Add workspaces, computers, bot memory and the bots queue

- Schema: workspaces (+ workspace_bots, workspace_computers), containers,
  computers, bot_computers, bots.memory, workspaces.system_prompt, and
  bots_queue as a bun-sqlite isQueue table
- Main computer (and its container record) ensured with the coordinator on
  signup, seed and /admin/bots; the coordinator's access to it is locked
- Effective computer access: direct grants plus workspace computers
- Full bot prompt: core instructions, workspace prompts, then memory;
  bots can rewrite their memory and system prompt
- Queue helpers on the native BunSQLite.queue API, plus a handler that
  heartbeats, serializes per computer, recovers after restarts, reports
  lost jobs, supports cancelling and pushes outcomes over the WebSocket
- Enable SQLite foreign keys at startup so schema cascades fire
- Prune finished jobs daily

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

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

@@ -0,0 +1,30 @@
+import type {
+    BUN_SQLITE_COBBLE_BOT_MESSAGES,
+    BUN_SQLITE_COBBLE_BOTS,
+} from "@/db/types/db";
+import pushToBotOwner from "./push-to-bot-owner";
+
+type Params = {
+    bot_id: number | string;
+    message?: BUN_SQLITE_COBBLE_BOT_MESSAGES | null;
+    bot?: Pick<BUN_SQLITE_COBBLE_BOTS, "id" | "face" | "status_line"> | null;
+};
+
+/**
+ * Pushes a new bot message and/or face change to the owner's open tabs.
+ */
+export default async function pushBotNotice({ bot_id, message, bot }: Params) {
+    if (message) {
+        await pushToBotOwner({
+            bot_id,
+            data: { event: "server:bot-message", data: message },
+        });
+    }
+
+    if (bot) {
+        await pushToBotOwner({
+            bot_id,
+            data: { event: "server:bot-updated", data: bot },
+        });
+    }
+}