Add Redis service and Celery configuration to Docker setup

- Introduced Redis service in both docker-compose files for production and development.
- Updated web and celery services to use Redis as the broker and result backend.
- Added necessary environment variables for Celery in settings.py.
- Included new tasks and soil_data apps in Django settings and updated URL routing.
- Updated requirements.txt to include Celery and Redis dependencies.

tasks/views.py

@@ -0,0 +1,51 @@
+from celery.result import AsyncResult
+
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from .celery_tasks import sample_task
+
+
+class TaskTriggerView(APIView):
+    """
+    ثبت و اجرای تسک.
+    POST با بدنه اختیاری: {"duration": 3} - مدت زمان تسک به ثانیه.
+    """
+
+    def post(self, request):
+        duration = request.data.get("duration", 1)
+        try:
+            duration = int(duration)
+            duration = max(1, min(duration, 60))
+        except (TypeError, ValueError):
+            duration = 1
+        result = sample_task.delay(duration)
+        return Response(
+            {"code": 200, "msg": "success", "data": {"task_id": result.id}},
+            status=status.HTTP_200_OK,
+        )
+
+
+class TaskStatusView(APIView):
+    """
+    وضعیت تسک بر اساس task_id.
+    GET /api/tasks/<task_id>/status/
+    """
+
+    def get(self, request, task_id):
+        result = AsyncResult(task_id)
+        state = result.state
+        data = {"task_id": task_id, "status": state}
+        if state == "PENDING":
+            data["message"] = "تسک در صف یا یافت نشد."
+        elif state == "PROGRESS":
+            data["progress"] = result.info
+        elif state == "SUCCESS":
+            data["result"] = result.result
+        elif state == "FAILURE":
+            data["error"] = str(result.result)
+        return Response(
+            {"code": 200, "msg": "success", "data": data},
+            status=status.HTTP_200_OK,
+        )