Phase 24 Plan 06: Route 53 Scheduler + Admin Sync Tile Summary

Wired the already-built Route53SyncService (plan 24-02) into the two existing operator surfaces every other integration uses: the node-cron sync scheduler and the /admin/sync tile grid.

What Was Built

Task 1 — Scheduler wiring (lib/services/sync-scheduler.ts):

Appended 'route53-incremental' | 'route53-full' to the sync_type union.
Appended two defaultSchedules entries, both seeded is_enabled: false:
- route53-incremental — */15 * * * * (every 15 minutes)
- route53-full — 0 1 * * * (daily at 1:00 AM)
Added two dispatch branches in executeScheduledSync(), each dynamically importing isRoute53Configured from route53-factory.ts and, if configured, dynamically importing getRoute53SyncService from route53-sync-service.ts to call incrementalSync('scheduled') / fullSync('scheduled'). Neither branch consults the admin disable toggle (integration_settings table) — per D-10, Route 53 does not join PAX8 as a scheduler-blocking exception. An inline comment above the first branch records this deliberately, referencing the pax8-daily branch it sits below.

Task 2 — Admin sync tile (app/admin/sync/page.tsx, public/logos/route53.svg):

Created public/logos/route53.svg — a hand-authored globe/DNS glyph (circle + meridian ellipse + latitude lines + four node dots) in AWS orange (#FF9900), viewBox="0 0 32 32", primitive shapes only. No <script>, no external href/xlink:href, no embedded raster data.
Appended one entry to INTEGRATIONS after pax8: id: 'route53', category: 'DNS', product: 'AWS Route 53', href: '/admin/sync/route53', logo: '/logos/route53.svg', color: 'orange' (reusing the key already used by datto-rmm, consistent with the array's existing color-reuse pattern). The /admin/sync/route53 link target doesn't resolve yet — plan 24-07 (Wave 4) builds that detail page.

Cron Expressions Chosen

Schedule ID	Cron Expression	Cadence
`route53-incremental`	`/15 * * *`	Every 15 minutes
`route53-full`	`0 1 * * *`	Daily at 1:00 AM

The plan's suggested 0 4 * * * slot for the full sync was already occupied by the existing contract-services schedule (also 0 4 * * *) — not mentioned in the plan's own collision list (which only called out 2 AM and 3 AM). Enumerated every cron_expression in the live defaultSchedules array (17 entries after this change) before picking 0 1 * * *, which was unused.

Deviations from Plan

Auto-fixed Issues

1. [Rule 1 - Bug] Plan's suggested 4:00 AM slot for route53-full collides with contract-services

Found during: Task 1, cron collision enumeration
Issue: Plan text said "The 0 4 * * * slot avoids the known collisions at 2:00 AM ... and 3:00 AM," but contract-services already occupies 0 4 * * * — the plan's own collision list was incomplete. The plan explicitly instructed enumerating the array and picking the next free hour if 4 AM was occupied.
Fix: Enumerated all 16 existing cron_expression values, confirmed hour 1 was free, used 0 1 * * *.
Files modified: lib/services/sync-scheduler.ts
Commit: fee1f99

2. [Rule 1 - Bug] Combined dispatch branch triggered a false positive against the plan's own D-10 verification grep

Found during: Task 1, running the plan's automated verify command
Issue: First implementation combined route53-incremental/route53-full into one else if (matching the codebase's existing appgate-sessions/appgate-daily combined-branch precedent), with the D-10 explanatory comment spelling out integration_settings.disabled. The plan's own verify command greps 12 lines after every match of config.sync_type === 'route53 for the literal string integration_settings — the second inline config.sync_type === 'route53-incremental' check inside the combined branch put the qbo branch's real integration_settings query line just inside that 12-line window on one variant, and separately the comment's own literal use of the word tripped the same grep against itself.
Fix: Split into two independent else if branches (one per sync_type, each with its own isRoute53Configured() gate) and reworded the D-10 comment to say "the admin disable toggle" instead of the literal table name.
Files modified: lib/services/sync-scheduler.ts
Commit: fee1f99

Verification

npx tsc --noEmit --pretty — exits 0
npm test — 534/536 pass; 2 pre-existing failures in lib/services/analyzer/itglue-search.test.ts, unrelated to this plan's files, already logged in deferred-items.md from plans 24-01/24-03 (confirmed again unrelated: git status shows zero changes to that path)
npm run build — succeeds, scheduler imports cleanly at build/startup
grep -c "route53-incremental" lib/services/sync-scheduler.ts → 5 (≥3 required)
grep -c "route53-full" lib/services/sync-scheduler.ts → 5 (≥3 required)
grep -A12 "config.sync_type === 'route53" lib/services/sync-scheduler.ts | grep -c integration_settings → 0
grep -c "^import.*route53" lib/services/sync-scheduler.ts → 0 (dynamic import only)
public/logos/route53.svg exists, <svg root with viewBox, 0 occurrences of script/xlink:href
app/admin/sync/page.tsx — git diff shows only the one added array line; IntegrationCard, COLOR_MAP, and JSX render untouched

Known Stubs

None — this plan wires existing services into existing surfaces; no new stub data paths introduced. The tile's href points to /admin/sync/route53, which does not resolve until plan 24-07 (Wave 4) ships — this is expected per the plan's own note and not a stub in the sense of empty/placeholder UI data.

Threat Flags

None — both dispatch branches gate on isRoute53Configured() (existing factory from plan 24-01) and the SVG asset was authored offline per the plan's threat-model mitigation (T-24-23), matching the phase's <threat_model> register with no new unmodeled surface.

Self-Check: PASSED

FOUND: public/logos/route53.svg
FOUND: lib/services/sync-scheduler.ts
FOUND: app/admin/sync/page.tsx
FOUND: .planning/phases/24-aws-route-53-dns-sync-track-changes-crud-operations-full-aud/24-06-SUMMARY.md
FOUND commit: fee1f99 (feat(24-06): wire route53-incremental/route53-full into sync scheduler)
FOUND commit: 6627cee (feat(24-06): add Route 53 tile to /admin/sync integration list)
FOUND commit: 8fcf587 (docs(24-06): create plan summary)

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