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.

frontend/src/i18n/locales/ceb/falukant.json

@@ -158,6 +158,7 @@
                 },
                 "factors": "Karon nga mga bili",
                 "requirements": "Mga kinahanglanon sa sunod nga level",
+                "productionsSince": "Mga produksyon sugod sa {date} ra ang ihap (sukad sa katapusang pag-asenso, bangkaruta, o panununod).",
                 "factor": {
                     "avgKnowledge": "Average kahibalo",
                     "completedProductions": "Nahuman produksyons",

frontend/src/i18n/locales/de/falukant.json

@@ -178,6 +178,7 @@
                 },
                 "factors": "Aktuelle Werte",
                 "requirements": "Bedingungen für die nächste Stufe",
+                "productionsSince": "Nur Produktionen ab {date} zählen (seit letztem Aufstieg, Bankrott oder Erbfolge).",
                 "factor": {
                     "avgKnowledge": "Durchschnittliches Wissen",
                     "completedProductions": "Abgeschlossene Produktionen",

frontend/src/i18n/locales/en/falukant.json

@@ -159,6 +159,7 @@
                 },
                 "factors": "Current values",
                 "requirements": "Requirements for the next level",
+                "productionsSince": "Only productions on or after {date} count (since last promotion, bankruptcy, or succession).",
                 "factor": {
                     "avgKnowledge": "Average knowledge",
                     "completedProductions": "Completed productions",

frontend/src/i18n/locales/es/falukant.json

@@ -177,6 +177,7 @@
                 },
                 "factors": "Valores actuales",
                 "requirements": "Condiciones para el siguiente nivel",
+                "productionsSince": "Solo cuentan producciones desde el {date} (desde el último ascenso, quiebra o sucesión).",
                 "factor": {
                     "avgKnowledge": "Conocimiento medio",
                     "completedProductions": "Producciones completadas",

frontend/src/i18n/locales/fr/falukant.json

@@ -177,6 +177,7 @@
                 },
                 "factors": "Valeurs actuelles",
                 "requirements": "Conditions pour la prochaine étape",
+                "productionsSince": "Seules les productions à partir du {date} comptent (depuis la dernière promotion, faillite ou succession).",
                 "factor": {
                     "avgKnowledge": "Connaissance moyenne",
                     "completedProductions": "Productions terminées",