feat(political-office): enhance political office benefits and salary computation

- Added a new hierarchyLevel field to PoliticalOfficeType for better categorization of political roles.
- Updated computePoliticalDailySalaryPayout function to incorporate hierarchy level in salary calculations, allowing for more dynamic salary adjustments based on office rank.
- Modified SQL scripts to reflect changes in political office benefits, ensuring compatibility with the new salary structure.
- Enhanced localization files to support updated benefit descriptions and salary formats across multiple languages.
- Improved UI components to display the new salary calculations and benefits accurately in the PoliticsView.

backend/sql/falukant_political_office_benefits.sql

@@ -21,8 +21,11 @@
 --   psql "$DATABASE_URL" -v ON_ERROR_STOP=1 -f backend/sql/falukant_political_office_benefits.sql
 --
 -- JSON value daily_salary:
---   • dailyAmount: fester Tagesbetrag (überschreibt base/perRank)
---   • base + perRank: Auszahlung = base + (Amtsrang * perRank)
+--   • dailyAmount: fester Tagesbetrag (überschreibt alles)
+--   • rank: optional feste Stufe in JSON (überschreibt DB-Stufe)
+--   • Standard: salaryStart × salaryGrowth^(Stufe−1); Stufe = hierarchy_level (s. Migration political-office-hierarchy-level)
+--   • Optional: salaryStart, salaryGrowth pro Amt; ENV POLITICAL_DAILY_SALARY_START / POLITICAL_DAILY_SALARY_GROWTH
+--   • Legacy linear: salaryFormula = 'linear' und base, perRank
 -- JSON value tax_exemption:
 --   • regions: Text-Array (z. B. "city") oder "*" für alle Ebenen
 -- =============================================================================
@@ -145,9 +148,9 @@ WHERE ot.name = 'chancellor'
     WHERE x.office_type_id = ot.id AND x.benefit_type_id = bt.id
   );
 
--- Tageslohn: base + Amtsrang * perRank (Rang in App: POLITICAL_OFFICE_RANKS)
+-- Tageslohn: Betrag aus App-Formel (exponentiell nach hierarchy_level); value leer = Defaults
 INSERT INTO falukant_predefine.political_office_benefit (office_type_id, benefit_type_id, value)
-SELECT ot.id, bt.id, '{"base":4,"perRank":11}'::jsonb
+SELECT ot.id, bt.id, '{}'::jsonb
 FROM falukant_type.political_office_type ot
 JOIN falukant_type.political_office_benefit_type bt ON bt.tr = 'daily_salary'
 WHERE ot.name IN (