refactor: remove unused base_url parameter from create_invite and update fallback URL logic

backend/api/v1/modules/core/invites/routes.py

@@ -4,7 +4,6 @@ import logging
 
 from core.database import get_core_db
 from core.security import get_current_user, validate_access_to_resource
-from core.config import settings
 from fastapi import APIRouter, Depends, Query, Request
 from sqlalchemy.orm import Session
 
@@ -37,12 +36,10 @@ async def create_invite(
 
     tenant_slug: str = current_user.get("tenant_slug") or ""
     created_by: str = current_user.get("sub") or ""
-    base_url = settings.APP_PUBLIC_URL.rstrip("/")
 
     service = InviteService(db)
     return await service.create_invite(
         data=data,
         created_by=created_by,
         tenant_slug=tenant_slug,
-        base_url=base_url,
     )

backend/api/v1/modules/core/invites/service.py

@@ -45,7 +45,6 @@ class InviteService:
         data: CreateInviteDTO,
         created_by: str,
         tenant_slug: str,
-        base_url: str,
     ) -> InviteResponseDTO:
         import httpx
         from api.v1.modules.core.tenants.models import Tenant
@@ -99,10 +98,11 @@ class InviteService:
         except Exception as exc:
             logger.warning("Hub invite creation failed (non-blocking): %s", exc)
 
-        # Fallback: URL local si el Hub falló
+        # Fallback: URL del workspace (Hub) si la creación de invitación en Hub falló
         if not invite_url:
+            hub_base = settings.HUB_URL.rstrip("/")
             invite_url = (
-                f"{base_url}/register"
+                f"{hub_base}/register"
                 f"?invite_token={token_plain}"
                 f"&tenant={tenant_slug}"
                 f"&email={data.email}"