Retire unused activity file endpoints

[deancochran]

Summary

• retire unused legacy activity-file management endpoints with zero app/non-test references:
  • activityFiles.uploadActivityFile
  • activityFiles.analyzeActivityFile
  • activityFiles.getActivityFileStatus
  • activityFiles.listActivityFiles
  • activityFiles.deleteActivityFile
• retire unused profile helper endpoints:
  • profiles.list
  • profiles.getStats
  • profiles.updateZones
• retire unused utility endpoints:
  • routes.update
  • social.deleteComment
  • storage.deleteFile
• retire unused analytics/coaching endpoints:
  • analytics.predictPerformance
  • coaching.invite
  • coaching.respond
  • coaching.getCoach
• retire unused integration helper endpoints while preserving active OAuth/connect/disconnect/sync overview/sync-now flows:
  • integrations.refreshSetupData
  • integrations.refreshToken
  • integrations.cleanupExpiredStates
  • integrations.ical.addFeed
  • integrations.ical.listFeeds
  • integrations.ical.updateFeed
  • integrations.ical.removeFeed
  • integrations.wahoo.syncEvent
  • integrations.wahoo.unsyncEvent
  • integrations.wahoo.getEventSyncStatus
  • integrations.wahoo.testSync
• retire unused feed detail endpoint:
  • feed.getActivity
• retire unused activity-plan import endpoints:
  • activityPlans.importFromFitTemplate
  • activityPlans.importFromZwoTemplate
• retire unused event helper endpoints and router-local endpoint logic:
  • events.getWeekCount
  • events.linkCompletion
  • events.unlinkCompletion
  • events.reconcileHistoricalCompletions
  • events.listByWeek
  • events.getProviderSyncStatus
• retire unused training-plan helper endpoints and endpoint-only API application use-cases:
  • trainingPlans.exists
  • trainingPlans.getFeasibilityPreview
  • trainingPlans.createFromMinimalGoal
  • trainingPlans.simulateScheduleAdjustment
  • trainingPlans.getIntensityDistribution
  • trainingPlans.getIntensityTrends
  • trainingPlans.checkHardActivitySpacing
  • trainingPlans.getWeeklyTotals
  • trainingPlans.auditTemplateHealth
  • trainingPlans.removeAppliedSchedule
  • trainingPlans.shiftAppliedSchedule
  • trainingPlans.regenerateAppliedSchedule
  • trainingPlans.autoAddPeriodization
• preserve reusable pure/domain logic in @repo/core and remove only endpoint surfaces, router orchestration, endpoint-only API use-cases, obsolete tests/mocks, and dead DB/provider helper orchestration with no callers
• keep current active APIs intact: signed upload/download, import/process, streams, profile get/update/getZones, route create/list/detail/delete, comments add/list, avatar upload/download, coaching getRoster, analytics season-best curve, integration OAuth state/connect/disconnect/list/overview/syncNow, feed.getFeed, event list/create/update/delete/constraints/today, training plan creation-config, template apply/list/get, active plan, insight timeline/current status/curves/weekly summary
• final corrected endpoint-reference audit reports no remaining zero-reference procedure candidates

Verification

• pnpm --filter @repo/api check-types
• pnpm --filter @repo/api test -- activity-files
• pnpm --filter @repo/api test -- profiles
• pnpm --filter @repo/api test -- routes social storage
• pnpm --filter @repo/api test -- analytics coaching
• pnpm --filter @repo/api test -- integrations
• pnpm --filter @repo/api test -- feed
• pnpm --filter @repo/api test -- activity-plans
• pnpm --filter @repo/api test -- events
• pnpm --filter @repo/api test -- events training-plans
• pnpm --filter mobile check-types
• pnpm --filter mobile test -- plan-navigation training-plan-deeplink
• git diff --check
• pnpm --filter @repo/api lint (reported existing warning-only diagnostics; no errors/fixes required)
• pre-push hook passed: biome, typecheck, test, knip

Latest commits

• cc261a6 Retire unused event provider sync status endpoint
• 3b3066d Retire unused training plan helper endpoints
• 17c52bf Retire unused event helper endpoints
• 8589d28 Remove unused activity plan context import
• 940b6bd Remove dead activity plan import helper
• 1877da1 Retire unused activity plan import endpoints
• 2b106fe Retire unused feed activity endpoint
• c48f21d Retire unused integration endpoints
• fdd66ea Retire unused analytics and coaching endpoints