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/dms/scripts/pack_registry.py

@@ -0,0 +1,51 @@
+"""DMS 多包：data_packs.yaml + ML/workflow.registry.yaml active_packs。"""
+from __future__ import annotations
+
+from pathlib import Path
+
+import yaml
+
+
+def load_packs_registry(root: Path) -> dict:
+    p = root / "data_packs.yaml"
+    if not p.is_file():
+        raise SystemExit(f"缺少 {p}")
+    return yaml.safe_load(p.read_text(encoding="utf-8"))
+
+
+def ml_workflow_path(dataset_root: Path) -> Path:
+    # workspace/DMS/DATASET -> DATA/HSAP/workflow.registry.yaml
+    return dataset_root.resolve().parent.parent.parent / "ML" / "workflow.registry.yaml"
+
+
+def load_active_pack_names(dataset_root: Path, cli_packs: list[str] | None = None) -> list[str]:
+    if cli_packs:
+        return cli_packs
+    wf_path = ml_workflow_path(dataset_root)
+    if wf_path.is_file():
+        wf = yaml.safe_load(wf_path.read_text(encoding="utf-8"))
+        active = wf.get("projects", {}).get("dms", {}).get("active_packs")
+        if active:
+            return list(active)
+    reg = load_packs_registry(dataset_root)
+    return [reg["packs"][0]["name"]] if reg.get("packs") else []
+
+
+def resolve_pack_dir(root: Path, pack_name: str) -> Path:
+    reg = load_packs_registry(root)
+    name = reg.get("aliases", {}).get(pack_name, pack_name)
+    for item in reg.get("packs", []):
+        if item.get("name") == name:
+            return (root / item["path"]).resolve()
+    candidate = root / name
+    if candidate.is_dir():
+        return candidate.resolve()
+    raise SystemExit(f"未知数据包: {pack_name}，已登记: {[p['name'] for p in reg.get('packs', [])]}")
+
+
+def task_data_root(dataset_root: Path, pack_name: str, task_dir: str) -> Path:
+    return resolve_pack_dir(dataset_root, pack_name) / task_dir
+
+
+def list_registered_packs(root: Path) -> list[dict]:
+    return load_packs_registry(root).get("packs", [])