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>

platform/as_platform/api/__main__.py

@@ -0,0 +1,14 @@
+import sys
+from pathlib import Path
+
+_ROOT = Path(__file__).resolve().parents[3]  # HSAP repo root
+_PLATFORM = _ROOT / "platform"
+for p in (_ROOT, _PLATFORM):
+    s = str(p)
+    if s not in sys.path:
+        sys.path.insert(0, s)
+
+from as_platform.api.server import main
+
+if __name__ == "__main__":
+    main()