[RAPTOR-17801] docs: add dr artifact and dr workload command reference

[wojtekwdr]

RATIONALE

The dr artifact and dr workload command groups had no user-facing documentation. This adds their command-reference pages so users can discover and use them.

CHANGES

• Add docs/commands/artifact.md: reference for the dr artifact group: the draft-to-locked lifecycle (create / get / list / lock / delete), build (create / get / list / logs), and code (init / sync / versions / checkout, backed by the .wapi/ state dir).
• Add docs/commands/workload.md: reference for the dr workload group (create / get / list / delete / start / stop / status / endpoint / logs), including the async status lifecycle and the artifact-to-workload relationship.
• Both pages follow the existing pipeline.md structure: synopsis, description, command-groups table with endpoints, per-subcommand usage and flags, examples, and an error-handling table.
• Link both from docs/commands/README.md (main commands table, command tree, and command details).
• The pages are left out of the mkdocs.yml nav while both groups remain gated behind DATAROBOT_CLI_FEATURE_WORKLOAD.

TESTING

• markdownlint-cli2 reports no errors on the two new pages.
• mkdocs build succeeds; all cross-links resolve and the pages render.

PR Automation

Comment-Commands: Trigger CI by commenting on the PR:

• /trigger-smoke-test or /trigger-test-smoke - Run smoke tests
• /trigger-install-test or /trigger-test-install - Run installation tests

Labels: Apply labels to trigger workflows:

• run-smoke-tests or go - Run smoke tests on demand (only works for non-forked PRs)

Important

For Forked PRs: The run-smoke-tests label won't work. A required Smoke Tests check will block merge until a maintainer acts:

• A maintainer uses /approve-smoke-tests to run smoke tests (results will set the check)
• A maintainer uses /skip-smoke-tests to bypass the check without running tests

Please comment requesting a maintainer review if you need smoke tests to run.

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Note

Low Risk
Documentation-only changes with no runtime or CLI behavior impact.

Overview
Adds user-facing command reference for the feature-gated dr artifact and dr workload (alias wl) groups, which previously had no dedicated docs.

docs/commands/artifact.md documents the draft→locked artifact lifecycle, build subcommands, and code sync via .wapi/, aligned with the existing pipeline.md layout (synopsis, API mapping tables, flags, examples, HTTP error table).

docs/commands/workload.md covers deploy/operate flows (async status, endpoint / logs for scripting), with the same structure.

docs/commands/README.md is updated to list both commands in the main table, expand the command tree, and add command-details bullets; the main commands table formatting is widened for alignment.

^{Reviewed by Cursor Bugbot for commit dee5fef. Configure here.}