This pull request fixes the model annotation tooling due to previous
incomplete migration from `annotate` to `annotaterb` gem (#12600). It
also improves the handling of serialized values in the
`InstallationConfig` model by ensuring a default value is set,
simplifying the code, and removing a workaround for YAML
deserialization.
**Annotation tooling updates:**
* Added `.annotaterb.yml` to configure the `annotate_rb` gem with
project-specific options, centralizing annotation settings.
* Replaced the custom `auto_annotate_models.rake` task with the standard
rake task from `annotate_rb`, and added `lib/tasks/annotate_rb.rake` to
load annotation tasks in development environments.
[[1]](diffhunk://#diff-9450d2359e45f1db407b3871dde787a25d60bb721aed179a65ffd2692e95fb4bL1-L61)
[[2]](diffhunk://#diff-578cdfc7ad56637e42472ea891ea286dff8803d9a1750afdbfeafec164d9b8b2R1-R8)
**Model serialization improvements:**
* Updated the `InstallationConfig` model to set a default value for the
`serialized_value` attribute, ensuring it always has a hash with
indifferent access and removing the need for a deserialization
workaround in the `value` method.
[[1]](diffhunk://#diff-b4bdde42c1ad0f584073818bd43dbd865b1b3b50d4701b131979f900d7c68297L22-R22)
[[2]](diffhunk://#diff-b4bdde42c1ad0f584073818bd43dbd865b1b3b50d4701b131979f900d7c68297L36-L39)
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Co-authored-by: Sojan Jose <sojan@pepalo.com>
## PR#1: Reporting events rollup — model and write path
Reporting queries currently hit the `reporting_events` table directly.
This works, but the table grows linearly with event volume, and
aggregation queries (counts, averages over date ranges) get
progressively slower as accounts age.
This PR introduces a pre-aggregated `reporting_events_rollups` table
that stores daily per-metric, per-dimension (account/agent/inbox)
totals. The write path is intentionally decoupled from the read path —
rollup rows are written inline from the event listener via upsert, and a
backfill service exists to rebuild historical data from raw events.
Nothing reads from this table yet.
The write path activates when an account has a `reporting_timezone` set
(new account setting). The `reporting_events_rollup` feature flag
controls only the future read path, not writes — so rollup data
accumulates silently once timezone is configured. A `MetricRegistry`
maps raw event names to rollup column semantics in one place, keeping
the write and (future) read paths aligned.
### What changed
- Migration for `reporting_events_rollups` with a unique composite index
for upsert
- `ReportingEventsRollup` model
- `reporting_timezone` account setting with IANA timezone validation
- `MetricRegistry` — single source of truth for event-to-metric mappings
- `RollupService` — real-time upsert from event listener
- `BackfillService` — rebuilds rollups for a given account + date from
raw events
- Rake tasks for interactive backfill and timezone setup
- `reporting_events_rollup` feature flag (disabled by default)
### How to test
1. Set a `reporting_timezone` on an account
(`Account.first.update!(reporting_timezone: 'Asia/Kolkata')`)
2. Resolve a conversation or trigger a first response
3. Check `ReportingEventsRollup.where(account_id: ...)` — rows should
appear
4. Run backfill: `bundle exec rake reporting_events_rollup:backfill` and
verify historical data populates
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Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
