[nightly-telemetry] Upload Sentry debug symbols during release

[r3dbars]

Summary

• generate build/Transcripted.app.dSYM during beta/release builds
• upload release dSYMs during Sentry release registration with --no-sources
• document the release credential/symbolication contract and cover it in repo command tests

Evidence

• Latest released build 1.1.42 has a current-release fatal crash (APPLE-MACOS-S) where Sentry had runtime context but missing app frames/debug symbols.
• Recent fixes landed for the likely CoreML lifetime issue, but future current-release crashes would still be hard to diagnose without symbols.

Candidate score

• Winner: missing Sentry release dSYM upload, 88/100
• Runner-up: device-change rewarm failures, 69/100, mostly older releases
• Runner-up: quiet/degraded meeting capture UX, 62/100, current-release telemetry did not show unrecovered quiet-mic hits

Verification

• bash -n scripts/release/register-sentry-release.sh
• bash -n scripts/entrypoints/build-beta.sh
• TRANSCRIPTED_DISABLE_FILE_LOGGER=1 bash run-tests.sh (2251 passed)
• sentry-cli debug-files upload --no-upload --org r3dbars --project apple-macos --type dsym --no-sources build/Transcripted.app.dSYM
• thin packaging smoke with SKIP_NOTARIZATION=1 ... REGISTER_SENTRY_RELEASE=0 bash build-beta.sh nightly-smoke Codex

[r3dbars]

verdict: no-findings-but-human

findings: none from this pass.
actions: human signoff recommended because this is draft release/Sentry symbolication plumbing and changes the shipped packaging path.
head_sha: e7a4ce0
fix_commit: none
checks: gh pr view, gh pr diff, release/Sentry docs read, git diff --check origin/main...origin/codex/nightly-telemetry-sentry-dsyms, bash -n on PR versions of scripts/entrypoints/build-beta.sh and scripts/release/register-sentry-release.sh; GitHub checks reported none.

manual_merge_handoff:
head_sha: e7a4ce0
verdict: no-findings-but-human
blockers: draft PR plus release/Sentry symbol upload path needs human signoff
checks: gh metadata/diff, local docs/static review, diff check, bash syntax checks