version

type CreateOptions struct {
	Author  string
	Message string
}

type DiffLine struct {
	Type    DiffType
	Content string
	LineNum int
}

type DiffResult struct {
	SpecType   types.SpecType
	OldVersion int
	NewVersion int
	Lines      []DiffLine
	Additions  int
	Deletions  int
	Unchanged  int
}

type DiffType string

type History struct {
	SpecType types.SpecType `json:"spec_type"`
	Versions []Version      `json:"versions"`
}

type Version struct {
	Number    int       `json:"number"`            // Sequential version number (1, 2, 3...)
	Hash      string    `json:"hash"`              // SHA256 of content
	Timestamp time.Time `json:"timestamp"`         // When version was created
	Author    string    `json:"author,omitempty"`  // Who created this version
	Message   string    `json:"message,omitempty"` // Description of changes
	Size      int       `json:"size"`              // Content size in bytes
}