feat: add dms, hieracthical arguments, permission and rank system

migrations/20250914092514_rank.down.sql

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+-- Add down migration script here
+ALTER TABLE users
+    DROP COLUMN rank,
+    DROP COLUMN "extra_permissions";

migrations/20250914092514_rank.up.sql

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+ALTER TABLE users
+    ADD COLUMN rank TEXT NOT NULL DEFAULT 'user',
+    ADD COLUMN "extra_permissions" JSON NOT NULL DEFAULT '[]';