fix(release): tolerate npm dist-tag propagation lag

[0xjcf]

Summary

• prefer online npm registry reads during post-publish dist-tag verification
• retry stale registry snapshots for a bounded 14-second convergence window
• distinguish dist-tag write failures from post-write verification lag
• recommend an online recheck before asking for a fresh OTP repair
• cover convergence, persistent mismatch, and recovery guidance deterministically

Why

The beta.9 packages published successfully, but the immediate npm view reads returned stale dist-tags. The wrapper treated that temporary registry propagation lag as a release failure and printed OTP repair commands even though no repair was ultimately needed.

Verification

• node --test scripts/release-beta.test.mjs (9/9)
• pnpm run test:scripts (31/31)
• pnpm release:beta --dry-run (inert publish, all tests and builds passed)
• fas validate-task (fast lane passed)
• fas verify --full (all seven lanes passed)
• pre-push pnpm test:full (641 package tests, 31 script tests, and all 9 example roots passed; Voice Workbench 272/272)

No changeset is included because this changes repository release tooling only; beta.9 package contents and published tags remain unchanged.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fas/beta-dist-tag-verification

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.16%. Comparing base (03f4e93) to head (acf8b5a).
⚠️ Report is 5 commits behind head on beta.

Additional details and impacted files

@@           Coverage Diff           @@
##             beta      #95   +/-   ##
=======================================
  Coverage   90.16%   90.16%           
=======================================
  Files          38       38           
  Lines        3181     3181           
  Branches      948      944    -4     
=======================================
  Hits         2868     2868           
  Misses        290      290           
  Partials       23       23           

Flag	Coverage Δ
unittests	90.16% <ø> (ø)

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