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>

include/dpf/keyword2.hpp

@@ -1686,7 +1686,10 @@ constexpr u256 unpack_rank(Integral v)
 }  // namespace detail
 
 /// @brief Ranked keyword whose language is the pattern `Pattern`.
+/// @note A domain. It stores a `modint` rank. It is not a leaf type.
 /// @tparam Pattern null-terminated pattern with static storage.
+/// @see dpf::keyword
+/// @see dpf::modint
 ///         `pad('0')[0-9]{0,4}` is a decimal of at most 4 digits.
 ///         `[0-9a-f]{8}` is exactly 8 significant hex digits.
 template <const char * Pattern>