versiondiff

type CapabilityChange struct {
	Package string   `json:"package"`
	Added   []string `json:"added,omitempty"`
	Removed []string `json:"removed,omitempty"`
}

type DiffReport struct {
	Base             string
	NewPackages      []PackageDiff
	Escalations      []PackageDiff
	BlastRadiusDelta int     // change in affected-package count
	Score            float64 // 0-20
	// UpgradeSummary lists per-package capability changes across the diff.
	UpgradeSummary []CapabilityChange `json:"upgrade_summary,omitempty"`
}

type PackageDiff struct {
	Package    string
	ChangeType string // "new" | "escalated" | "new_install_script" | "blast_radius"
	OldCaps    []string
	NewCaps    []string
	RiskDelta  float64
}