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>

Makefile

@@ -0,0 +1,23 @@
+.PHONY: up down dev logs build ps health
+
+up:
+	bash scripts/dev_up.sh
+
+dev:
+	docker compose --profile dev up -d --build web-dev
+	@echo "Vite: http://127.0.0.1:5173"
+
+down:
+	docker compose --profile dev down
+
+logs:
+	docker compose logs -f platform worker
+
+ps:
+	docker compose ps
+
+build:
+	docker compose build
+
+health:
+	@curl -s http://127.0.0.1:8787/api/v1/health 2>/dev/null | python3 -m json.tool || echo "平台未启动"