feat(waf): complete composable rule orchestration

Add the React Flow rule editor, ordered graph APIs and runtime DAG execution.\n\nPublish rules only on OpenResty reload and reconcile checksum-driven IP group snapshots in bounded shared memory.

internal/apps/agent/nginx/waf_assets_test.go

@@ -0,0 +1,44 @@
+package nginx
+
+import (
+	"path/filepath"
+	"testing"
+
+	lua "github.com/yuin/gopher-lua"
+)
+
+func TestWAFRuntime(t *testing.T) {
+	state := lua.NewState()
+	defer state.Close()
+
+	runtimePath, err := filepath.Abs("waf_runtime.lua")
+	if err != nil {
+		t.Fatal(err)
+	}
+	specPath, err := filepath.Abs("waf_runtime_spec.lua")
+	if err != nil {
+		t.Fatal(err)
+	}
+	state.SetGlobal("WAF_RUNTIME_PATH", lua.LString(runtimePath))
+	if err := state.DoFile(specPath); err != nil {
+		t.Fatalf("WAF runtime specification failed: %v", err)
+	}
+}
+
+func TestWAFIPGroupRefresh(t *testing.T) {
+	state := lua.NewState()
+	defer state.Close()
+
+	modulePath, err := filepath.Abs("waf_ip_groups.lua")
+	if err != nil {
+		t.Fatal(err)
+	}
+	specPath, err := filepath.Abs("waf_ip_groups_spec.lua")
+	if err != nil {
+		t.Fatal(err)
+	}
+	state.SetGlobal("WAF_IP_GROUPS_PATH", lua.LString(modulePath))
+	if err := state.DoFile(specPath); err != nil {
+		t.Fatalf("WAF IP group refresh specification failed: %v", err)
+	}
+}