IRIS-1337

[Agent LP E2E] Rerun landing variants with Codex humanizer pass

Duplicate of IRIS-1331 to rerun the Agent Landing Page flow after adding the Codex humanizer post-pass.

Create 3 production-quality landing page variants for IRIS targeting after-hours answering service demand.

Primary SEO seed: after hours answering service.

Required generation behavior: run SEMrush research during initial generation, write the SEMrush evidence JSON, then run the Codex humanizer pass, rerun SEMrush, overwrite the same SEMrush evidence JSON, and rewrite the existing HTML copy in place before validation.

Required cleanup behavior: use the repo-local humanizer skill, remove obvious AI-writing tells, preserve layout/CTA/telemetry, and fail closed if SEMrush has no usable findings.

PR-only launch test is not required for this duplicate unless explicitly requested; this ticket is intended to confirm generation reaches review with humanized copy and no fallback messages.

Source ticket: IRIS-1331

Options

Keep the variants that should receive traffic.

Variant A

- answering service volume=6600 cpc=59.07 competition=0.55 - anser volume=4400 cpc=n/a competition=n/a - phone answering service volume=3600 cpc=52.08 competition=0.21

Conversion5/5SEO5/5Brand5/5Visual5/5

Variant B

- answering service volume=6600 cpc=59.07 competition=0.55 - anser volume=4400 cpc=n/a competition=n/a - phone answering service volume=3600 cpc=52.08 competition=0.21

Conversion5/5SEO5/5Brand5/5Visual5/5

Variant C

- answering service volume=6600 cpc=59.07 competition=0.55 - anser volume=4400 cpc=n/a competition=n/a - phone answering service volume=3600 cpc=52.08 competition=0.21

Conversion5/5SEO5/5Brand5/5Visual5/5