chore(master): release 2.62.0

[github-actions]

🤖 I have created a release beep boop

2.62.0 (2026-01-27)

Features

• add AES-256-GCM encryption at rest for export files (4f67269)
• add configurable batch sizes for Gmail/Outlook exports (a4d178c)
• add export beta notice and status indicator in UI (271bd18)
• add export reliability improvements and resume capability (9f78644)
• add export UI to admin account page (cf3ce49)
• add global concurrent export limit and performance optimizations (20a1272)
• add include attachments option to export UI (2b8d2c6)
• add parallel message fetching for Gmail/Outlook export (12de963)
• display export expiration date in UI (5e1e633)

Bug Fixes

• accept base64-encoded nonces for backward compatibility (2c46822)
• downgrade transient connection/timeout error logs to warn level (9064529)
• handle non-iterable messageInfo.attachments in mailbox sync (3187571)
• handle notificationBaseUrl without trailing slash in prepareUrl (1048818)
• handle uncaught EPIPE in ResponseStream for SSE endpoints (ca7af4a)
• harden OAuth token request body serialization and error handling (296c4e9)
• improve packUid robustness with fallback and validation (4b4253e)
• improve submit resilience during worker restarts and add batch endpoint (f559c38)
• preserve threadId for large Gmail threaded replies via multipart upload (b04c2ca)
• prevent ArrayBuffer detachment and IMAP null reference errors (3b97372)
• prevent concurrent export race condition with atomic Redis operation (dbc14f6)
• prevent sync state corruption from invalid uidNext values (533f026)
• prevent sync state corruption from invalid uidValidity values (976fdb7)
• prevent UTF-8 data corruption in OAuth request Buffer handling (14361fd)
• reject invalid nonce format instead of silently regenerating (422ea5c)
• remove BullMQ job when marking interrupted exports as failed (ad587a7)
• resolve 11 bugs in export functionality (f5d2621)
• resolve Gmail label IDs to human-readable names (02c306f)
• restore retry for empty Buffer payloads and fix large threaded Gmail replies (107c164)
• send Buffer for Outlook sendMail base64 payload to avoid JSON quoting (e89a924)
• update test expectations for email-text-tools 2.3.5+ behavior (1e28abf)
• use consistent index source in batch submit success and failure paths (3a73704)
• validate nonce format before using data.n from cached URLs (d825303)

Performance Improvements

• use MS Graph batch API for Outlook message export (f031f77)

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