chore: format changelog.md

Author: kenryu42

CHANGELOG.md

@@ -1,21 +1,16 @@
-# Changelog
-
 ## 0.1.0 (2025-12-09)
 
-
 ### Features
 
-* add export-project-plans slash command ([f4f8424](https://github.com/kenryu42/claude-code-plan-export/commit/f4f8424fdb20ff76b14aaa9535e29767987da2e4))
-* add plan export hook script ([8cea330](https://github.com/kenryu42/claude-code-plan-export/commit/8cea3301f2b25ecc0337263462acf8bf4cf72171))
-* add plugin metadata ([e85180f](https://github.com/kenryu42/claude-code-plan-export/commit/e85180f9dd90b907687cb49e5c26931982ce61ed))
-* add project-wide plan export script ([3a00764](https://github.com/kenryu42/claude-code-plan-export/commit/3a007643f5b5ecc9c088b4d5d88d689416b26f90))
-* add session hooks configuration ([3c0e4ae](https://github.com/kenryu42/claude-code-plan-export/commit/3c0e4aee96783a7573cd98a15deea749c22857d8))
-* add session start hook script ([8df7bc2](https://github.com/kenryu42/claude-code-plan-export/commit/8df7bc2c11adfbb2039d3e0a5e6dc72ebb0b5486))
+- add export-project-plans slash command ([f4f8424](https://github.com/kenryu42/claude-code-plan-export/commit/f4f8424fdb20ff76b14aaa9535e29767987da2e4))
+- add plan export hook script ([8cea330](https://github.com/kenryu42/claude-code-plan-export/commit/8cea3301f2b25ecc0337263462acf8bf4cf72171))
+- add plugin metadata ([e85180f](https://github.com/kenryu42/claude-code-plan-export/commit/e85180f9dd90b907687cb49e5c26931982ce61ed))
+- add project-wide plan export script ([3a00764](https://github.com/kenryu42/claude-code-plan-export/commit/3a007643f5b5ecc9c088b4d5d88d689416b26f90))
+- add session hooks configuration ([3c0e4ae](https://github.com/kenryu42/claude-code-plan-export/commit/3c0e4aee96783a7573cd98a15deea749c22857d8))
+- add session start hook script ([8df7bc2](https://github.com/kenryu42/claude-code-plan-export/commit/8df7bc2c11adfbb2039d3e0a5e6dc72ebb0b5486))
 
 ## Changelog
 
----
-
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),