feat: rebuild CSP practice workflow, UX and automation

backend/tests/kb_service_test.cc

@@ -0,0 +1,18 @@
+#include <catch2/catch_test_macros.hpp>
+
+#include "csp/db/sqlite_db.h"
+#include "csp/services/kb_service.h"
+
+TEST_CASE("kb service list/detail") {
+  auto db = csp::db::SqliteDb::OpenMemory();
+  csp::db::ApplyMigrations(db);
+  csp::db::SeedDemoData(db);
+
+  csp::services::KbService svc(db);
+  const auto rows = svc.ListArticles();
+  REQUIRE(rows.size() >= 2);
+
+  const auto detail = svc.GetBySlug(rows.front().slug);
+  REQUIRE(detail.has_value());
+  REQUIRE(detail->article.slug == rows.front().slug);
+}