~anthropic/claude-sonnet-latest → A (3:2)

Commit A fixes a real production bug (hardcoded staging hostnames breaking OAuth/redirect URLs across multiple services) with a single reusable get-base-url helper, plus a small necessary CI fix — a concrete, low-risk correctness improvement. Commit B is a large CLI restructuring (forum list/show/post subcommands, docs, RPC hint strings) that is reasonable but is churn-heavy, unifies naming rather than fixing a bug, and touches many files with mostly cosmetic/interface renaming risk.