feat(Director): add autoAdjustIncome feature and enhance director data handling

- Introduced a new boolean field `autoAdjustIncome` in the Director model to manage income adjustments automatically.
- Updated the FalukantService to include `autoAdjustIncome` in director data responses and settings management.
- Enhanced the DirectorInfo component to allow users to toggle the `autoAdjustIncome` setting.
- Updated internationalization files to include translations for the new feature across multiple languages.

backend/sql/add_director_auto_adjust_income.sql

@@ -0,0 +1,15 @@
+-- Adds opt-in flag for automatic director salary adjustment (daemon-controlled)
+-- Default is OFF for all existing and future directors.
+
+ALTER TABLE falukant_data.director
+  ADD COLUMN IF NOT EXISTS auto_adjust_income boolean;
+
+UPDATE falukant_data.director
+SET auto_adjust_income = false
+WHERE auto_adjust_income IS NULL;
+
+ALTER TABLE falukant_data.director
+  ALTER COLUMN auto_adjust_income SET DEFAULT false;
+
+ALTER TABLE falukant_data.director
+  ALTER COLUMN auto_adjust_income SET NOT NULL;