Refactor character creation and heir fetching logic in FalukantService and OverviewView

- Updated character creation process to utilize transactions for improved data integrity during heir generation.
- Enhanced heir fetching logic in OverviewView to check for both mainBranchRegion.id and mainBranchRegionId, adding error handling for missing regions.
- Added warnings for empty heir responses from the API to improve debugging and user feedback.

backend/services/falukantService.js

@@ -417,7 +417,7 @@ class FalukantService extends BaseService {
                     model: RegionData,
                     as: 'mainBranchRegion',
                     include: [{ model: RegionType, as: 'regionType' }],
-                    attributes: ['name']
+                    attributes: ['id', 'name']
                 },
                 {
                     model: Branch,
@@ -3003,53 +3003,67 @@ class FalukantService extends BaseService {
             const genders = ['male', 'female'];
             const createdHeirs = [];
 
-            for (let i = 0; i < 5; i++) {
-                // Zufälliges Geschlecht
-                const gender = genders[Math.floor(Math.random() * genders.length)];
-                
-                // Zufälliger Vorname für das Geschlecht
-                const firstName = await this.randomFirstName(gender);
-                let fnObj = await FalukantPredefineFirstname.findOne({ where: { name: firstName, gender } });
-                if (!fnObj) {
-                    fnObj = await FalukantPredefineFirstname.create({ name: firstName, gender });
+            // Erstelle neue Charaktere in einer Transaktion
+            await sequelize.transaction(async (t) => {
+                for (let i = 0; i < 5; i++) {
+                    // Zufälliges Geschlecht
+                    const gender = genders[Math.floor(Math.random() * genders.length)];
+                    
+                    // Zufälliger Vorname für das Geschlecht
+                    const firstName = await this.randomFirstName(gender);
+                    let fnObj = await FalukantPredefineFirstname.findOne({ 
+                        where: { name: firstName, gender },
+                        transaction: t
+                    });
+                    if (!fnObj) {
+                        fnObj = await FalukantPredefineFirstname.create({ 
+                            name: firstName, gender 
+                        }, { transaction: t });
+                    }
+
+                    // Zufälliger Nachname
+                    const lastName = await this.randomLastName();
+                    let lnObj = await FalukantPredefineLastname.findOne({ 
+                        where: { name: lastName },
+                        transaction: t
+                    });
+                    if (!lnObj) {
+                        lnObj = await FalukantPredefineLastname.create({ 
+                            name: lastName 
+                        }, { transaction: t });
+                    }
+
+                    // Zufälliges Alter zwischen 10 und 14 Jahren (in Tagen)
+                    const randomAge = Math.floor(Math.random() * 5) + 10; // 10-14
+                    const birthdate = new Date(now);
+                    birthdate.setDate(birthdate.getDate() - randomAge);
+
+                    // Erstelle den Charakter
+                    const newCharacter = await FalukantCharacter.create({
+                        userId: null, // Wichtig: noch keinem User zugeordnet
+                        regionId: user.mainBranchRegionId,
+                        firstName: fnObj.id,
+                        lastName: lnObj.id,
+                        gender: gender,
+                        birthdate: birthdate,
+                        titleOfNobility: noncivilTitle.id,
+                        health: 100,
+                        moodId: 1
+                    }, { transaction: t });
+
+                    // Lade die Namen für die Rückgabe
+                    const heirWithNames = await FalukantCharacter.findOne({
+                        where: { id: newCharacter.id },
+                        include: [
+                            { model: FalukantPredefineFirstname, as: 'definedFirstName', attributes: ['name'] },
+                            { model: FalukantPredefineLastname, as: 'definedLastName', attributes: ['name'] }
+                        ],
+                        transaction: t
+                    });
+
+                    createdHeirs.push(heirWithNames);
                 }
-
-                // Zufälliger Nachname
-                const lastName = await this.randomLastName();
-                let lnObj = await FalukantPredefineLastname.findOne({ where: { name: lastName } });
-                if (!lnObj) {
-                    lnObj = await FalukantPredefineLastname.create({ name: lastName });
-                }
-
-                // Zufälliges Alter zwischen 10 und 14 Jahren (in Tagen)
-                const randomAge = Math.floor(Math.random() * 5) + 10; // 10-14
-                const birthdate = new Date(now);
-                birthdate.setDate(birthdate.getDate() - randomAge);
-
-                // Erstelle den Charakter
-                const newCharacter = await FalukantCharacter.create({
-                    userId: null, // Wichtig: noch keinem User zugeordnet
-                    regionId: user.mainBranchRegionId,
-                    firstName: fnObj.id,
-                    lastName: lnObj.id,
-                    gender: gender,
-                    birthdate: birthdate,
-                    titleOfNobility: noncivilTitle.id,
-                    health: 100,
-                    moodId: 1
-                });
-
-                // Lade die Namen für die Rückgabe
-                const heirWithNames = await FalukantCharacter.findOne({
-                    where: { id: newCharacter.id },
-                    include: [
-                        { model: FalukantPredefineFirstname, as: 'definedFirstName', attributes: ['name'] },
-                        { model: FalukantPredefineLastname, as: 'definedLastName', attributes: ['name'] }
-                    ]
-                });
-
-                createdHeirs.push(heirWithNames);
-            }
+            });
 
             potentialHeirs = createdHeirs;
         }