v0.2.0: 0.1.2 field renames versioned as breaking

0.1.2 field renames versioned as breaking

• The per-target error output field was renamed on attacksurface_enumerate_subdomains, attacksurface_inspect_tls, attacksurface_probe_http, and attacksurface_resolve_dns in 0.1.2. The old names are gone, so a client still reading them sees undefined and treats a failed probe as a clean one.
• No source change ships here — 0.2.0 corrects the version floor and changelog record for that break. Upgrade from 0.1.1 or earlier to 0.2.0, not 0.1.2; the per-field migration table is in the changelog.

CHANGELOG v0.2.0