fix(review): restore focused check details safely

[limityan]

Summary

• open Review check cards into the real child-session detail instead of an empty shell
• project transcript availability and execution outcome independently across timeout, stop, failure, restart, and remote-session recovery
• keep history hydration under one FlowChat manager owner and make detail loading read-only, without rerunning the model
• persist one runtime-admitted public label while keeping prompts, capability keys, paths, packet IDs, and other coordination fields out of UI events
• return authoritative cancellation results from desktop and server adapters, and wait for runtime confirmation before showing a stopped state

Boundaries

• no new Review taxonomy, scheduler, cache, telemetry subsystem, or second lifecycle owner
• no model rerun when details are opened or reloaded
• language auto-follow behavior is intentionally outside this PR
• architecture and recovery behavior are documented in docs/architecture/review-lifecycle.md

Validation

Area	Result
Review UI behavior	8 focused files, 171 tests passed
Frontend contracts	type-check, lint, i18n audit passed
Focused assignment admission	10 Rust tests passed
Event projection	2 Rust tests passed
Review launch contract	5 Rust tests passed
Desktop session recovery	1 targeted Rust test passed
Repository boundaries	core-boundary, repository-hygiene, and theme audits passed
Independent review	architecture, correctness, and product reviewers reported no P0-P2 findings

Known build output is limited to existing dependency deprecation notices and the existing Windows linker warning.