feat(user): add certificate production tracking and update localization

- Introduced a new field `certificateProductionsCountSince` in the `FalukantUser` model to track the date from which production logs are counted for certificate requirements.
- Updated the `FalukantService` to utilize the new field for calculating completed productions since the specified date.
- Enhanced the UI to display the count of productions since the last promotion, with corresponding translations added for multiple languages including Cebuano, German, English, Spanish, and French.
- Implemented a method to delete old production logs, ensuring efficient data management while maintaining necessary historical records for certificate calculations.

src/usercharacterworker.h

@@ -25,6 +25,7 @@ private:
     int calculateHealthChange(int age);
     void handleCharacterDeath(int characterId);
     void recalculateKnowledge();
+    void deleteOldProductionLogs();
     void processPregnancies();
     void handleCredits();
     void setHeir(int characterId);
@@ -61,7 +62,13 @@ private:
     static constexpr const char *QUERY_UPDATE_GET_ITEMS_TO_UPDATE = R"(
         SELECT id, product_id, producer_id, quantity
         FROM falukant_log.production p
-        WHERE p.production_timestamp::date < current_date
+        WHERE (COALESCE(p.production_timestamp, p.production_date::timestamp))::date < CURRENT_DATE
+    )";
+
+    /** Log-Retention: ältere Zeilen entfernen (Daemon/UI-Zertifikatszählung braucht Historie nur begrenzt). */
+    static constexpr const char *QUERY_DELETE_OLD_PRODUCTIONS = R"(
+        DELETE FROM falukant_log.production
+        WHERE COALESCE(production_timestamp, production_date::timestamp) < NOW() - INTERVAL '30 days'
     )";
 
     static constexpr const char *QUERY_UPDATE_GET_CHARACTER_IDS = R"(