[feature]: Implementing Jobservice Dashboard in CLI

[NishchayRajput]

Problem

Implement end-to-end “Job Service Dashboard parity” in Harbor CLI as one cohesive feature set, including command completeness, UX consistency, and predictable error behavior.

Parent Issue: #737

Proposed Solution

Proposed feature scope:

Complete command surface:

• jobservice pools list
• jobservice workers list, free, free-all
• jobservice queues list, stop, pause, resume (single/all/multi-select)
• jobservice schedules list, status, pause-all, resume-all
• jobservice jobs log

Consistent RBAC/auth messaging:

• Friendly and actionable messages for 401/403 across all jobservice commands.

Consistent interaction model:

• Interactive mode with navigation-friendly cancel behavior.
• State-aware selectors (pause shows unpaused, resume shows paused).
• Bulk actions via multi-select and multi-value flags.

Operator-ready output:

• Clear table output for humans and structured output for automation.
• Per-action summaries for bulk operations (success/failure)

Alternatives Considered

Have you considered any alternative approaches or workarounds?

Additional Context

This issue is for the complete Job Service Dashboard feature track.

• Functional parity for core dashboard workflows.
• Consistent and meaningful user-facing errors.
• Interactive and non-interactive workflows both production-ready.
• Documentation and examples for admin usage.