fixed pyservectl linter errors and formatting

pyserve/ctl/commands/scale.py

@@ -4,6 +4,7 @@ pyserve scale - Scale services
 
 import asyncio
 from pathlib import Path
+from typing import Any
 
 import click
 
@@ -23,7 +24,7 @@ import click
     help="Don't wait for services to be ready",
 )
 @click.pass_obj
-def scale_cmd(ctx, scales: tuple, timeout: int, no_wait: bool):
+def scale_cmd(ctx: Any, scales: tuple[str, ...], timeout: int, no_wait: bool) -> None:
     """
     Scale services to specified number of workers.
 
@@ -66,7 +67,7 @@ def scale_cmd(ctx, scales: tuple, timeout: int, no_wait: bool):
 
     console.print("[bold]Scaling services...[/bold]")
 
-    async def do_scale():
+    async def do_scale() -> None:
         for service, workers in scale_map.items():
             current = all_services[service].workers or 1
             print_info(f"Scaling {service}: {current} → {workers} workers")