Decouple core Yaak logic from Tauri (#354)

crates/yaak-models/migrations/20250929132954_dismiss-license-badge.sql

@@ -0,0 +1,10 @@
+ALTER TABLE settings
+    ADD COLUMN hide_license_badge BOOLEAN DEFAULT FALSE;
+
+-- 2. Backfill based on old JSON
+UPDATE settings
+SET hide_license_badge = 1
+WHERE EXISTS ( SELECT 1
+               FROM key_values kv
+               WHERE kv.key = 'license_confirmation'
+                 AND JSON_EXTRACT(kv.value, '$.confirmedPersonalUse') = TRUE );