feat: implement MoloApp plans 01-15 with integration

Full C++23 framework tree: runtime, observability, security,
data, app, realtime, supervisor, clients, CLI, example plus
enterprise tenancy, audit, operability, governance,
supplychain. Postgres via docker compose for tests.

tests/example/support/Assert.hpp

@@ -0,0 +1,49 @@
+#pragma once
+
+// Shared test support for the living example suite. Not a test itself: every
+// test file owns one main() and uses these helpers for loud assertions.
+
+#include <iostream>
+#include <string>
+
+#include "app/App.hpp"
+#include "fw/TestClient.hpp"
+
+namespace molo::example::test {
+
+inline int g_failures = 0;
+
+inline void check(bool cond, const std::string& what) {
+  if (cond) {
+    std::cout << "  ok: " << what << "\n";
+  } else {
+    ++g_failures;
+    std::cout << "  FAIL: " << what << "\n";
+  }
+}
+
+inline bool contains(const std::string& hay, const std::string& needle) {
+  return hay.find(needle) != std::string::npos;
+}
+
+inline int finish(const std::string& name) {
+  if (g_failures == 0) {
+    std::cout << "PASS: " << name << "\n";
+    return 0;
+  }
+  std::cout << "FAIL: " << name << " (" << g_failures << " failures)\n";
+  return 1;
+}
+
+struct Fixture {
+  molo::example::app::Services services;
+  std::shared_ptr<molo::example::fw::Application> app;
+  std::shared_ptr<molo::example::fw::TestClient> client;
+
+  Fixture() {
+    app = molo::example::app::build_application(services);
+    client = std::make_shared<molo::example::fw::TestClient>(app);
+  }
+};
+
+}  // namespace molo::example::test