feat(achievements): add 67 and 666 reading streak achievements

[idoshamun]

What

Adds two new reading_streak milestone achievements:

Streak	Name	Points
67	What time is it?	35
666	Devil is impressed	50

Full reading-streak set is now 10, 50, 67, 365, 512, 666, 1024.

Changes

• Migration AddMoreReadingStreakAchievements — inserts the two achievement rows (badges already uploaded to Cloudinary achievements/ folder).
• Backfill bin/syncReadingStreakAchievements.ts — one-off script to retroactively unlock the new milestones for users whose maxStreak already qualifies. Idempotent (reuses updateUserAchievementProgress), scoped to the two new achievements and maxStreak >= 67.

Post-deploy

Run the backfill after this migration deploys (the rows must exist first):
npx ts-node bin/syncReadingStreakAchievements.ts

Notes

No new unit test: the CDC worker already covers the generic reading-streak unlock path; 67/666 exercise the identical evaluateAbsoluteValueAchievement code path. Migration verified by applying locally; existing streak tests pass.

[pulumi]

🍹 The Update (preview) for dailydotdev/api/prod (at bc11d29) was successful.

Resource Changes

    Name                                                       Type                           Operation
~   vpc-native-rotate-weekly-quests-cron                       kubernetes:batch/v1:CronJob    update
~   vpc-native-clean-zombie-images-cron                        kubernetes:batch/v1:CronJob    update
~   vpc-native-clean-expired-better-auth-sessions-cron         kubernetes:batch/v1:CronJob    update
~   vpc-native-clean-zombie-user-companies-cron                kubernetes:batch/v1:CronJob    update
~   vpc-native-materialize-monthly-best-post-archives-cron     kubernetes:batch/v1:CronJob    update
~   vpc-native-rotate-daily-quests-cron                        kubernetes:batch/v1:CronJob    update
~   vpc-native-clean-gifted-plus-cron                          kubernetes:batch/v1:CronJob    update
~   vpc-native-personalized-digest-deployment                  kubernetes:apps/v1:Deployment  update
~   vpc-native-personalized-digest-cron                        kubernetes:batch/v1:CronJob    update
~   vpc-native-deployment                                      kubernetes:apps/v1:Deployment  update
~   vpc-native-hourly-notification-cron                        kubernetes:batch/v1:CronJob    update
~   vpc-native-subscription-anniversary-achievements-cron      kubernetes:batch/v1:CronJob    update
~   vpc-native-generic-referral-reminder-cron                  kubernetes:batch/v1:CronJob    update
~   vpc-native-validate-active-users-cron                      kubernetes:batch/v1:CronJob    update
~   vpc-native-worker-job-deployment                           kubernetes:apps/v1:Deployment  update
~   vpc-native-update-views-cron                               kubernetes:batch/v1:CronJob    update
+   vpc-native-api-clickhouse-migration-3974b5fe               kubernetes:batch/v1:Job        create
~   vpc-native-update-tag-materialized-views-cron              kubernetes:batch/v1:CronJob    update
~   vpc-native-calculate-top-readers-cron                      kubernetes:batch/v1:CronJob    update
~   vpc-native-post-lifecycle-state-clickhouse-cron            kubernetes:batch/v1:CronJob    update
~   vpc-native-materialize-yearly-best-post-archives-cron      kubernetes:batch/v1:CronJob    update
~   vpc-native-post-analytics-achievements-cron                kubernetes:batch/v1:CronJob    update
~   vpc-native-clean-old-notifications-cron                    kubernetes:batch/v1:CronJob    update
~   vpc-native-update-achievement-rarity-cron                  kubernetes:batch/v1:CronJob    update
~   vpc-native-bg-deployment                                   kubernetes:apps/v1:Deployment  update
~   vpc-native-update-tags-str-cron                            kubernetes:batch/v1:CronJob    update
~   vpc-native-clean-stale-user-transactions-cron              kubernetes:batch/v1:CronJob    update
~   vpc-native-user-posts-analytics-refresh-cron               kubernetes:batch/v1:CronJob    update
~   vpc-native-clean-zombie-opportunities-cron                 kubernetes:batch/v1:CronJob    update
-   vpc-native-api-db-migration-11cd347b                       kubernetes:batch/v1:Job        delete
~   vpc-native-update-trending-cron                            kubernetes:batch/v1:CronJob    update
~   vpc-native-user-profile-analytics-history-clickhouse-cron  kubernetes:batch/v1:CronJob    update
~   vpc-native-channel-digests-cron                            kubernetes:batch/v1:CronJob    update
~   vpc-native-update-source-public-threshold-cron             kubernetes:batch/v1:CronJob    update
~   vpc-native-sync-subscription-with-cio-cron                 kubernetes:batch/v1:CronJob    update
~   vpc-native-post-analytics-clickhouse-cron                  kubernetes:batch/v1:CronJob    update
~   vpc-native-clean-channel-highlights-cron                   kubernetes:batch/v1:CronJob    update
-   vpc-native-api-clickhouse-migration-11cd347b               kubernetes:batch/v1:Job        delete
~   vpc-native-daily-digest-cron                               kubernetes:batch/v1:CronJob    update
~   vpc-native-private-deployment                              kubernetes:apps/v1:Deployment  update
~   vpc-native-squad-posts-analytics-refresh-cron              kubernetes:batch/v1:CronJob    update
... and 15 other changes