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/functions/backend/db/bots/grab-active-bot-task.ts

@@ -4,13 +4,15 @@ import type {
 } from "@/db/types/db";
 import type { BotTaskWithSteps } from "@/src/types";
 import BunSQLite from "@moduletrace/bun-sqlite";
+import grabBotJobUpdates from "../bots-queue/grab-bot-job-updates";
 
 type Params = {
     bot_id: number | string;
 };
 
 /**
- * The bot's most recent active task and its steps, for the working-on panel.
+ * The bot's most recent active task, its steps and what its job has done
+ * so far, for the working-on panel.
  */
 export default async function grabActiveBotTask({
     bot_id,
@@ -31,5 +33,9 @@ export default async function grabActiveBotTask({
         values: [task.id],
     });
 
-    return { ...task, steps: steps_res.payload || [] };
+    return {
+        ...task,
+        steps: steps_res.payload || [],
+        updates: await grabBotJobUpdates({ task_id: task.id }),
+    };
 }