- CHANGELOG.md: add Agent Workspace Prompt bullets under [Unreleased]; remove
stale BREAKING (CLI) and BREAKING (API) bullets about CLAUDE.md removal and
GET /api/welcome deletion — both behaviors are restored in this PR; replace
with a neutral Changed bullet describing da analyst setup writing CLAUDE.md
- docs/agent-workspace-prompt.md: operator reference for the feature (when
written, editing via UI/API, template language, full placeholder table,
Jinja2 examples, reset to default)
