feat: edit ops and the reads their forms need, for socket protocol 2

The edit routes become ops 26-44 (addRoom ... groupSortOrder): ProtoEdits
turns an op's payload into the route's request, full names and real
booleans, and loop() applies it with applyModelEdit() as the route
does. The reply goes to the client that sent it, with an add's new id,
or the route's reason and a shade's validation code; the HTTP routes
keep sending requestResult.

getNextRoom, getNextShade, getNextGroup and groupOptions (45-48) are
answered by loop() from the shade model, through a new LoopQueue item.

Messages that arrive in pieces, a frame over one TCP segment or several
frames, are put back together by ProtoAssembly: one at a time across
clients, up to 4 KB, in a buffer held only while one is on its way.
A message in pieces is now told from its first frame's opcode, which
also stops a fragmented message's last frame drawing a second reply.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/Somfy.h

@@ -239,6 +239,9 @@ class SomfyShadeController {
     uint8_t getNextRoomId();
     uint8_t getNextShadeId();
     uint8_t getNextGroupId();
+    // The remote address a new shade or group with that id is offered: one no
+    // shade or group uses.
+    uint32_t getNextRemoteAddress(uint8_t id);
     int8_t getMaxRoomOrder();
     int8_t getMaxShadeOrder();
     int8_t getMaxGroupOrder();