cli: action-oriented lists and views at a terminal #314

Action-oriented content at a terminal; plain columns unchanged except where noted.

• dashboard: a "needs you" summary line, non-empty action sections first, activity cut to 8 rows.
• mr list: draft, checks, review state, updated age. issue list: labels, assignee, comments, updated age. Per-row data from one batch query per page.
• repo show: clone URL, open counts, latest release, last build.
• repo log: author name only, age column. repo refs: SortVersions, newest first, default branch marked (plain order changes). repo tree: name first, sizes humanized.
• release list date; release show sizes; build show steps; feed colours; milestone due/progress; audit key=value; current key/session marked; whoami detail; URL line after mutations; admin runners full fingerprints.

Spec: docs/specs/2026-10-01-cli-terminal-output-design.md