Show a newly created bot in the rail at once

The rail was built from page props and only knew bots it already had, so a
bot the coordinator created did not appear until a reload.

create_bot and add_bot_to_workspace now push server:bot-created
(BotCreatedData) to everyone who sees the bot: its rail row, the
workspaces it is in, and whether it belongs in that user's own chat list.
useLiveBots inserts it, after the pinned coordinator outside a workspace
and only when the open workspace is one it joined. liveRelay pushes created
bots too, so a bot added by another process still shows.

src/harness/tools/bot/add-bot-to-workspace-tool.ts

@@ -1,6 +1,7 @@
 import BunSQLite from "@moduletrace/bun-sqlite";
 import { z } from "zod";
 import type { BUN_SQLITE_COBBLE_BOTS, BUN_SQLITE_COBBLE_WORKSPACES } from "@/db/types/db";
+import pushBotCreated from "@/src/bots-queue/push-bot-created";
 import addBotToWorkspace from "@/src/functions/backend/db/workspaces/add-bot-to-workspace";
 import type { HarnessTool } from "../../types";
 
@@ -74,6 +75,8 @@ export default function addBotToWorkspaceTool({
                 bot_id: worker.id,
             });
 
+            await pushBotCreated({ bot: worker });
+
             return `${worker.name} joined ${workspace.name}.`;
         },
     };