add warnings for slack members channel open

app/slack.py

@@ -82,13 +82,14 @@ def slack_authz(user_id: str, channel_id: str, door: str) -> Tuple[bool, str]:
         case "workshopdoor":
             authGroup = "k-space:workshop"
         case _:
+            print(f"WARN: unknown slack door {door}")
             return False, "Invalid door (git.k-space.ee/k-space/doorboy-proxy)"
 
     groups, user = kube.by_slackid(user_id)
     if user is None:
         if authGroup == "k-space:floor":
             if channel_id == SLACK_CHANNEL_ID:
-                return True, "🖕 #members user {user_id}"
+                return True, "🖕 {user_id}"
 
             return False, f"No user with slack_id {user_id}. Try in #members or doorboy.k-space.ee.",
         else:
@@ -132,4 +133,9 @@ async def slack_open(request):
             }
         )
 
+    if userOrErrorMsg.startswith("🖕"):
+        slackId = userOrErrorMsg.removeprefix("🖕 ")
+        print(f"WARN: slack #members open with unlinked ID {slackId}")
+        return text(f"Opening {door}… This will stop working! Your Slack ID {slackId} is not linked with auth.k-space.ee, please notify info@k-space.ee.")
+
     return text(f"Opening {door}…")