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/mark-read.ts

@@ -0,0 +1,39 @@
+import userAuth from "@/src/functions/backend/auth/user-auth";
+import markBotRead from "@/src/functions/backend/db/bots/mark-bot-read";
+import { BotIdRequestSchema } from "@/src/schemas/bot-schema";
+import AppError from "@/src/utils/app-error";
+import parseWithSchema from "@/src/utils/parse-with-schema";
+import safeErrorMessage from "@/src/utils/safe-error-message";
+import type {
+    APIResponseObject,
+    BunextAPIRouteHandler,
+} from "@moduletrace/bunext/types";
+
+/**
+ * Clears a bot's unread flag when a message arrives in the conversation
+ * the user has open. Only the session user's own bots.
+ */
+export const handler: BunextAPIRouteHandler<APIResponseObject> = async ({
+    req,
+    body,
+}) => {
+    try {
+        if (req.method != "POST") {
+            throw new AppError(`Method not allowed`);
+        }
+
+        const { user } = await userAuth({ req });
+
+        if (!user?.logged_in_status || !user.id) {
+            return { success: false, msg: `Unauthorized`, logoutUser: true };
+        }
+
+        const { bot_id } = parseWithSchema({ schema: BotIdRequestSchema, data: body });
+
+        await markBotRead({ bot_id, user_id: user.id });
+
+        return { success: true };
+    } catch (error: unknown) {
+        return { success: false, msg: safeErrorMessage({ error }) };
+    }
+};