Fix some IDE warnings, mostly around type safety on the Python side

server/handlers/api/addspot.py

@@ -2,9 +2,12 @@ import json
 import logging
 import re
 from datetime import datetime
+from typing import Any
 
 import pytz
 import tornado
+from tornado import httputil
+from tornado.web import Application
 
 from core.config import ALLOW_SPOTTING, MAX_SPOT_AGE
 from core.constants import UNKNOWN_BAND
@@ -19,6 +22,11 @@ from data.spot import Spot
 class APISpotHandler(tornado.web.RequestHandler):
     """API request handler for /api/v1/spot (POST)"""
 
+    def __init__(self, application: "Application", request: httputil.HTTPServerRequest, **kwargs: Any):
+        self._spots = None
+        self._web_server_metrics = None
+        super().__init__(application, request, **kwargs)
+
     def initialize(self, spots, web_server_metrics):
         self._spots = spots
         self._web_server_metrics = web_server_metrics