feat(masters): add direct masters archive (#633)

[axisrow]

Summary

• Adds direct masters archive <ids> — the closest thing to "delete" Мастер кампаний has.
• Live recon (documented in the issue #633 comment) confirmed via claude-in-chrome against a real account that Yandex's UI has no separate delete action for Мастер кампаний — neither the campaigns grid's row menu (Перейти/Редактировать/Статистика/Запустить-Остановить/Архивировать) nor the overview page's own "⋮" menu (Клонировать/Архивировать) has a "Удалить" item.
• archive_master clicks the overview page's "⋮" menu then the "Архивировать" item, using confirmed-live data-testid selectors (CampaignHeader.MenuTrigger / CampaignHeader.Menu.archive) rather than text-matched candidates like suspend/resume use — these were read directly off the live DOM, not guessed.
• Verifies success by re-reading the campaigns grid (fetch_masters_list) and confirming Status == "ARCHIVED", rather than trusting the click alone — mirrors the suspend/resume "click + verify" convention from direct masters suspend/resume — остановка и возобновление Мастера кампаний #630.
• Idempotent (already-archived campaign → warning, no click).
• Irreversible from this CLI — there is no masters unarchive. Classified DANGEROUS in smoke_matrix.py, same category as suspend/resume (no API ⇒ no --sandbox isolation).
• README (EN+RU) and CHANGELOG updated.

Closes #633

Test plan

• pytest -q — 2672 passed, 0 failed (62 pre-existing cassette-fixture errors unrelated to this change, confirmed present on main too)
• pytest tests/test_masters.py -n0 — 101 passed (new TestArchiveMaster/TestMastersArchiveCommand classes: click+verify, idempotency, not-found, menu-trigger-missing, archive-item-missing, status-never-changes)
• black --check / flake8 clean on all changed files
• Live browser recon only (read-only menu inspection via claude-in-chrome) — no live mutation was exercised; masters archive itself is untested against a real account (no disposable test campaign yet, see direct masters add — создание Мастера кампаний #632 dependency noted in the original issue)

[axisrow]

🔍 Local review (cycle 1)

Reviewed locally (/review + Codex companion), no bots pinged.

Verdict	Reviewer	Finding	Location
FIX	codex	Bulk archive discards successful (irreversible) results after a later ID fails — silent partial mutation with no audit trail	direct_cli/commands/masters.py:593
SKIP	claude	Verify loop re-navigates the whole campaigns grid on every 250ms poll instead of a lightweight status re-read	direct_cli/browser/masters.py:591-597

FIX applied in a11d4ee: _archive_all now archives every ID in a loop, catching BrowserSessionError/PlaywrightError per ID and recording either the archived row or the error, then reports every outcome (not just the last error) before raising if any ID failed. New regression test test_archive_reports_earlier_successes_when_a_later_id_fails confirms all 4 IDs are attempted and the earlier successes remain visible in the output even when a later ID errors.

SKIP rationale: confirmed this is a documented architectural constraint, not a bug — there is no confirmed status-text marker for "archived" on the overview page (unlike suspend/resume's "Кампания остановлена"/"активна"), so fetch_masters_list (the grid API) is the only source of truth for verification, same as the initial post-click check. The error message already warns to verify manually if the budget is exceeded.

[axisrow]

📋 Review summary — all cycles

Cycle	Reviewer	Finding	Verdict	Resolution
1	codex	Bulk archive discards successful (irreversible) results after a later ID fails — silent partial mutation with no audit trail	FIX	Fixed in a11d4ee — per-ID try/except loop reports every outcome, exits non-zero only after reporting all results
1	claude (/review)	Verify loop re-navigates the whole campaigns grid on every 250ms poll instead of a lightweight status re-read	SKIP	Documented architectural constraint — no confirmed status-text marker for "archived" on the overview page, so the grid API is the only source of truth
2	codex	(none — approve)	—	Re-verified the round-1 fix is correct; no new findings
2	claude (/review)	(none)	—	No new issues found on re-review

Totals: 1 FIX (resolved), 1 SKIP (architectural), 0 UNVERIFIED.

Local review cycle complete (2 rounds: /review + Codex companion, no bots pinged). Full test suite green (2673 passed, 0 failed; 62 pre-existing cassette-fixture errors unrelated to this PR, confirmed present on main), black/flake8 clean. Merge is yours to trigger — local mode does not auto-merge.