=config.MOCK_CLASS, confidence=config.MOCK_CONFIDENCE)
+
+
+@app.get("/health")
+def health():
+    return {"status": "ok", "model": config.MODEL_MODE}
+
+
+@app.post("/detect")
+async def detect(file: UploadFile = File(...)):
+    data = await file.read()
+    if not data:
+        raise HTTPException(status_code=400, detail="图片为空")
+    try:
+        detections = detector.detect(data)
+    except ValueError as exc:
+        raise HTTPException(status_code=400, detail=str(exc)) from exc
+    return {
+        "model": config.MODEL_MODE,
+        "detections": [
+            {
+                "bbox": d["bbox"],
+                "class": d["class_name"],
+                "confidence": d["confidence"],
+            }
+            for d in detections
+        ],
+    }