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/bots-queue/push-bot-notice.ts

@@ -8,14 +8,20 @@ import pushToBotOwner from "./push-to-bot-owner";
 type Params = {
     bot_id: number | string;
     message?: BUN_SQLITE_COBBLE_BOT_MESSAGES | null;
-    bot?: Pick<BUN_SQLITE_COBBLE_BOTS, "id" | "face" | "status_line"> | null;
+    bot?: Pick<BUN_SQLITE_COBBLE_BOTS, "id" | "face" | "status_line" | "computer_id"> | null;
+    /**
+     * A job's result reported to the bot that handed it over
+     * (`relayJobToRequester`): a message in that bot's conversation.
+     */
+    relay?: { bot_id: number; message: BUN_SQLITE_COBBLE_BOT_MESSAGES } | null;
 };
 
 /**
  * Pushes a new bot message and/or face change to the owner's open tabs.
  * A face change carries the bot's active task, for the working-on panel.
+ * A relayed report goes to the conversation it was posted in.
  */
-export default async function pushBotNotice({ bot_id, message, bot }: Params) {
+export default async function pushBotNotice({ bot_id, message, bot, relay }: Params) {
     if (message) {
         await pushToBotOwner({
             bot_id,
@@ -23,6 +29,13 @@ export default async function pushBotNotice({ bot_id, message, bot }: Params) {
         });
     }
 
+    if (relay) {
+        await pushToBotOwner({
+            bot_id: relay.bot_id,
+            data: { event: "server:bot-message", data: relay.message },
+        });
+    }
+
     if (bot) {
         await pushToBotOwner({
             bot_id,