Add pscale branch query-patterns list, show, and delete

[no-itsbackpack]

download still generates a new report. Add list/show/delete for reports that already exist.

pscale branch query-patterns list mydb main --org myorg
pscale branch query-patterns show mydb main report_xxx --org myorg
pscale branch query-patterns delete mydb main report_xxx --org myorg --force

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, have a team admin enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 4e38b07. Configure here.}

[cursor]

Risk: medium. Left a non-blocking comment; not approved because Cursor Bugbot finished skipped and reported 1 unresolved issue. Human review is needed; no reviewers were assigned.

  

_{Sent by Cursor Approval Agent: cli-reviewer}