docs(masters): confirm edit-page region widget renders for LAUNCHED campaigns (#776)

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Summary

Settles issue #776's unproven assumption: does WIZARD_EDIT_URL render the "Регион показов" widget (RegionsTreeTagGroup.tags-wrapper) for a genuinely LAUNCHED (non-DRAFT) Мастер кампаний campaign, not just on the create page?

Verification (live, read-only, no --launch)

Once goal support unblocked masters add (#777/#779), the obvious next step looked like creating a fresh test campaign with --launch — but that publishes real live ads with real budget spend and no rollback. Instead: the rendering fact in question doesn't depend on how a campaign became ACTIVE, so it was checked against an existing production campaign already running before this issue:

$ masters get 713234191 --format json
{
  "CampaignId": 713234191,
  "Status": "ACTIVE",
  "LandingUrl": "https://lp.ksamata.ru/detox_ya",
  "Stats": {"impressions": "11 271", "clicks": "388", "cost": "457,22 ₽"}
}

Confirmed non-DRAFT with real impressions/clicks/spend. Reloading its WIZARD_EDIT_URL and inspecting the DOM:

document.querySelector('[data-testid="RegionsTreeTagGroup.tags-wrapper"]')
// found, offsetParent !== null (visible), 36 region tags rendered

Result: the edit page does render the region widget for a genuinely launched campaign. _verify_created's existing reload-and-reread approach (direct_cli/browser/masters.py) was already correct — no code change to the verification logic itself.

Changes

Only _verify_created's docstring: replaced the "not field-proven" / risk-flagged wording with the confirmed live-verification note (campaign ID, method, result), per the issue's own resolution steps (#2: "capture ... replace the softened docstring wording with a real live-verification note").

No new fixture was captured — the check used the DOM directly (data-testid presence + visibility + tag count) rather than a saved HTML snapshot, since the goal was answering a yes/no rendering question, not adding new fixture-based test coverage.

Tests

• pytest -k masters — 678 passed, 9 subtests passed (offline, unaffected by this docs-only change)
• black --check / flake8 clean

Closes #776

🤖 Generated with Claude Code

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📋 Review summary — all cycles

Reviewed locally (/code-review ×4 + Codex companion ×3, no bots pinged). Both reviewers were unanimous.

Cycle	Reviewer	Finding	Verdict	Resolution
1	codex	Docstring-only change; live-verification claim internally consistent with unchanged code below it	SKIP	No action needed — approve, no critical issues
1	claude (/code-review)	Docstring-only change; live-verification claim internally consistent with unchanged code below it	SKIP	No action needed — 0 findings across 4 independent runs

Totals: 0 FIX, 0 SKIP-actionable, 0 UNVERIFIED. PR is a pure docstring change confirming issue #776's design item; no executable code modified.