Upstream Mike PR review

[github-actions]

Automated-Upstream-Mike-Sync: true

Summary

Reviewed all 8 PRs against current ROSS main. No change is safely portable, so the combined patch is empty. Working tree was not modified.

Upstream classifications

• Upstream-Mike-PR: 274 — investigate — Large, architecture-dependent feature spanning migrations, schemas, backend behavior, APIs, and UI; exceeds automatic-adoption limits.
• Upstream-Mike-PR: 281 — skip — Tests target upstream tabular-review, Supabase, and API behavior absent or divergent in ROSS; ROSS also lacks the referenced Vitest setup.
• Upstream-Mike-PR: 248 — investigate — Security-sensitive prompt-injection mitigation affecting backend request and tool execution paths; prohibited from automatic inclusion.
• Upstream-Mike-PR: 282 — investigate — Large infrastructure and deployment change involving Docker, embedded Supabase, storage, provider models, environment configuration, and APIs.
• Upstream-Mike-PR: 284 — skip — The referenced Vitest coverage configuration is absent in ROSS, and lowering an upstream-specific coverage threshold is non-portable.
• Upstream-Mike-PR: 174 — investigate — Changes destructive deletion behavior and depends on upstream explorer architecture; requires deliberate behavioral review despite its UI elements.
• Upstream-Mike-PR: 283 — investigate — Backend request validation changes public request handling, side effects, and data boundaries; protected operational behavior.
• Upstream-Mike-PR: 287 — investigate — Intertwines documentation with authentication defaults, environment settings, Supabase, deployment, provider keys, and cryptographic export guidance.

Safety

Only mechanically permitted low-risk paths are included. Baseline, bounded repair, exact-head review gates, and mergeability checks remain authoritative.