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/agents/graphs/labeling_flow.py

@@ -0,0 +1,20 @@
+"""labeling_flow：列出 raw_pool / out_for_labeling 批次。"""
+from __future__ import annotations
+
+from typing import Any
+
+from as_platform.agents.tools import invoke_tool
+from as_platform.agents.trace import start_trace, trace_span
+
+
+def run_labeling_flow(*, task: str | None = None) -> dict[str, Any]:
+    trace_id = start_trace("labeling_flow", task=task)
+    with trace_span("list_pending"):
+        report = invoke_tool("list_pending_batches")
+
+    batches = [
+        b for b in report.get("batches", [])
+        if b.get("stage") in ("raw_pool", "out_for_labeling", "returned")
+        and (task is None or b.get("task") == task)
+    ]
+    return {"trace_id": trace_id, "batches": batches, "count": len(batches)}