Make bot types an extension of the bot's kind

Coordinator and worker come from bots.kind; bot_types now only holds
workspace_admin (was admin), each row naming its workspace, with no scope
field. Rows from v0.2.8 and earlier are fixed at boot by migrateBotTypes.

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

src/scripts/backfill-bot-types.ts

@@ -1,20 +0,0 @@
-import BunSQLite from "@moduletrace/bun-sqlite";
-import ensureCoordinatorType from "@/src/functions/backend/db/bot-types/ensure-coordinator-type";
-
-/**
- * Safe to run again: gives the coordinator (`kind = 'coordinator'`) its
- * install-wide `coordinator` bot type. The super admin's `/admin/bots` does
- * the same through `ensureCoordinatorBot`; this is for a headless install.
- *
- * `bun src/scripts/backfill-bot-types.ts`
- */
-async function backfillBotTypes() {
-    const res = await BunSQLite.sql<{ id: number }>({ sql: `SELECT id FROM bots WHERE kind = 'coordinator'` });
-
-    for (const row of res.payload || []) await ensureCoordinatorType({ bot_id: row.id });
-
-    console.log(`Checked ${res.payload?.length || 0} coordinator bot types.`);
-}
-
-await backfillBotTypes();
-process.exit(0);