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.

example/fw/Server.hpp

@@ -0,0 +1,44 @@
+#pragma once
+
+// Minimal loopback HTTP/1.1 server for manual verification and the real-HTTP
+// round-trip test. Sequential accept loop, static caps, no TLS, no HTTP/2.
+// Gap: real event loop, timeouts, keep-alive, H2, and compression live in
+// 01-runtime.md; this server exists only to prove the stack end to end.
+
+#include <atomic>
+#include <memory>
+#include <string>
+#include <thread>
+
+#include "App.hpp"
+
+namespace molo::example::fw {
+
+class Server {
+ public:
+  explicit Server(std::shared_ptr<Application> app);
+  ~Server();
+
+  Server(const Server&) = delete;
+  Server& operator=(const Server&) = delete;
+
+  bool start(const std::string& host, int port);
+  void stop();
+  int port() const;
+  bool running() const;
+
+ private:
+  void loop();
+  void handle_one(int fd);
+
+  std::shared_ptr<Application> app_;
+  int listen_fd_ = -1;
+  int port_ = 0;
+  std::atomic<bool> running_{false};
+  std::thread worker_;
+};
+
+std::string http_roundtrip(const std::string& host, int port,
+                           const std::string& raw_request);
+
+}  // namespace molo::example::fw