Add computer switching, crew reporting, job steps and markdown chat

- Bots have a current computer (bots.computer_id), switched from the chat
  header beside the model button or by clicking a computer the bot names
  ([computer:ID]); tasks run on it by default
- search_computers runs one read-only command on all of a bot's computers;
  chat replies know their computers (compose-computers-note)
- The coordinator can use every computer and grants or revokes crew access
  with assign_computer
- Delegated jobs record requested_by_bot_id; the worker's result or failure
  is reported back in the coordinator's conversation
- bots_queue_updates records each model turn of a job, pushed live and shown
  in the working-on panel
- Live relay: every process pushes new messages, job steps and bot changes
  from the database to its own sockets, so work done elsewhere shows live
- Bot messages render as markdown (react-markdown + remark-gfm, no raw HTML)
  with twui components; rail previews are plain text
- Fix header button overflow in the model and computer selects
- Bump @moduletrace/twui to 0.1.2

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/pages/admin/bots/[bot_id]/index.server.ts

@@ -3,6 +3,7 @@ import grabBots from "@/src/functions/backend/db/bots/grab-bots";
 import grabBotMessages from "@/src/functions/backend/db/bots/grab-bot-messages";
 import grabActiveBotTask from "@/src/functions/backend/db/bots/grab-active-bot-task";
 import markBotRead from "@/src/functions/backend/db/bots/mark-bot-read";
+import grabBotComputers from "@/src/functions/backend/db/computers/grab-bot-computers";
 import grabBotHarnessOverview from "@/src/functions/backend/db/harness/grab-bot-harness-overview";
 import grabHarnessOverview from "@/src/functions/backend/db/harness/grab-harness-overview";
 import type { PagePropsType, PageQueryObject } from "@/src/types";
@@ -40,13 +41,14 @@ export const server: BunextPageServerFn<PagePropsType> = async (params) => {
      * The header's models modal: a worker's own settings, or for the
      * coordinator the defaults it runs on (without the providers).
      */
-    const [bot_messages, bot_task, bot_harness_overview] = await Promise.all([
+    const [bot_messages, bot_task, bot_harness_overview, bot_computers] = await Promise.all([
         grabBotMessages({ bot_id: bot.id }),
         grabActiveBotTask({ bot_id: bot.id }),
         (bot.kind == "coordinator"
             ? grabHarnessOverview().then(({ harnesses }) => ({ harnesses }))
             : grabBotHarnessOverview({ bot_id: bot.id })
         ).catch(() => null),
+        grabBotComputers({ bot_id: bot.id, user_id: user.id }),
     ]);
 
     return {
@@ -56,6 +58,7 @@ export const server: BunextPageServerFn<PagePropsType> = async (params) => {
             bot_messages,
             bot_task,
             bot_harness_overview,
+            bot_computers,
         },
     };
 };