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/events/fire_test.cpp

@@ -0,0 +1,19 @@
+// Route: /events/fire  (typed event bus)
+#include "support/Assert.hpp"
+
+using namespace molo::example::test;
+
+int main() {
+  Fixture f;
+  int seen = 0;
+  f.services.events->on("demo.ping",
+                        [&](const molo::example::fw::Event&) { ++seen; });
+  auto fire = f.client->post(
+      "/events/fire", "{\"type\":\"demo.ping\",\"payload\":\"p1\"}",
+      "application/json");
+  check(fire.status == 200, "fire status 200");
+  check(seen == 1, "side effect: listener ran");
+  auto list = f.client->get("/events/fire");
+  check(contains(list.body, "demo.ping"), "delivery recorded");
+  return finish("events/fire");
+}