Document the new DPF surfaces in one command set, and test the field, half-tree, and multipoint edges.

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

include/dpf/emplace.hpp

@@ -34,6 +34,7 @@ namespace utils
 
 /// @brief Emplaces a `dpf::dpf_key` object into the specified, pre-allocated memory.
 /// @tparam DpfKey The concrete specialization of `dpf::dpf_key` to construct.
+/// @tparam T value type
 /// @param storage Reference to the container where the `dpf::dpf_key` object will be emplaced.
 /// @param root The root node used by the `dpf::dpf_key`.
 /// @param correction_words Correction words array for the `dpf::dpf_key`.
@@ -59,6 +60,14 @@ struct dpf_emplacer
     using input_type = typename DpfKey::input_type;
 
     /// @brief Generic version is intentionally left undefined.
+    /// @param storage the `storage`
+    /// @param root the root seed
+    /// @param correction_words the `correction_words`
+    /// @param correction_advice the advice bit on the correction word
+    /// @param leaves the leaf values
+    /// @param beavers the `beavers`
+    /// @param offset_share the `offset_share`
+    /// @return Generic version is intentionally left undefined
     static auto emplace(T & storage,
         const interior_node & root,
         const correction_words_array & correction_words,
@@ -69,6 +78,7 @@ struct dpf_emplacer
 };
 
 /// @brief Specialization for `std::unique_ptr`.
+/// @tparam DpfKey DPF key type
 template <typename DpfKey>
 struct dpf_emplacer<DpfKey, std::unique_ptr<DpfKey>>
 {