Pamela Chia 0bed80b340 chore(telemetry): clean up frontend event catalog (#45964)
## Summary
Resolves 13 findings (2 HIGH, 5 MEDIUM, 6 LOW) from the frontend
telemetry audit: 1 action-string collision, 1 camelCase experiment name,
9 dead events removed, 4 missing org groups attached, 1 ambiguous
property renamed, 1 raw-string property narrowed, plus consolidations
and a structural tightening on TABLE_EVENT_ACTIONS.

## Changes
### HIGH
- Rename `EventPageCtaClickedEvent.action` to
`www_event_page_cta_clicked` so it no longer collides with the pricing
CTA event (which had a different schema sharing the same action string)
- Snake_case the header-upgrade experiment exposure name
(`headerUpgradeCta_experiment_exposed` →
`header_upgrade_cta_experiment_exposed`); PostHog flag key and
`?source=` URL param unchanged

### MEDIUM
- Remove 4 dead `ProjectCreation*Step*` events (referenced a v2 route
that doesn't exist; 0 emissions)
- Remove 4 dead experiment exposure events:
`ProjectCreationRlsOptionExperimentExposed`, `HomeNewExperimentExposed`,
`TableCreateGeneratePoliciesExperimentExposed`,
`TableCreateGeneratePoliciesExperimentConverted` (0 emissions)
- Attach org group to `dpa_request_button_clicked` (0% had `$group_0`
per Hex)
- Delete `RegisterStateOfStartups2025NewsletterClicked` (interface
naming outlier, 0 emissions, page renamed to 2026)
- Rename `AssistantSuggestionRunQueryClickedEvent.category` to
`mutationType` with tightened literal union (`'functions' |
'rls-policies' | 'unknown'`)
- Attach org group to `project_creation_default_privileges_exposed` on
Vercel surface via explicit `groupOverrides` (auto-injection misses
because `useSelectedOrganizationQuery` is undefined on that page)

### LOW
- Consolidate `IndexAdvisorBannerEnableButtonClickedEvent` +
`IndexAdvisorDialogEnableButtonClickedEvent` into one event with
`origin: 'banner' | 'dialog'`
- Rename `ImportDataFileDroppedEvent` → `ImportDataFileAddedEvent` so
the interface name matches the action and the verb is on the approved
list
- Rename `LogDrainConfirmButtonSubmittedEvent` → `LogDrainRemovedEvent`
and action to `log_drain_removed` (fires on delete-confirm modal,
matches `CronJobRemovedEvent` pattern)
- Add `type` property to `CronJobRemovedEvent` (parsed from the job's
command), matching the create/update event shape
- Tighten `TABLE_EVENT_ACTIONS` values with `satisfies` against the
event union so renames in the union fail typecheck here too
- Attach org group to `www_pricing_plan_cta_clicked` at 5 emission sites
when an org is available in the page context
- Narrow `unified_logs_row_clicked.logType` from raw `string` to the
5-literal `LOG_TYPES` union (zod already validates server values)

### Bundled refactor
Migrated 5 emission sites from deprecated `useSendEventMutation` to
`useTrack` while their containing files were being edited: `DPA.tsx`,
`DisplayBlockRenderer.tsx`, `Grid.tsx` (2 events), `DeleteCronJob.tsx`.
Full sweep of the remaining ~79 files is a separate follow-up.

## Testing

Mostly just renaming of events

## Linear
- fixes GROWTH-798


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Refactor**
* Standardized telemetry to a unified tracking system for more
consistent analytics.
  * Simplified experiment exposure reporting for upgrade prompts.

* **New Features**
* More granular tracking for CSV import, cron job deletions, log drain
removals, DPA downloads/requests, and pricing CTAs.
  * Assistant now classifies mutation queries more precisely.

* **Bug Fixes**
* Improved default-privileges exposure logic on Vercel deployments
(skips when org missing).

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2026-05-18 18:21:58 +08:00

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