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/Net.cpp

@@ -0,0 +1,82 @@
+#include "Net.hpp"
+
+#include "Caps.hpp"
+
+namespace molo::example::fw {
+
+RestClient::RestClient(RestTransport transport)
+    : transport_(std::move(transport)) {}
+
+Response RestClient::get(const std::string& path) {
+  Request req;
+  req.method = Method::Get;
+  req.path = path;
+  return transport_(std::move(req));
+}
+
+Response RestClient::post_json(const std::string& path,
+                               const std::string& json) {
+  Request req;
+  req.method = Method::Post;
+  req.path = path;
+  req.body = json;
+  req.headers.set("Content-Type", "application/json");
+  return transport_(std::move(req));
+}
+
+void OpenApi::add(const std::string& path, const std::string& method,
+                  const std::string& summary) {
+  if (routes_.size() >= caps::kMaxOpenApiRoutes) return;
+  routes_.push_back({path, method, summary});
+}
+
+std::string OpenApi::to_json() const {
+  std::string out =
+      "{\"openapi\":\"3.0.0\",\"info\":{\"title\":\"living-example\","
+      "\"version\":\"0.1.0\"},\"paths\":{";
+  bool first = true;
+  for (const auto& r : routes_) {
+    if (!first) out += ",";
+    first = false;
+    out += "\"" + json_escape(r.path) + "\":{\"" + json_escape(r.method) +
+           "\":{\"summary\":\"" + json_escape(r.summary) + "\"}}";
+  }
+  return out + "}}";
+}
+
+std::size_t OpenApi::size() const { return routes_.size(); }
+
+std::string redact_secrets(const std::string& text) {
+  std::string out = text;
+  const char* keys[] = {"DEVPLACE_API_KEY", "API_KEY", "SECRET", "TOKEN",
+                        "PASSWORD"};
+  for (const char* k : keys) {
+    std::string key(k);
+    std::size_t pos = 0;
+    while ((pos = out.find(key, pos)) != std::string::npos) {
+      std::size_t eol = out.find('\n', pos);
+      if (eol == std::string::npos) eol = out.size();
+      std::size_t eq = out.find('=', pos);
+      if (eq != std::string::npos && eq < eol) {
+        out.replace(eq + 1, eol - eq - 1, "[REDACTED]");
+        pos = eq + 1;
+      } else {
+        pos += key.size();
+      }
+    }
+  }
+  return out;
+}
+
+AiSample ai_harness_sample(const std::string& prompt) {
+  AiSample s;
+  s.base_url = "https://devplace.net/openai/v1";
+  s.model = "molodetz";
+  s.redacted_prompt = redact_secrets(prompt);
+  s.stream_chunks = {"data: {\"delta\":\"plan: add route\"}\n\n",
+                     "data: {\"delta\":\"apply: 1 file\"}\n\n",
+                     "data: [DONE]\n\n"};
+  return s;
+}
+
+}  // namespace molo::example::fw