[9-71]

Overview

Consolidate Studio documentation for setup, daily use, architecture, APIs, runtime behavior, security, and testing.

• Add a quick start and user guide for submitting jobs, viewing logs, cancelling tasks, and downloading results.
• Document service configuration, task lifecycle, persistence, artifacts, and checkpoint recovery.
• Add API examples and the generated JobRequest JSON schema.
• Update the root READMEs and F1 documentation links to the Studio guides.

Validation

• Documentation review: 15 pages and 84 local links/anchors checked.
• Python examples: 8 syntax checks passed.
• Studio documentation: MkDocs strict build passed.
• Codespell and git diff --check: passed.
• Full-site validation identified pre-existing MkDocs configuration and Zensical YAML parsing issues, both reproduced on the unmodified baseline.

Related to #299

[isLinXu]

LGTM