feat(auto): complete Speedly catcher and sayer milestone

[mshegolev]

Summary

• add live auto tuning with latency diagnostics and structured playback/response decisions
• add auto preflight plus trigger sample eval/list/replay/report workflow
• complete v1.0 GSD roadmap artifacts and docs

Verification

• .venv/bin/python -m pytest -q
• git diff --check
• .venv/bin/saymo --help
• .venv/bin/saymo trigger-samples --help
• .venv/bin/saymo auto-preflight --help
• .venv/bin/saymo trigger-eval --help