### Context
We're looking at implementing plan pricing. While doing so, we
encountered a problem with Stripe.
**Problem:** when we run a stripe operation (purchase), the product info
is encoded as part of the stripe metadata request. Stripe encodes
metadata as key-value pairs, and the [value has a limit of 500
chars](https://docs.stripe.com/metadata#data). We do this because once
we run the stripe operation, stripe fires a webhook event which is
caught by our stripe webhook handler syncStripeSubscriptions. This gets
the stripe metadata info from the event and then updates our db in
prisma.
### Summary of Changes
We add a `ProductVersion` table and only pass the `productVersionId` via
stripe metadata instead of the whole product json. This
`productVersionId` is created by hashing the `productJson`. Since the
same product may be ordered differently without being intrinsically
different, we add a helper function for ensuring a canonical order to
the json. We also pass tenancy id and product id to the table.
Since there are existing subscriptions which used to pass the
productJson via metadata, we ensure backwards compatibility.
DB migration compat / Back-compat — Current branch migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
DB migration compat / Forward-compat — Current branch code with ${{ needs.check-migrations-changed.outputs.base_branch }} branch migrations (push) Has been cancelled
<!--
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<!-- CURSOR_SUMMARY -->
---
> [!NOTE]
> **High Risk**
> Touches authentication and OAuth token/authorize flows and changes how
client requests are validated, so regressions could cause widespread
login/client-access failures. Also includes a data migration that alters
effective security posture for existing projects.
>
> **Overview**
> Adds a **project-level toggle**
(`project.requirePublishableClientKey`) to control whether client
requests/OAuth flows must include a publishable client key, including a
DB migration that backfills existing projects to require it.
>
> Backend auth now treats the publishable client key as *optional when
allowed*, introducing a public sentinel (`__stack_public_client__`) and
returning a new specific error
(`PUBLISHABLE_CLIENT_KEY_REQUIRED_FOR_PROJECT`) across smart request
auth + OAuth `authorize`/`callback`/`token` endpoints.
>
> Dashboard and SDKs update key generation/display and request
construction to handle missing publishable keys, expose an advanced
toggle on the Project Keys page, and extend internal config overrides to
support a new `project` level; E2E/tests and schema fuzzing are expanded
accordingly, and CI adds a forward-compat migration check job when
back-compat fails.
>
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
5d06c08613. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Project-level config to require publishable client keys; migration
applied to existing projects.
* **Improvements**
* Auth flows now support optional publishable client keys with explicit
validation and a sentinel for keyless OAuth.
* Dashboard/UI and SDKs handle publishable keys as optional and
conditionally show/generate them.
* Admin/client APIs extended to manage project-level overrides.
* **Bug Fixes**
* Key validation behavior aligned with project config.
* **Tests**
* Expanded E2E and unit tests covering optional/required publishable-key
scenarios.
* **Documentation**
* Spec and knowledge docs updated to describe the sentinel and config
behavior.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
DB migrations are backwards-compatible / Test migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
https://www.loom.com/share/09a89533039d4bd4814332ec0728a30f
<!--
Make sure you've read the CONTRIBUTING.md guidelines:
https://github.com/stack-auth/stack-auth/blob/dev/CONTRIBUTING.md
-->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added batch analytics event submission API endpoint
* Enhanced session replay timeline with visual markers for page views
and click events
* Display click event counts on replay list items
* Implemented client-side event tracking for page views and clicks
* **Bug Fixes**
* Session replay now properly errors when analytics feature is disabled
* **Tests**
* Added end-to-end tests for analytics events batch API with validation
and querying
* Updated session replay test expectations for analytics error handling
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!--
Make sure you've read the CONTRIBUTING.md guidelines:
https://github.com/stack-auth/stack-auth/blob/dev/CONTRIBUTING.md
-->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Subscription IDs are now included in product listings and UI data for
clearer subscription tracking.
* Cancellation can be performed by subscription ID as well as by
product; client and template APIs support passing a subscription
identifier.
* **Tests**
* End-to-end tests added/updated to cover canceling subscriptions via
subscription ID and updated listing snapshots.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!--
Make sure you've read the CONTRIBUTING.md guidelines:
https://github.com/stack-auth/stack-auth/blob/dev/CONTRIBUTING.md
-->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Browser-side event tracker with batching, navigation & click capture
and background/keepalive delivery
* Server endpoint to accept batched analytics events and associate them
with session replay segments
* Client APIs to send analytics batches and integrate with session
replay
* **Bug Fixes / UX**
* Pausing replay now uses the UI-facing playback time for more accurate
pause positions
* Replay endpoint now returns a clear analytics-disabled error
(ANALYTICS_NOT_ENABLED) when analytics is off
* **Tests**
* End-to-end tests covering batch ingestion, validation, and replay
timing behavior
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!--
Make sure you've read the CONTRIBUTING.md guidelines:
https://github.com/stack-auth/stack-auth/blob/dev/CONTRIBUTING.md
-->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added new session replay analytics columns to ClickHouse for enhanced
tracking and reporting
* **Refactor**
* Renamed session recording segment identifier across APIs and data
models from `tab_id` to `session_replay_segment_id`
* Updated internal data structures and type definitions to align with
new naming convention
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
https://www.loom.com/share/3b7c9288149e4f878693281778c9d7e0
## Todos (future PRs)
- Fix pre-login recording
- Better session search (filters, cmd-k, etc)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Analytics → Replays: session recording & multi-tab replay with
timeline, speed, seek, and playback settings; dashboard UI for listing
and viewing replays.
* **Admin APIs**
* Admin endpoints to list recordings, list chunks, fetch chunk events,
and retrieve all events (paginated).
* **Client**
* Client-side rrweb recording with batching, deduplication, upload API
and a send-batch client method.
* **Configuration**
* New STACK_S3_PRIVATE_BUCKET for private session storage.
* **Tests**
* Extensive unit and end-to-end tests for replay logic, streams,
playback, and APIs.
* **Chores**
* Removed an E2E API test GitHub Actions workflow.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
### Context
Some of our users' emails were getting stuck in sending. The long delays
in processing the retries caused a vercel function timeout.
### Summary of Changes
We refactor the low level email sending functions to remove the retry
logic there. We kick it up to the email queue step. Additionally, we
flag emails to be retried when they encounter issues but leave it for a
future iteration to actually perform the retry. We perform an
exponential backoff with a random component to decide when they have to
be retried. We also make some small adjustments to the queuing function
to not queue skipped emails.
When an email fails to send during the sending function, we check to see
if it is a retryable error or not. Some errors are transient and trying
again may succeed while others indicate deeper issues. If it is
retryable, and the max number of retry attempts hasn't been reached, we
set `nextSendRetryAt` to a time determined by an exponential backoff
calculation function. When the queuing function looks for emails to
queue, it doesn't just pick up the `SCHEDULED`. emails whose
`scheduledAt` time <= `NOW()`, but also those emails whose
`nextSendRetryAt` time <= `NOW()`. What this means in practice is that
one iteration of the `email-queue-step` will mark emails as retryable
while another iteration will perform the retry. This should be cleaner
and prevent long delays in the `email-queue-step` process due to
retries. This also makes it easier to scale up the number of retries if
need be.
DB migrations are backwards-compatible / Test migrations with ${{ needs.check-migrations-changed.outputs.base_branch }} branch code (push) Has been cancelled
<!--
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-->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Real-time AI search with project-scoped analytics and dynamic query
execution; streaming AI responses replace the placeholder flow.
* External DB sync adds ClickHouse support: users sync, sync metadata
tracking, tenancy-aware status, and per-mapping throttling.
* AI assistant UI shows expandable tool-invocation results and streams
via the real AI pipeline.
* **Chores**
* Dashboard dependencies and workspace exclusions updated; development
OpenAI env var added; editor config flag toggled.
* **Tests**
* E2E coverage extended to validate ClickHouse user sync and analytics
queries.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: aadesh18 <110230993+aadesh18@users.noreply.github.com>
Co-authored-by: Konsti Wohlwend <n2d4xc@gmail.com>
<!--
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https://github.com/stack-auth/stack-auth/blob/dev/CONTRIBUTING.md
-->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Bug Fixes**
* Improved pricing accuracy by implementing proper rounding in unit
price calculations during checkout. This ensures correct cent-level
precision in purchase computations, preventing potential rounding errors
in transaction totals.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
