Intake текущей сессии: чекпоинт трассируемости Linear-first

## Что это ## Резюме (RU) Intake текущей сессии: чекпоинт трассируемости Linear-first *Полный перевод тела — в работе. Английский оригинал ниже.* --- # Original (EN) ### Objective Preserve and track the current agent/session state under the Linear-first protocol before any further ROX.ONE implementation. This issue is the PM trace for the intake/checkpoint itself, not the feature implementation. ### Source Links * GitHub issue: [https://github.com/agisota/rox.one/issues/271]() * GitHub PR: [https://github.com/agisota/rox.one/pull/301]() and [https://github.com/agisota/rox.one/pull/272]() * GitHub branch: `feat/artifact-panel-271-clean` for PR #301; local candidate branch `mac/session-startup-switch-performance` observed in `/Users/marklindgreen/Projects/rox-one-terminal` * GitHub Project item: [https://github.com/users/agisota/projects/9]() * DeepWiki/repo context: [https://deepwiki.com/agisota/rox.one]() * Local branch / cwd: `/Users/marklindgreen`; no exact local checkout at `/Users/marklindgreen/Projects/rox.one` found during intake ### Current State * Implementation was paused for Linear intake. * GitHub #271 is open. * PR #301 exists for the focused artifact-panel slice and is open / non-draft / mergeable at verification time. * PR #272 is merged and was moved to Done in Linear/GitHub Project tracking. * Local worktree snapshots were recorded; no destructive git commands were run. * PZD-10 and PZD-35 were moved to In Review based on PR #301 state. * A stale-reference correction was posted to PZD-13 because that identifier currently belongs to the release-feed task, not this intake. ### Requirements * Do not lose current branch, worktree, diff, or state. * Do not run `git reset`, `git checkout --`, force-push, or branch deletion. * Keep Linear as PM/roadmap/backlog/traceability layer and GitHub as engineering source of truth. * Do not print or persist secrets. * Record verification evidence before resuming implementation. ### Specification * Affected surfaces: Linear PZD project, GitHub issue #271, PR #301, PR #272, GitHub Project #9, local worktree status. * Data/API changes: none in code; only Linear/GitHub metadata updates. * UI behavior: not applicable. * Error handling: stale Linear identifiers must be correc... ## Статус Это задача из текущего backlog'а ROX.ONE (Linear). Текущий статус в Linear: `В работе — In Progress`. Метки: —. ## 🔗 Linear - [PZD-71](https://linear.app/kuhjie/issue/PZD-71/intake-tekushej-sessii-chekpoint-trassiruemosti-linear-first-current) — backing ticket - Parent epic: [PZD-116](https://linear.app/kuhjie/issue/PZD-116)