[luannn010]

Summary

• Wait for fixture load acknowledgements, request counts and titles before further preview input.
• Add a controlled pending-resource regression and failure diagnostics; retain real CDP input and existing deadlines.

Related #339. This hardens test readiness; the historical failure's cause remains unproven.

Risk/rollback: fixture readiness or held-resource cleanup could regress; revert this spec commit.

Parity rows

none

Frames built

Frames built: none

Testing

• Type/lint checks and production build pass.
• The controlled regression fails with the old title-only gate and passes with the load acknowledgement.
• Windows dev mode under continuous CPU load: target 20/20 and full spec 80/80; zero skips or retries.
• Not tested: macOS locally or real providers.

Co-authors

none

AI usage

• Written by hand, with no AI
• Harness and version: Codex 0.160.0; PowerShell/.NET, Python, Git, GitHub CLI, npm, Playwright, Cargo/Rust 1.99.1 and MSVC.
• Models: gpt-6.1-sol (investigation, test implementation, local verification and separate actual-diff review); gpt-6-luna (coordinator's bounded public issue/comment/linked-PR metadata extraction only).
• Effort: medium for both models.
• Human role: Selected the issue and delivery scope; retains final review and merge.
• Sources: Issue #339, reported CI run, existing repository source. No external code copied.

Checklist

• Works on Windows and macOS
• web/src/generated with any contract change; docs/architecture.md with any rule change
• No copied source, secrets, credentials or personal data; no AI attribution in commits, title or branch

[luannn010]

@kinqsradio ready for review at ec5d419f: all current-head checks, including CLA, are green. Related #339: this hardens fixture load readiness and restores the real-input test; the historical cause remains unproven. Local loaded qualification passed 20 isolated + 80 shared-spec cases, zero skips/retries, with independent diff review. Hosted Web and all eight E2E execution steps passed; native/platform lanes were path-gated.

[kinqsradio]

Reviewed the diff against current main; the change is scoped and the checks are green. Merging with a merge commit.