Authorize CDP targets with the caller's operation instead of a fixed
inspect_web_page label, and reuse the authorization owner's derived
origin scope. When a browser observation failure is attributed to a
different operation, keep its producer detail, remediation, cleanup,
diagnostics, partial observation and original cause rather than
rebuilding it from the reason alone. Both the CDP browser and CDP
Electron providers use the same domain-owned relabel.
Fixes#6122
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>