feat(family): enhance family view and character pregnancy handling

- Updated the FalukantCharacter model to include a default scope that excludes pregnancy-related fields for compatibility with older databases.
- Implemented a new method in FalukantService to conditionally retrieve pregnancy information based on database schema.
- Enhanced the FamilyView component to display a summary navigation for family relationships, including partners, children, and lovers.
- Updated internationalization files to include new translations for family-related terms and summaries.

backend/services/falukantService.js

@@ -3320,11 +3320,31 @@ class FalukantService extends BaseService {
         return { result: 'ok' };
     }
 
+    /** Liest Schwangerschaft nur wenn DB-Spalten existieren (nach Migration). */
+    async _getCharacterPregnancyOptional(characterId) {
+        try {
+            const rows = await sequelize.query(
+                `SELECT pregnancy_due_at, pregnancy_father_character_id
+                 FROM falukant_data."character" WHERE id = :id`,
+                { replacements: { id: characterId }, type: Sequelize.QueryTypes.SELECT }
+            );
+            const row = rows[0];
+            if (!row?.pregnancy_due_at) return null;
+            return {
+                dueAt: row.pregnancy_due_at,
+                fatherCharacterId: row.pregnancy_father_character_id,
+            };
+        } catch {
+            return null;
+        }
+    }
+
     async getFamily(hashedUserId) {
         const user = await this.getFalukantUserByHashedId(hashedUserId);
         if (!user) throw new Error('User not found');
         const character = await FalukantCharacter.findOne({ where: { userId: user.id } });
         if (!character) throw new Error('Character not found for this user');
+        const pregnancy = await this._getCharacterPregnancyOptional(character.id);
         // Load relationships without includes to avoid EagerLoadingError
         const relRows = await Relationship.findAll({
             where: { character1Id: character.id },
@@ -3519,12 +3539,7 @@ class FalukantService extends BaseService {
             children: children.map(({ _createdAt, ...rest }) => rest),
             possiblePartners: [],
             possibleLovers: [],
-            pregnancy: character.pregnancyDueAt
-                ? {
-                    dueAt: character.pregnancyDueAt,
-                    fatherCharacterId: character.pregnancyFatherCharacterId,
-                }
-                : null,
+            pregnancy,
         };
         const ownAge = calcAge(character.birthdate);
         if (ownAge >= 12) {