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/redirect/here_test.cpp

@@ -0,0 +1,14 @@
+// Route: GET /redirect/here  (temporary vs permanent)
+#include "support/Assert.hpp"
+
+using namespace molo::example::test;
+
+int main() {
+  Fixture f;
+  auto temp = f.client->get("/redirect/here");
+  check(temp.status == 302, "default is temporary");
+  check(temp.headers.get("Location") == "/health", "location set");
+  auto perm = f.client->get("/redirect/here?mode=perm");
+  check(perm.status == 301, "perm mode is permanent");
+  return finish("redirect/here");
+}