feat(import): persist official model release metadata

scripts/official_import_scripts_test.go

@@ -0,0 +1,46 @@
+//go:build llm_script
+
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestOfficialImportScriptsWriteModelSourceURLAndReleaseDate(t *testing.T) {
+	projectRoot, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("getwd: %v", err)
+	}
+
+	scriptDir := projectRoot
+	if filepath.Base(projectRoot) != "scripts" {
+		scriptDir = filepath.Join(projectRoot, "scripts")
+	}
+
+	scripts := []string{
+		"import_phase2_data.go",
+		"import_zhipu_data.go",
+		"import_bytedance_data.go",
+	}
+
+	for _, relativePath := range scripts {
+		contentBytes, err := os.ReadFile(filepath.Join(scriptDir, relativePath))
+		if err != nil {
+			t.Fatalf("read %s: %v", relativePath, err)
+		}
+		content := string(contentBytes)
+
+		if !strings.Contains(content, "INSERT INTO models") {
+			t.Fatalf("%s missing models insert statement", relativePath)
+		}
+		if !strings.Contains(content, "source_url") {
+			t.Fatalf("%s missing source_url in models write path", relativePath)
+		}
+		if !strings.Contains(content, "release_date") {
+			t.Fatalf("%s missing release_date in models write path", relativePath)
+		}
+	}
+}