feat(#2659): serve hive-bash-mcp over persistent streamable-http, drop stdio bridge

docs/turn-loop/mcp.md

@@ -7,9 +7,12 @@ per-container private netns). Claude connects to its stable URL via
 `--mcp-config` rather than respawning a stdio child each turn, so the
 URL survives the per-turn claude re-spawn (and a host-side hive-c0re
 restart) — there is no per-turn MCP re-registration race for the
-built-in surface. HTTP is the sole transport for it (no stdio fallback);
-extra servers (`hyperhive.extraMcpServers`, e.g. matrix/bash) stay stdio
-bridges. The server name is `hyperhive`, so the tools land in claude as
+built-in surface. HTTP is the sole transport for it (no stdio fallback).
+Extra servers (`hyperhive.extraMcpServers`) pick their own transport per
+entry (`type = "stdio" | "http"`, default `"stdio"`): `matrix` stays a
+stdio bridge, `bash` runs its own persistent streamable-http listener
+(`hive-bash-daemon`) — same reasoning as the built-in surface. The
+server name is `hyperhive`, so the tools land in claude as
 `mcp__hyperhive__<tool>`.
 
 Tool access is gated by tool groups (`HIVE_TOOL_GROUPS`). The default
@@ -81,7 +84,7 @@ at_unix_timestamp?)`, `request_next_turn()`.
 
 - `get_loose_ends(agent?)` — list pending questions (asked/owed),
   scheduled reminders, and active local tasks published by external MCP
-  daemons (e.g. running bash tasks from `hive-bash-mcp`). Each row
+  daemons (e.g. running bash tasks from `hive-bash-daemon`). Each row
   carries an id + kind for `cancel_loose_end`. Omit `agent` to list
   your own threads. Pass `agent: "<name>"` to inspect a direct child
   agent (always accessible per topology enforcement); non-children