• Merge pull request #898 from kaitranntt/kai/feat/897-cli-help-completion-ux
• fix(completion): close shell completion review gaps
• fix(completion): fail closed on backend errors
• fix(cursor): tear down oversized daemon model responses
• test(cli): isolate root router completion coverage
• refactor(cli): slim cursor completion imports
• docs(roadmap): note CLI help and completion refresh
• feat(cli): refresh help and shell completion UX