docs: new repo URL (andrew/...), requirements.txt, pytest smoke tests + CI

tests/test_config.py

@@ -0,0 +1,28 @@
+"""Smoke tests for config loader (src/config.py). Needs python-dotenv only."""
+
+from src.config import load_config
+
+_KEYS = [
+    "LOCAL_RTSP", "JETSON_RTSP", "MODEL_SACK_PATH", "MODEL_TRUCK_PATH",
+    "COUNTING_LINE_Y", "COUNTING_LINE_X_START", "COUNTING_LINE_X_END",
+    "SACK_CONF_THRESHOLD", "TRUCK_CONF_THRESHOLD", "BATCH_TIMEOUT_SECONDS",
+    "CSV_OUTPUT_DIR", "DATA_SEED",
+]
+
+
+def test_load_from_env_file(tmp_path, monkeypatch):
+    for k in _KEYS:
+        monkeypatch.delenv(k, raising=False)
+    env = tmp_path / "test.env"
+    env.write_text(
+        "LOCAL_RTSP=rtsp://cam/1\n"
+        "MODEL_SACK_PATH=/m/sack.pt\n"
+        "MODEL_TRUCK_PATH=/m/truck.pt\n"
+        "SACK_CONF_THRESHOLD=0.55\n"
+    )
+    cfg = load_config(str(env))
+    assert cfg.local_rtsp == "rtsp://cam/1"
+    assert cfg.sack_model_path == "/m/sack.pt"
+    assert cfg.truck_model_path == "/m/truck.pt"
+    assert cfg.sack_conf == 0.55
+    assert cfg.truck_conf == 0.50  # default preserved