feat: add ticket status filters

backend/apps/tickets/api.py

@@ -1,4 +1,5 @@
 import csv
+from datetime import timedelta
 from math import ceil
 
 from django.contrib.auth import get_user_model
@@ -146,6 +147,8 @@ def list_tickets(
     related_system: str | None = None,
     assignee_id: int | None = None,
     view: str = "all",
+    status_group: str | None = None,
+    resolved_within_days: int | None = None,
 ):
     require_permission(request, "ticket.view")
     queryset = Ticket.objects.select_related("requester", "assignee", "category").all()
@@ -175,6 +178,18 @@ def list_tickets(
         queryset = queryset.filter(created_by=request.user)
     if view == "high_priority":
         queryset = queryset.filter(priority__in=["high", "urgent"])
+    if status_group == "active":
+        queryset = queryset.exclude(status__in=["resolved", "closed"])
+    elif status_group == "completed":
+        queryset = queryset.filter(status__in=["resolved", "closed"])
+    elif status_group:
+        raise HttpError(400, "Unknown status group")
+    if resolved_within_days is not None:
+        days = min(max(resolved_within_days, 1), 365)
+        cutoff = timezone.now() - timedelta(days=days)
+        queryset = queryset.filter(
+            Q(resolved_at__gte=cutoff) | Q(closed_at__gte=cutoff)
+        )
 
     page = max(page, 1)
     page_size = min(max(page_size, 1), 100)