Initial MVP application skeleton

Add PySide6 camera UI, YOLO/Tesseract detection pipeline, capture metadata, configuration, and project gitignore.

app_config.json

@@ -0,0 +1,53 @@
+{
+  "camera": {
+    "index": 0,
+    "width": 1920,
+    "height": 1080,
+    "fps": 30,
+    "backend": "auto",
+    "properties": {
+      "brightness": null,
+      "contrast": null,
+      "saturation": null,
+      "hue": null,
+      "gain": null,
+      "exposure": null,
+      "sharpness": null,
+      "auto_exposure": null,
+      "focus": null,
+      "auto_focus": null
+    }
+  },
+  "detection": {
+    "model_path": "models/best.pt",
+    "confidence_threshold": 0.25,
+    "mode": "best",
+    "frame_stride": 5,
+    "image_size": 640,
+    "device": "cpu"
+  },
+  "ocr": {
+    "enabled": true,
+    "language": "eng",
+    "tesseract_cmd": null,
+    "threshold": true,
+    "scale": 2.0
+  },
+  "capture": {
+    "photos_dir": "captures/photos",
+    "videos_dir": "captures/videos",
+    "image_extension": "jpg",
+    "video_extension": "mp4",
+    "video_codec": "mp4v"
+  },
+  "label_data": {
+    "models": [
+      "Regius",
+      "Duvell"
+    ],
+    "colors": [
+      "T-NF-BLK-OUT-BST-G",
+      "T-BLK-G"
+    ]
+  }
+}