Add the harness, envs, per-bot models and chat attachments

- Harness: providers, model catalog synced hourly, automatic free picks,
  cooldowns, tool loop with context trimming, MCP computer tools
- Bots queue runs replies and tasks through the harness; jobs wait
  (attempt refunded) while every model is resting
- Envs: Settings > Environment, scoped general/workspace/computer,
  written to computers and redacted from tool output
- Models: Settings > Models, per-harness provider select defaulting to
  OpenRouter, and a models modal on each bot's chat (the coordinator's
  edits the defaults)
- Chat: thinking row while a reply runs, file attachments (upload,
  paste, drop) that replies read as images, audio and document text
- Fix media uploads failing after a user's first file, and private
  files being served from the public media path

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

src/pages/api/admin/bots/send-message.ts

@@ -1,6 +1,10 @@
 import userAuth from "@/src/functions/backend/auth/user-auth";
 import grabUserBot from "@/src/functions/backend/db/bots/grab-user-bot";
 import insertUserMessage from "@/src/functions/backend/db/bots/insert-user-message";
+import grabAttachableMedia from "@/src/functions/backend/db/bots/grab-attachable-media";
+import enqueueBotReply from "@/src/functions/backend/db/bots-queue/enqueue-bot-reply";
+import pushBotNotice from "@/src/bots-queue/push-bot-notice";
+import wakeBotsQueue from "@/src/bots-queue/wake-bots-queue";
 import { SendBotMessageRequestSchema } from "@/src/schemas/bot-schema";
 import parseWithSchema from "@/src/utils/parse-with-schema";
 import isReadOnlyUser from "@/src/utils/rbac/is-read-only-user";
@@ -12,7 +16,10 @@ import type {
 } from "@moduletrace/bunext/types";
 
 /**
- * Posts a message from the session user to one of their own bots.
+ * Posts a message from the session user to one of their own bots and
+ * queues the bot's reply, which arrives over the WebSocket. The message
+ * also goes to the user's other open tabs. Files are uploaded first
+ * (`upload-attachment`) and sent as `media_ids`.
  */
 export const handler: BunextAPIRouteHandler<APIResponseObject> = async ({
     req,
@@ -37,7 +44,7 @@ export const handler: BunextAPIRouteHandler<APIResponseObject> = async ({
             throw new AppError(`This user can only read records.`);
         }
 
-        const { bot_id, text } = parseWithSchema({
+        const { bot_id, text, media_ids } = parseWithSchema({
             schema: SendBotMessageRequestSchema,
             data: body,
         });
@@ -48,7 +55,18 @@ export const handler: BunextAPIRouteHandler<APIResponseObject> = async ({
             throw new AppError(`Bot not found`);
         }
 
-        const message = await insertUserMessage({ bot_id: bot.id, text });
+        const media = await grabAttachableMedia({ user_id: Number(user.id), media_ids });
+        const message = await insertUserMessage({ bot_id: bot.id, text, media });
+
+        await enqueueBotReply({
+            user_id: user.id,
+            bot_id: bot.id,
+            message_id: message.id || 0,
+        });
+
+        wakeBotsQueue();
+
+        await pushBotNotice({ bot_id: bot.id, message });
 
         return {
             success: true,