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]/(sections)/conversation.tsx

@@ -5,12 +5,16 @@ import { AppContext } from "@/src/pages/__root";
 import fetchApi from "@moduletrace/twui/utils/fetch/fetchApi";
 import useLiveBots from "@/src/hooks/use-live-bots";
 import useServerEvent from "@/src/hooks/use-server-event";
+import { BotComputersContext } from "../(data)/bot-computers-context";
+import useBotComputers from "../(hooks)/use-bot-computers";
 import ConversationHeader from "../(partials)/conversation-header";
 import MessageThread from "../(partials)/message-thread";
 import Composer from "../(partials)/composer";
 
 /**
  * The 900px conversation column: header, bottom-anchored thread, composer.
+ * The bot's computers are shared with the header's select and the computer
+ * buttons in the thread, so a switch from either shows in both.
  */
 export default function Conversation() {
     const { pageProps } = useContext(AppContext);
@@ -22,6 +26,10 @@ export default function Conversation() {
 
     const bots = useLiveBots({ bots: pageProps?.bots || [], open_bot_id: bot?.id || undefined });
     const live_bot = bots.find((b) => b.id == bot?.id) || bot;
+    const bot_computers = useBotComputers({
+        bot_id: bot?.id || 0,
+        computers: pageProps?.bot_computers || [],
+    });
 
     useServerEvent({
         event: "server:bot-message",
@@ -44,21 +52,23 @@ export default function Conversation() {
     if (!bot?.id || !live_bot) return null;
 
     return (
-        <Stack className="grow min-w-0 h-full gap-0! items-stretch">
-            <ConversationHeader
-                bot={live_bot}
-                bots={bots}
-                harnesses={pageProps?.bot_harness_overview?.harnesses}
-            />
-            <MessageThread bot={live_bot} messages={messages} />
-            <Composer
-                bot={bot}
-                onSent={({ message }) =>
-                    setMessages((prev) =>
-                        prev.some((m) => m.id == message.id) ? prev : [...prev, message],
-                    )
-                }
-            />
-        </Stack>
+        <BotComputersContext.Provider value={bot_computers}>
+            <Stack className="grow min-w-0 h-full gap-0! items-stretch">
+                <ConversationHeader
+                    bot={live_bot}
+                    bots={bots}
+                    harnesses={pageProps?.bot_harness_overview?.harnesses}
+                />
+                <MessageThread bot={live_bot} messages={messages} />
+                <Composer
+                    bot={bot}
+                    onSent={({ message }) =>
+                        setMessages((prev) =>
+                            prev.some((m) => m.id == message.id) ? prev : [...prev, message],
+                        )
+                    }
+                />
+            </Stack>
+        </BotComputersContext.Provider>
     );
 }