feat: add preset skip flag

project_manager/preset/entry.py

@@ -1,4 +1,3 @@
-from cmath import pi
 from collections import defaultdict
 from pathlib import Path
 from typing import Optional
@@ -19,6 +18,8 @@ class PresetEntryDetector(EntryDetector):
 
     def detect_entry(self, basepath: Path) -> Optional["Entry"]:
         preset = PresetResolver(basepath, self._preset_resolver_config).resolve_preset()
+        if preset.skip:
+            return
         piperunner = PipeRunner(basepath)
         tasks = defaultdict(list)
         for preset_name, preset in preset.presets.items():