chore: bump version to 0.3.0

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: future-xy

pylet/__init__.py

@@ -85,4 +85,4 @@ async def main():
     "InstanceTerminatedError",
 ]
 
-__version__ = "0.1.0"
+__version__ = "0.3.0"

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pylet"
-version = "0.2.0"
+version = "0.3.0"
 description = "A simple distributed task execution system for GPU servers"
 readme = "README.md"
 license = "Apache-2.0"