feat(commit): 添加提交消息模板支持

- 移除 config 命令中未使用的 List 子命令及相关显示字段
- 统一 ChangelogCommand 和 CommitCommand 的 ContentGenerator 初始化方式

tests/config_export_import_tests.rs

@@ -126,31 +126,14 @@ api_key_storage = "keyring"
 [commit]
 format = "conventional"
 auto_generate = true
-allow_empty = false
-gpg_sign = false
-max_subject_length = 100
-require_scope = false
-require_body = false
-body_required_types = ["feat", "fix"]
 
 [tag]
 version_prefix = "v"
 auto_generate = true
-gpg_sign = false
-include_changelog = true
 
 [changelog]
 path = "CHANGELOG.md"
 auto_generate = true
-format = "keep-a-changelog"
-include_hashes = false
-include_authors = false
-group_by_type = true
-
-[theme]
-colors = true
-icons = true
-date_format = "%Y-%m-%d"
 
 [language]
 output_language = "en"