Merge origin/main: resolve conflicts in CLI surface, --prune, helpers

- Adopt origin's SnapshotPurgeOptions naming and PurgeSnapshotsWithOptions
  method, but extend with Names []string (repeatable --snapshot flag) and
  Quiet bool for use by --prune.
- Adopt origin's parseSnapshotName helper.
- Fold the duplicate post-backup prune block into one runPostBackupPrune
  call that filters retention to the snapshot names just backed up.
- Keep the shallow-verify timestamp parsing fix and the dead deep-verify
  branch removal; use origin's printVerifyHeader/verifyManifestBlobsExist
  helper extraction.
- Drop top-level vaultik purge and verify (duplicates of snapshot purge
  and snapshot verify).
- Drop the resurrected daemon block from info.go (config fields no
  longer exist).
- Combine Makefile targets: gofmt -l for fmt-check, -race for tests,
  release/release-snapshot/docker/hooks/deps/test-coverage all included.

internal/cli/snapshot.go

@@ -167,10 +167,7 @@ func newSnapshotListCommand() *cobra.Command {
 
 // newSnapshotPurgeCommand creates the 'snapshot purge' subcommand
 func newSnapshotPurgeCommand() *cobra.Command {
-	var keepLatest bool
-	var olderThan string
-	var force bool
-	var names []string
+	opts := &vaultik.SnapshotPurgeOptions{}
 
 	cmd := &cobra.Command{
 		Use:   "purge",
@@ -183,10 +180,10 @@ restrict the operation to specific snapshot names.`,
 		Args: cobra.NoArgs,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			// Validate flags
-			if !keepLatest && olderThan == "" {
+			if !opts.KeepLatest && opts.OlderThan == "" {
 				return fmt.Errorf("must specify either --keep-latest or --older-than")
 			}
-			if keepLatest && olderThan != "" {
+			if opts.KeepLatest && opts.OlderThan != "" {
 				return fmt.Errorf("cannot specify both --keep-latest and --older-than")
 			}
 
@@ -210,13 +207,7 @@ restrict the operation to specific snapshot names.`,
 						lc.Append(fx.Hook{
 							OnStart: func(ctx context.Context) error {
 								go func() {
-									purgeOpts := &vaultik.PurgeOptions{
-										KeepLatest: keepLatest,
-										OlderThan:  olderThan,
-										Force:      force,
-										Names:      names,
-									}
-									if err := v.PurgeSnapshots(purgeOpts); err != nil {
+									if err := v.PurgeSnapshotsWithOptions(opts); err != nil {
 										if err != context.Canceled {
 											log.Error("Failed to purge snapshots", "error", err)
 											os.Exit(1)
@@ -239,10 +230,10 @@ restrict the operation to specific snapshot names.`,
 		},
 	}
 
-	cmd.Flags().BoolVar(&keepLatest, "keep-latest", false, "Keep only the latest snapshot of each name")
-	cmd.Flags().StringVar(&olderThan, "older-than", "", "Remove snapshots older than duration (e.g., 30d, 6m, 1y)")
-	cmd.Flags().BoolVar(&force, "force", false, "Skip confirmation prompt")
-	cmd.Flags().StringArrayVar(&names, "snapshot", nil, "Restrict to snapshots with these names (repeat for multiple)")
+	cmd.Flags().BoolVar(&opts.KeepLatest, "keep-latest", false, "Keep only the latest snapshot of each name")
+	cmd.Flags().StringVar(&opts.OlderThan, "older-than", "", "Remove snapshots older than duration (e.g., 30d, 6m, 1y)")
+	cmd.Flags().BoolVar(&opts.Force, "force", false, "Skip confirmation prompt")
+	cmd.Flags().StringArrayVar(&opts.Names, "snapshot", nil, "Restrict to snapshots with these names (repeat for multiple)")
 
 	return cmd
 }