Checkpoint the party/runtime stack before share-program and malicious-mode work.

Ship the TLS mesh, composer, Beaver/Yao/leaf MPC, prep/online paths, apps, and docs so the tree is pushable before elevating share_expr, security_mode, and prep resume.

Co-authored-by: Cursor <cursoragent@cursor.com>

examples/mwe/interval.cpp

@@ -0,0 +1,28 @@
+#include <cstdint>
+#include <iostream>
+
+#include "dpf.hpp"
+
+// Complete program. The secret is a mask r. The public interval is [p, q]
+// on the unmasked input x - r. ic returns `beta` inside that interval.
+//
+//   c++ -std=c++17 -march=native -I include -I thirdparty examples/mwe/interval.cpp
+int main()
+{
+    const std::uint8_t r = 10;
+    const std::uint8_t p = 3;
+    const std::uint8_t q = 5;
+    const std::uint64_t beta = 9;
+    auto [k0, k1] = dpf::make_dpf(r, dpf::ic(p, q, beta));
+
+    // x = 14 means x - r = 4, which is inside [3, 5].
+    const auto inside = dpf::reconstruct(
+        dpf::eval_point(dpf::ic, k0, std::uint8_t{14}),
+        dpf::eval_point(dpf::ic, k1, std::uint8_t{14}));
+    const auto outside = dpf::reconstruct(
+        dpf::eval_point(dpf::ic, k0, std::uint8_t{0}),
+        dpf::eval_point(dpf::ic, k1, std::uint8_t{0}));
+
+    std::cout << inside << " " << outside << "\n";
+    return (inside == beta && outside == 0) ? 0 : 1;
+}