Add cre workflow logs command

[nadahalli]

Summary

• Adds cre workflow logs <workflow-name> subcommand that queries the GraphQL API for execution history
• Shows timestamps, status, duration, and error details for failed executions
• Supports --follow / -f for continuous polling (like tail -f) and --limit / -n to control page size
• Takes a workflow name directly (no project folder required), only needs credentials

Example output

Workflow: blocknumber-tracker-staging

TIMESTAMP                 STATUS        DURATION    EXECUTION ID
2026-02-12T15:58:00Z      failure       1.0s        b14b7903
  -> confidential-http@1.0.0-alpha: [2]Unknown: Private:method SendRequest not found
2026-02-12T15:59:00Z      failure       1.0s        2b40e730
  -> confidential-http@1.0.0-alpha: [2]Unknown: Private:method SendRequest not found
2026-02-12T16:00:01Z      failure       0ms         e5d860c8
  -> confidential-http@1.0.0-alpha: [2]Unknown: Private:method SendRequest not found

Notes

• Uses existing workflowExecutions and workflowExecutionEvents GraphQL queries (same as the web dashboard)
• Excluded from isLoadSettings in root.go since it doesn't need a project folder or workflow settings
• UX difference from other workflow subcommands: takes <workflow-name> directly instead of <workflow-folder-path> since it's a read-only query, not a contract interaction

[github-actions]

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