fix: biometric attendance timezone shift and mandatory lesson binding

manager/components/AttendanceCapture.tsx

@@ -231,11 +231,41 @@ const AttendanceCapture: React.FC<AttendanceCaptureProps> = ({ data, updateData
       return;
     }
 
+    // Encontrar a aula ativa para esta turma/aluno no momento da captura
+    const nowLocal = new Date();
+    const activeLesson = (data.lessons || []).find(l => {
+      if (l.classId !== detectedClassId || l.status === 'cancelled') return false;
+      const lessonDate = l.date; // YYYY-MM-DD
+      const startStr = `${lessonDate}T${l.startTime || '00:00'}:00`;
+      const endStr = `${lessonDate}T${l.endTime || '23:59'}:00`;
+      const lessonStart = new Date(startStr);
+      const lessonEnd = new Date(endStr);
+      // Janela: 30 min antes do início até o fim da aula
+      const windowStart = new Date(lessonStart.getTime() - 30 * 60 * 1000);
+      return nowLocal >= windowStart && nowLocal <= lessonEnd;
+    });
+
+    // REGRA ESTRITA: A presença só pode ser marcada se houver uma aula ativa
+    if (!activeLesson) {
+      showAlert('Atenção', "Nenhuma aula ativa detectada para esta turma no momento. A presença só pode ser registrada a partir de 30 minutos antes do início até o término da aula.", 'warning');
+      cancelCapture();
+      return;
+    }
+
+    // Gerar string de data local (YYYY-MM-DDTHH:MM:SS) sem fuso UTC para evitar o bug do dia seguinte
+    const localDateStr = nowLocal.getFullYear() + '-' + 
+      String(nowLocal.getMonth() + 1).padStart(2, '0') + '-' + 
+      String(nowLocal.getDate()).padStart(2, '0') + 'T' + 
+      String(nowLocal.getHours()).padStart(2, '0') + ':' + 
+      String(nowLocal.getMinutes()).padStart(2, '0') + ':' + 
+      String(nowLocal.getSeconds()).padStart(2, '0');
+
     const newAttendance: Attendance = {
       id: crypto.randomUUID(),
       studentId: detectedStudentId,
       classId: detectedClassId,
-      date: new Date().toISOString(),
+      lessonId: activeLesson.id, // Vínculo obrigatório agora
+      date: localDateStr,
       photo: capturedImage,
       type: 'presence',
       verified: true

manager/components/AttendanceQuery.tsx

@@ -39,12 +39,18 @@ const AttendanceQuery: React.FC<AttendanceQueryProps> = ({ data, updateData, dee
   const [showAbsenceModal, setShowAbsenceModal] = useState(false);
   const [isClosing, setIsClosing] = useState(false);
   const [isClosing2, setIsClosing2] = useState(false);
-  const [selectedDate, setSelectedDate] = useState(new Date().toISOString().split('T')[0]);
+  // Função para obter data local YYYY-MM-DD sem risco de fuso horário UTC
+  const getTodayLocal = () => {
+    const d = new Date();
+    return d.getFullYear() + '-' + String(d.getMonth() + 1).padStart(2, '0') + '-' + String(d.getDate()).padStart(2, '0');
+  };
+
+  const [selectedDate, setSelectedDate] = useState(getTodayLocal());
   const [isGeneratingPDF, setIsGeneratingPDF] = useState(false);
 
   const [absenceStudentId, setAbsenceStudentId] = useState('');
   const [absenceJustification, setAbsenceJustification] = useState('');
-  const [absenceDate, setAbsenceDate] = useState(new Date().toISOString().split('T')[0]);
+  const [absenceDate, setAbsenceDate] = useState(getTodayLocal());
   const [absenceLessonId, setAbsenceLessonId] = useState('');
   const [viewingAttachment, setViewingAttachment] = useState<string | null>(null);
   const [attendanceForAttachment, setAttendanceForAttachment] = useState<Attendance | null>(null);
@@ -74,11 +80,19 @@ const AttendanceQuery: React.FC<AttendanceQueryProps> = ({ data, updateData, dee
       const lesson = data.lessons.find(l => l.id === record.id.replace('v-', ''));
       const newType = (record.type === 'absence' || record.type === 'awaiting') ? 'presence' : 'absence';
 
+      const now = new Date();
+      const localDate = now.getFullYear() + '-' + 
+        String(now.getMonth() + 1).padStart(2, '0') + '-' + 
+        String(now.getDate()).padStart(2, '0') + 'T' + 
+        String(now.getHours()).padStart(2, '0') + ':' + 
+        String(now.getMinutes()).padStart(2, '0') + ':' + 
+        String(now.getSeconds()).padStart(2, '0');
+        
       const newRecord: Attendance = {
         id: crypto.randomUUID(),
         studentId: record.studentId,
         classId: record.classId,
-        date: lesson ? `${lesson.date}T${lesson.startTime || '00:00'}:00` : new Date().toISOString(),
+        date: lesson ? `${lesson.date}T${lesson.startTime || '00:00'}:00` : localDate,
         verified: true,
         type: newType,
         ...(lesson ? { lessonId: lesson.id } : {}) // Vinculação rígida para não haver duplicidade

manager/types.ts

@@ -161,7 +161,8 @@ export interface Attendance {
   id: string;
   studentId: string;
   classId: string;
-  date: string; // ISO String
+  lessonId?: string;
+  date: string; // ISO String ou Local ISO
   photo?: string; // Base64 (Optional for absences)
   verified: boolean;
   type?: 'presence' | 'absence';

portal/src/types.ts

@@ -58,7 +58,8 @@ export interface Attendance {
   id: string;
   studentId: string;
   classId: string;
-  date: string; // ISO String (UTC)
+  lessonId?: string;
+  date: string; // ISO String (UTC) ou Local ISO
   photo?: string;
   verified: boolean;
   type?: 'presence' | 'absence';