Typing into a numbered channel (`/1 hello`, or a line under a "[2. Trade]" header) sent nothing: the channel number went to the wire as the channel's name, so the server found no channel called "2".
Fixes#222.
- `SendChatMessage` reads a CHANNEL target the way 1.12.1 does (`0x49f4d9`-`0x49f4ea`): `SStrToInt` on the text, then the by-number slot getter (`0x49be50`), and the packet carries that slot's name (`0x49f70b`). A number that names no joined slot sends nothing, before the AFK clear and the tutorial acknowledge. There is no by-name leg, so an addon that passes a channel name sends nothing, as in 1.12.1.
- The binding keeps the target as Lua's `tostring` gives it, so 2.7 reads 2 instead of rounding to 3. `LeaveChannelByName` shares the parse and the getter.
- The send drains run before the zone-channel walk, so a `/N` resolves against the roster the script read the same frame.
Test: `a_channel_send_carries_the_numbered_slots_name` runs the real drain over a slot roster. It failed before (the wire target was "2") and passes now; holes, suspended slots, names and missing targets send nothing.
To see it: two characters of one faction in the same zone, both in General. On the first, `/1 hello`: the second now sees it.
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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
