feat / AEB-20 create csv parser

backend/sitemanagement/admin.py

@@ -28,4 +28,4 @@ class SignalFormatAdmin(admin.ModelAdmin):
 
 @admin.register(Sensor)
 class SensorAdmin(admin.ModelAdmin):
-    list_display = ('channel', 'sensor_type', 'signal_format', 'serial_number', 'name')
+    list_display = ('channel', 'sensor_type', 'signal_format', 'serial_number', 'name', 'math_formula')

backend/sitemanagement/migrations/0004_sensor_math_formula.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.5 on 2025-09-04 06:59
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sitemanagement', '0003_metric_sitemanagem_timesta_ac22b7_idx_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='sensor',
+            name='math_formula',
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+    ]

backend/sitemanagement/models.py

@@ -85,6 +85,8 @@ class Sensor(models.Model):
     name = models.CharField(max_length=50, blank=True, null=True)  # GA-1, HLE-1 и т.п.
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
+    math_formula = models.CharField(null=True, blank=True, max_length=255)
+    
     class Meta:
         verbose_name = "Датчик"
         verbose_name_plural = "Датчики"