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

@@ -2,6 +2,7 @@ import type {
     BUN_SQLITE_COBBLE_BOT_MESSAGES,
     BUN_SQLITE_COBBLE_BOTS,
 } from "@/db/types/db";
+import grabActiveBotTask from "@/src/functions/backend/db/bots/grab-active-bot-task";
 import pushToBotOwner from "./push-to-bot-owner";
 
 type Params = {
@@ -12,6 +13,7 @@ type Params = {
 
 /**
  * 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.
  */
 export default async function pushBotNotice({ bot_id, message, bot }: Params) {
     if (message) {
@@ -24,7 +26,10 @@ export default async function pushBotNotice({ bot_id, message, bot }: Params) {
     if (bot) {
         await pushToBotOwner({
             bot_id,
-            data: { event: "server:bot-updated", data: bot },
+            data: {
+                event: "server:bot-updated",
+                data: { ...bot, task: await grabActiveBotTask({ bot_id }) },
+            },
         });
     }
 }