fix(cli): preserve storage stats across snapshot list filters - #5585

Context

snapshot list --storage-stats calculated deltas after applying --max-results or --reverse, so the same snapshot could report different new-data values depending on display options.

Changes

Calculate storage statistics from the complete chronological snapshot history before applying output ordering and limits. Extend the existing CLI regression test across JSON and text output.

User impact

Storage deltas remain stable when snapshot lists are limited or reversed.

Verification

• go test ./cli -count=1 — passed
• go vet -all ./cli — passed
• golangci-lint v2.6.1 formatter and static-analysis checks — passed
• make -j4 test — cli passed; the full suite retained 16 Windows-host failures that reproduce on master (symlink privileges, log-link behavior, and local-time assumptions)

Fixes #5581
Fixes #3296