build(deps): bump node-cron from 3.0.3 to 4.5.0 in /backend

[dependabot]

Bumps node-cron from 3.0.3 to 4.5.0.

Release notes

Sourced from node-cron's releases.

v4.5.0

Added

• lastRun() introspection getter on ScheduledTask: returns { date, result } after a successful execution, { date, error } after a failed one, or null before the first run.
• Extended day-of-week tokens: <weekday>#<nth> (nth weekday of the month, e.g. 1#1 for the first Monday) and <weekday>L (last weekday of the month, e.g. 5L for the last Friday).

Performance

• Cache Intl.DateTimeFormat instances per timezone instead of rebuilding on every call.
• Parse the cron expression once per TimeMatcher instead of re-parsing in MatcherWalker.
• Compute the GMT offset lazily (only when formatting ISO strings, not during the next-run search).
• Replace crypto.randomBytes with crypto.randomUUID for internal ID generation.
• Skip setTimeout jitter wrapper when maxRandomDelay is zero.
• Bundle dist into flat files instead of preserving the module tree (reduces import time).

Fixed

• Flaky should schedule a task test: poll for the first execution instead of asserting an exact count after a fixed sleep.

Changed

• Renamed internal functions interprete to interpret and appendSeccondExpression to appendSecondExpression.
• Rewritten README and package metadata to surface scheduling capabilities (overlap prevention, distributed coordination, background tasks).

v4.4.1

Patch release.

Changed

• Renamed the distributedTtl task option to distributedLease (same meaning: the safety lease, in ms, for lease-based run coordinators). distributedTtl was the only abbreviation in the options API and shipped just days ago in 4.4.0, so it's removed without an alias. If you adopted distributedTtl from 4.4.0, rename it to distributedLease. (#551)

Full Changelog: node-cron/node-cron@v4.4.0...v4.4.1

v4.4.0

Features

• Distributed run coordination — opt-in distributed: true runs a task on a single instance per fire across a fleet (the #477 use case). Ships a built-in NODE_CRON_RUN env-var default (one designated runner, no dependencies) and a pluggable RunCoordinator (via setRunCoordinator, or the per-task runCoordinator option) for high-availability, per-fire coordination (e.g. a Redis lock). Adds the distributedTtl option and an execution:skipped event carrying a reason ('not-elected' | 'coordinator-error'). Works for inline and background tasks. (#549, closes #477)
• Task introspection on ScheduledTask: getNextRuns(n) (preview the next N run times), match(date), msToNext(), isBusy(), runsLeft() and getPattern(). (#547)
• cron.parse(expression) and cron.validateDetailed(expression) — decompose an expression into its fields, or get every field-level problem (without throwing) for tooling and richer error messages. (#548)

Fixes

• getNextMatch no longer scans every time of day on a day that matches the day-of-month but not the weekday. A dense expression constrained by both (e.g. * * * 15 * 1) could take minutes to resolve; it is now instant. (#542)

Internal

• Cleanups with no public API change: fixed the milisecond → millisecond spelling and the convertion/ → conversion/ directory name. (#543)

Docs

• New Distributed Coordination guide, plus pages for task introspection and parse/validateDetailed, at nodecron.com.

Full Changelog: node-cron/node-cron@v4.3.0...v4.4.0

v4.3.0

Features

• L (last day of month) in the day-of-month field — e.g. 0 0 12 L * *, leap-year aware, and combinable with explicit days (15,L). (#396, closes #147 — thanks @​antonidasyang)
• missedExecutionTolerance option (ms, default 1000): a heartbeat that wakes a little late still runs its slot instead of being reported as missed. Always capped to the gap to the next slot. (#534, closes #485)
• startTimeout option for background tasks (ms, default 5000). (#535)

... (truncated)

Changelog

Sourced from node-cron's changelog.

[4.5.0] - 2026-06-21

Added

• lastRun() introspection getter on ScheduledTask: returns { date, result } after a successful execution, { date, error } after a failed one, or null before the first run. (#557)
• Extended day-of-week tokens: <weekday>#<nth> (nth weekday of the month, e.g. 1#1 for the first Monday) and <weekday>L (last weekday of the month, e.g. 5L for the last Friday). (#560)

Performance

• Cache Intl.DateTimeFormat instances per timezone instead of rebuilding on every call. (#561)
• Parse the cron expression once per TimeMatcher instead of re-parsing in MatcherWalker. (#562)
• Compute the GMT offset lazily (only when formatting ISO strings, not during the next-run search). (#563)
• Replace crypto.randomBytes with crypto.randomUUID for internal ID generation. (#564)
• Skip setTimeout jitter wrapper when maxRandomDelay is zero. (#565)
• Bundle dist into flat files instead of preserving the module tree (reduces import time). (#566)

Fixed

• Flaky should schedule a task test: poll for the first execution instead of asserting an exact count after a fixed sleep.

Changed

• Renamed internal functions interprete to interpret and appendSeccondExpression to appendSecondExpression. (#567)
• Rewritten README and package metadata to surface scheduling capabilities (overlap prevention, distributed coordination, background tasks). (#568)

[4.4.1] - 2026-06-18

Changed

• Renamed the distributedTtl option to distributedLease (same meaning: the safety lease, in ms, for lease-based coordinators). The old name was the only abbreviation in the options API; the new one groups with distributed. distributedTtl was introduced in 4.4.0 and is removed without an alias.

[4.4.0] - 2026-06-17

Added

• Task introspection on ScheduledTask: getNextRuns(n) (preview the next N run times), match(date), msToNext(), isBusy(), runsLeft() and getPattern(). (#547)
• cron.parse(expression) and cron.validateDetailed(expression): decompose an expression into its fields, or get every field-level problem (without throwing) for tooling and richer error messages. (#548)

... (truncated)

Commits

• cd9a5a7 chore(release): 4.5.0 (#569)
• fbdd883 Rewrite README to surface scheduling capabilities (#568)
• c80a396 perf(build): bundle dist into flat files instead of preserving modules (#566)
• b71b9b1 Fix typos in internal function names (#567)
• 7c5015c perf(id): drop crypto.randomBytes from internal id generation (#564)
• dd0a2a9 perf(pattern): parse cron expression once per TimeMatcher (#562)
• cf69f32 perf(time): cache Intl.DateTimeFormat instances per timezone (#561)
• dad56e1 perf(runner): run inline when no random delay is configured (#565)
• a309d5f perf(time): compute the GMT offset lazily (#563)
• c2db9d1 feat: support extended day-of-week tokens (# nth weekday and L last weekday) ...
• Additional commits viewable in compare view

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[Penielka]

Closing as part of repository cleanup. All PRs being closed to make room for a fresh issue tracking strategy.

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