Make routines act on their own and check every bot action

Scheduled runs are pre-approved: they carry out their brief instead of
drafting for confirmation. A run that can't do its brief calls
report_run_failed and is retried 5 and 10 minutes later; only then does
the user get one "failed after N tries" message, and the routine keeps
why in last_error.

Every reply and task now gets ActionCheckNote: look for an existing
record before creating one, and verify an action took effect before
saying it's done. Memory and instructions saves are read back, and
create_bot, create_schedule, start_task and delegate_task refuse
duplicates.

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

src/functions/backend/db/bots-queue/grab-open-bot-task.ts

@@ -0,0 +1,24 @@
+import BunSQLite from "@moduletrace/bun-sqlite";
+
+type Params = {
+    bot_id: number | string;
+    session_id: number | string;
+    title: string;
+};
+
+/**
+ * The bot's task in this session with this title that's still queued or
+ * working, if any, so the same work isn't started twice.
+ */
+export default async function grabOpenBotTask({ bot_id, session_id, title }: Params) {
+    const res = await BunSQLite.sql<{ id: number; status: string }>({
+        sql: `SELECT id, status FROM bots_queue
+            WHERE bot_id = ? AND session_id = ? AND kind = 'task'
+                AND status IN ('pending', 'processing')
+                AND lower(trim(title)) = lower(trim(?))
+            ORDER BY id DESC LIMIT 1`,
+        values: [bot_id, session_id, title],
+    });
+
+    return res.payload?.[0] || null;
+}