feat: initial HSAP platform

Huaxu Sentinel Active Safety Platform with embedded algorithm code,
Docker Compose setup, and vendored dataset scaffolds for clone-and-run.

Co-authored-by: Cursor <cursoragent@cursor.com>

datasets/lane/datasets_registry.json

@@ -0,0 +1,18 @@
+{
+  "schema": "ufld-multi-pack-v1",
+  "parent_root": "/home/chengfanglu/DATA/workspace/lane",
+  "base_pack": "lane_v1",
+  "aliases": {
+    "lane_v1": "DATASET",
+    "DATASET": "DATASET"
+  },
+  "packs": [
+    {
+      "name": "lane_v1",
+      "path": "DATASET",
+      "role": "baseline_v1",
+      "frozen": true
+    }
+  ],
+  "merged_train_lists": {}
+}