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/routing/hello_test.cpp

@@ -0,0 +1,16 @@
+// Route: GET /routing/hello/{name}
+#include "support/Assert.hpp"
+
+using namespace molo::example::test;
+
+int main() {
+  Fixture f;
+  auto res = f.client->get("/routing/hello/ada");
+  check(res.status == 200, "status 200");
+  check(contains(res.body, "\"hello\":\"ada\""), "path param bound");
+  auto encoded = f.client->get("/routing/hello/a%20b");
+  check(contains(encoded.body, "\"hello\":\"a b\""), "param url-decoded");
+  auto missing = f.client->get("/routing/hello");
+  check(missing.status == 404, "missing segment is 404");
+  return finish("routing/hello");
+}

tests/example/routing/routers_test.cpp

@@ -0,0 +1,14 @@
+// Route: /routing/routers/nested/deep  (nested router include)
+#include "support/Assert.hpp"
+
+using namespace molo::example::test;
+
+int main() {
+  Fixture f;
+  auto res = f.client->get("/routing/routers/nested/deep");
+  check(res.status == 200, "status 200");
+  check(contains(res.body, "\"nested\":true"), "nested router reached");
+  auto shallow = f.client->get("/routing/routers");
+  check(shallow.status == 404, "prefix alone is 404");
+  return finish("routing/routers");
+}

tests/example/routing/views_test.cpp

@@ -0,0 +1,21 @@
+// Route: /routing/views/greet  (class-based view, GET plus POST)
+#include "support/Assert.hpp"
+
+using namespace molo::example::test;
+
+int main() {
+  Fixture f;
+  auto get = f.client->get("/routing/views/greet?name=grace");
+  check(get.status == 200, "GET status 200");
+  check(contains(get.body, "GreetView"), "view dispatched GET");
+  check(contains(get.body, "grace"), "query value used");
+  auto post = f.client->post("/routing/views/greet", "name=ada",
+                             "application/x-www-form-urlencoded");
+  check(post.status == 200, "POST status 200");
+  check(contains(post.body, "\"method\":\"POST\""), "view dispatched POST");
+  auto put = f.client->request(molo::example::fw::Method::Put,
+                               "/routing/views/greet");
+  check(put.status == 404 || put.status == 405,
+        "unregistered method rejected");
+  return finish("routing/views");
+}