new features

backend/src/services/vehicle.service.ts

@@ -299,6 +299,15 @@ class VehicleService {
         ]
       );
 
+      // Record status change history
+      if (oldStatus !== status) {
+        await client.query(
+          `INSERT INTO fahrzeug_status_historie (fahrzeug_id, alter_status, neuer_status, bemerkung, geaendert_von)
+           VALUES ($1, $2, $3, $4, $5)`,
+          [id, oldStatus, status, bemerkung || null, updatedBy]
+        );
+      }
+
       await client.query('COMMIT');
 
       logger.info('Vehicle status updated', { id, from: oldStatus, to: status, by: updatedBy });
@@ -574,6 +583,48 @@ class VehicleService {
       throw new Error('Failed to fetch inspection alerts');
     }
   }
+
+  // =========================================================================
+  // STATUS HISTORY
+  // =========================================================================
+
+  async getStatusHistory(fahrzeugId: string) {
+    try {
+      const result = await pool.query(
+        `SELECT h.*, u.display_name AS geaendert_von_name
+         FROM fahrzeug_status_historie h
+         LEFT JOIN users u ON u.id = h.geaendert_von
+         WHERE h.fahrzeug_id = $1
+         ORDER BY h.erstellt_am DESC
+         LIMIT 50`,
+        [fahrzeugId]
+      );
+      return result.rows;
+    } catch (error) {
+      logger.error('VehicleService.getStatusHistory failed', { error, fahrzeugId });
+      throw new Error('Status-Historie konnte nicht geladen werden');
+    }
+  }
+
+  // =========================================================================
+  // WARTUNGSLOG FILE UPLOAD
+  // =========================================================================
+
+  async updateWartungslogFile(wartungId: number, filePath: string) {
+    try {
+      const result = await pool.query(
+        `UPDATE fahrzeug_wartungslog SET dokument_url = $1 WHERE id = $2 RETURNING *`,
+        [filePath, wartungId]
+      );
+      if (result.rows.length === 0) {
+        throw new Error('Wartungseintrag nicht gefunden');
+      }
+      return result.rows[0];
+    } catch (error) {
+      logger.error('VehicleService.updateWartungslogFile failed', { error, wartungId });
+      throw error;
+    }
+  }
 }
 
 export default new VehicleService();