gates: AGENTS.md § Gates and mcp-read-server name every intake channel behind the Upload Review Gate, not only submit (#213 close); 10.0.0-beta.12

Files changed:
- AGENTS.md
- CHANGES.md
- VERSION
- docs/reference/configuration.md
- instructions/mcp-read-server.md
- tools/chemenu/commands/doctor.py

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SnAJ7Z3CpVD3PRbN73QtU2

instructions/mcp-read-server.md

@@ -9,8 +9,9 @@ description: Run and keep current the MCP read server that serves this wiki to a
 Chemenu has a second consumer. `search`, `types`, `describe_type`, `lint` and `status` are
 served over MCP to callers that are not this terminal - the CLI and the server are two adapters
 over one core (`chemenu.api.Corpus`), not a CLI with a network interface bolted on. A sixth
-tool, `submit`, is opt-in: a checkout whose `.wikitool-local.json` has an `upload` section also
-offers a quarantined write path for documents pushed from outside - see
+tool, `submit`, is opt-in: a checkout whose `.wikitool-local.json` declares a channel with the
+handler `mcp` in its `intake` section also offers a quarantined write path for documents pushed
+from outside - see
 [instructions/ingest-queue.md](ingest-queue.md) for reviewing what lands there.
 
 This document is about *operating* it: how to start it, what has to be true of the checkout it