feat(billing): scope filter, user balance cards, CSV export fix

- Scope dropdown (Meine Kosten / Mandant / Alle) on Overview and Statistics tabs
- All user balance cards shown in Overview when scope is mandate or all
- Balance cards and statistics react to scope selection
- CSV export endpoint fixed: /api/billing/view/users/transactions
- Scope selector hidden on Transactions tab (FormGeneratorTable handles own filters)
- Fixed unused VoiceLanguage import in TeamsbotSettingsView

Co-authored-by: Cursor <cursoragent@cursor.com>

src/pages/billing/BillingDataView.tsx

@@ -266,11 +266,18 @@ function _buildStatisticsSections(viewStats: ViewStatistics): ReportSection[] {
 export const BillingDataView: React.FC = () => {
   const [activeTab, setActiveTab] = useState<TabType>('overview');
   
+  // Scope filter: 'personal' | 'all' | mandateId
+  const [selectedScope, setSelectedScope] = useState<string>('personal');
+  
   // Dashboard state (for Overview tab)
   const { 
     balances, 
     loading: dashboardLoading, 
   } = useBilling();
+
+  // All user balances (for admin overview cards)
+  const [allUserBalances, setAllUserBalances] = useState<any[]>([]);
+  const [allUserBalancesLoading, setAllUserBalancesLoading] = useState(false);
   
   // Statistics state (shared by Overview and Statistics tabs)
   const [viewStats, setViewStats] = useState<ViewStatistics | null>(null);
@@ -282,6 +289,19 @@ export const BillingDataView: React.FC = () => {
   const [transactionsError, setTransactionsError] = useState<string | null>(null);
   const [transactionsPagination, setTransactionsPagination] = useState<any>(null);
 
+  // Load all user balances for admin overview
+  const _loadAllUserBalances = useCallback(async () => {
+    try {
+      setAllUserBalancesLoading(true);
+      const response = await api.get('/api/billing/view/users/balances');
+      setAllUserBalances(Array.isArray(response.data) ? response.data : []);
+    } catch {
+      setAllUserBalances([]);
+    } finally {
+      setAllUserBalancesLoading(false);
+    }
+  }, []);
+
   // Load aggregated statistics from the view/statistics route
   const _loadViewStatistics = useCallback(async (period: string, year: number, month?: number) => {
     try {
@@ -290,6 +310,15 @@ export const BillingDataView: React.FC = () => {
       if (period === 'day' && month) {
         params.month = month;
       }
+      // Apply scope filter
+      if (selectedScope === 'personal') {
+        params.scope = 'personal';
+      } else if (selectedScope !== 'all') {
+        params.scope = 'mandate';
+        params.mandateId = selectedScope;
+      } else {
+        params.scope = 'all';
+      }
       const response = await api.get('/api/billing/view/statistics', { params });
       setViewStats(response.data);
     } catch (err: any) {
@@ -298,7 +327,7 @@ export const BillingDataView: React.FC = () => {
     } finally {
       setStatsLoading(false);
     }
-  }, []);
+  }, [selectedScope]);
 
   // Handle filter changes from FormGeneratorReport (user changes period/year/month)
   const _handleStatsFilterChange = useCallback((filterState: ReportFilterState) => {
@@ -313,7 +342,10 @@ export const BillingDataView: React.FC = () => {
     if (activeTab === 'overview' || activeTab === 'statistics') {
       _loadViewStatistics('month', new Date().getFullYear());
     }
-  }, [activeTab, _loadViewStatistics]);
+    if (activeTab === 'overview') {
+      _loadAllUserBalances();
+    }
+  }, [activeTab, _loadViewStatistics, _loadAllUserBalances, selectedScope]);
 
   // Load transactions with pagination support
   const _loadTransactions = useCallback(async (paginationParams?: any) => {
@@ -399,11 +431,46 @@ export const BillingDataView: React.FC = () => {
     defaultMonth: new Date().getMonth() + 1
   }), []);
 
+  // Build scope options from balances (mandates the user has access to)
+  const scopeOptions = useMemo(() => {
+    const options: Array<{ value: string; label: string }> = [
+      { value: 'personal', label: 'Meine Kosten' },
+    ];
+    // Add mandate options from balances
+    const seen = new Set<string>();
+    for (const b of balances) {
+      if (!seen.has(b.mandateId)) {
+        seen.add(b.mandateId);
+        options.push({ value: b.mandateId, label: `Mandant: ${b.mandateName}` });
+      }
+    }
+    options.push({ value: 'all', label: 'Alle (RBAC)' });
+    return options;
+  }, [balances]);
+
   return (
     <div className={styles.billingDashboard}>
       <header className={styles.pageHeader}>
-        <h1>Billing</h1>
+        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
-        <p className={styles.subtitle}>Guthaben, Statistiken und Transaktionen</p>
+          <div>
+            <h1>Billing</h1>
+            <p className={styles.subtitle}>Guthaben, Statistiken und Transaktionen</p>
+          </div>
+          {activeTab !== 'transactions' && (
+            <div style={{ display: 'flex', alignItems: 'center', gap: '8px' }}>
+              <label style={{ fontSize: '13px', opacity: 0.7 }}>Ansicht:</label>
+              <select
+                className={styles.select || ''}
+                value={selectedScope}
+                onChange={(e) => setSelectedScope(e.target.value)}
+              >
+                {scopeOptions.map(opt => (
+                  <option key={opt.value} value={opt.value}>{opt.label}</option>
+                ))}
+              </select>
+            </div>
+          )}
+        </div>
       </header>
 
       <TabNav activeTab={activeTab} onTabChange={setActiveTab} />
@@ -411,36 +478,73 @@ export const BillingDataView: React.FC = () => {
       {/* ================================================================ */}
       {/* Tab: Übersicht (My Overview) */}
       {/* ================================================================ */}
-      {activeTab === 'overview' && (
+      {activeTab === 'overview' && (() => {
-        <>
+        // Filter balances and user accounts by scope
-          {/* Balance Cards */}
+        const filteredBalances = selectedScope === 'personal' || selectedScope === 'all'
-          <section className={styles.section}>
+          ? balances
-            <h2 className={styles.sectionTitle}>Mein Guthaben</h2>
+          : balances.filter(b => b.mandateId === selectedScope);
-            {dashboardLoading ? (
+        
-              <div className={styles.loadingPlaceholder}>Lade Guthaben...</div>
+        const filteredUserBalances = selectedScope === 'personal'
-            ) : balances.length === 0 ? (
+          ? [] // personal view: only own balance cards, no other users
-              <div className={styles.noData}>Keine Abrechnungskonten vorhanden</div>
+          : selectedScope === 'all'
-            ) : (
+            ? allUserBalances
-              <div className={styles.balanceGrid}>
+            : allUserBalances.filter(ub => ub.mandateId === selectedScope);
-                {balances.map((balance) => (
-                  <BalanceCard key={balance.mandateId} balance={balance} />
-                ))}
-              </div>
-            )}
-          </section>
 
-          {/* Usage Statistics via FormGeneratorReport (no period selector - always full year) */}
+        return (
-          <section className={styles.section}>
+          <>
-            <FormGeneratorReport
+            {/* Balance Cards - own balances */}
-              title="Nutzungsübersicht"
+            <section className={styles.section}>
-              loading={statsLoading}
+              <h2 className={styles.sectionTitle}>Mein Guthaben</h2>
-              sections={overviewSections}
+              {dashboardLoading ? (
-              noDataMessage="Keine Statistiken verfügbar"
+                <div className={styles.loadingPlaceholder}>Lade Guthaben...</div>
-              currencyCode="CHF"
+              ) : filteredBalances.length === 0 ? (
-            />
+                <div className={styles.noData}>Keine Abrechnungskonten vorhanden</div>
-          </section>
+              ) : (
-        </>
+                <div className={styles.balanceGrid}>
-      )}
+                  {filteredBalances.map((balance) => (
+                    <BalanceCard key={balance.mandateId} balance={balance} />
+                  ))}
+                </div>
+              )}
+            </section>
+
+            {/* All User Balance Cards (mandate/all scope) */}
+            {filteredUserBalances.length > 0 && (
+              <section className={styles.section}>
+                <h2 className={styles.sectionTitle}>Benutzer-Guthaben</h2>
+                {allUserBalancesLoading ? (
+                  <div className={styles.loadingPlaceholder}>Lade Benutzer-Guthaben...</div>
+                ) : (
+                  <div className={styles.balanceGrid}>
+                    {filteredUserBalances.map((ub, idx) => (
+                      <div key={`${ub.userId}-${ub.mandateId}-${idx}`} className={styles.balanceCard}>
+                        <div className={styles.balanceHeader}>
+                          <h3 className={styles.mandateName}>{ub.userName || ub.userId?.slice(0, 8)}</h3>
+                          <span className={styles.billingModel}>{ub.mandateName}</span>
+                        </div>
+                        <div className={styles.balanceAmount}>
+                          {_formatCurrency(ub.balance || 0)}
+                        </div>
+                      </div>
+                    ))}
+                  </div>
+                )}
+              </section>
+            )}
+
+            {/* Usage Statistics via FormGeneratorReport */}
+            <section className={styles.section}>
+              <FormGeneratorReport
+                title={selectedScope === 'personal' ? 'Meine Nutzung' : 'Nutzungsübersicht'}
+                loading={statsLoading}
+                sections={overviewSections}
+                noDataMessage="Keine Statistiken verfügbar"
+                currencyCode="CHF"
+              />
+            </section>
+          </>
+        );
+      })()}
 
       {/* ================================================================ */}
       {/* Tab: Statistik (Dashboard) */}
@@ -474,7 +578,7 @@ export const BillingDataView: React.FC = () => {
           <FormGeneratorTable
             data={transactions}
             columns={columns}
-            apiEndpoint="/api/billing/balance"
+            apiEndpoint="/api/billing/view/users/transactions"
             loading={transactionsLoading}
             pagination={true}
             pageSize={25}

src/pages/views/teamsbot/TeamsbotSettingsView.tsx

@@ -1,7 +1,7 @@
 import React, { useState, useEffect, useCallback, useRef } from 'react';
 import { useCurrentInstance } from '../../../hooks/useCurrentInstance';
 import * as teamsbotApi from '../../../api/teamsbotApi';
-import type { TeamsbotConfig, ConfigUpdateRequest, VoiceLanguage, VoiceOption } from '../../../api/teamsbotApi';
+import type { TeamsbotConfig, ConfigUpdateRequest, VoiceOption } from '../../../api/teamsbotApi';
 import { FaPlay, FaSpinner } from 'react-icons/fa';
 import styles from './Teamsbot.module.css';