[dcoric]

Description

Repository pages currently scan push history to calculate counts and recent activity. Maintain summaries for the file, MongoDB, and PostgreSQL sinks instead, preserving status precedence, canonical URL matching, and latest push/pending timestamps.

File summaries update in memory. MongoDB persists revisions and retries interrupted refreshes. PostgreSQL migration 9 records audit changes transactionally and refreshes the affected summaries. Existing audits are preserved, and deployment documentation covers backfill and rebuilding derived data.

Startup migration 20261013-repository-activity backfills summaries before either server accepts requests. MongoDB checks for duplicate push IDs without deleting audits, and concurrent dashboard reads share one refresh per process while revision checks protect against stale work from other instances. Rebuilding is available through the shared database API for all three sinks.

Review actions also invalidate the relevant UI caches, and a shared helper handles numeric and serialized approval/rejection timestamps.

Related Issue

Activity portion of #1691 and PostgreSQL parity in #1794, following the merge of #1687. Audit storage and list/detail payload changes are isolated in #1795. Both PRs are needed to complete the agreed scope. The Action.diff work in #1693 and #1701 remains separate.

Validation

• 1,698 unit tests passed; 90.86% line coverage.
• 85 MongoDB and 89 PostgreSQL integration tests passed, including duplicate-ID migration recovery, concurrent readers, stale refresh protection, and shared rebuild behavior.
• Six real Git push/fetch scenarios and all 18 current Cypress tests passed against PostgreSQL.
• Manually checked approval/rejection timestamps, full diffs, and immediate count updates after rejection. A real MongoDB startup with duplicate IDs failed before either server listened, preserved both audits, and succeeded after reconciliation.
• Verified the documented rebuild command using the installed package API.
• Production build, TypeScript, formatting, and lint passed, with the existing tagPush Cypress warning.
• Combined with perf: reduce duplicate push audit storage #1795 locally: 729 unit/service/processor tests, 95 MongoDB integration tests, 101 PostgreSQL integration tests, six Git push/fetch scenarios, and 18 Cypress tests passed. The sink adapter overlap has been resolved and verified locally for when the second PR is updated after the first merges.

On a local synthetic PostgreSQL history of 10,000 pushes across 10 repositories, five-run median warm reads were 2.44 ms for summaries versus 11.27 ms for the previous history query. Initial backfill took 178.51 ms. These are workload examples, not general performance guarantees.

Checklist

• CONTRIBUTING.md reviewed; Conventional Commits used
• FINOS CLA on file
• Tests and deployment documentation updated
• Unit/integration tests, lint, formatting, type checks, and build passed

No configuration schema changes.

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[codecov]

Codecov Report

❌ Patch coverage is 98.85057% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.62%. Comparing base (23dbf00) to head (739bef8).

Files with missing lines	Patch %	Lines
src/db/mongo/repoActivity.ts	97.00%	0 Missing and 3 partials ⚠️
src/db/repoActivity.ts	98.27%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1801      +/-   ##
==========================================
+ Coverage   87.05%   88.62%   +1.57%     
==========================================
  Files         113      123      +10     
  Lines        6482     6876     +394     
  Branches     1260     1305      +45     
==========================================
+ Hits         5643     6094     +451     
+ Misses        536      487      -49     
+ Partials      303      295       -8     

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[dcoric]

@kriswest, a bit of context: this PR covers the repository activity optimisation from #1691. I split it out of #1795 following Juan’s suggestion to review it separately from the audit-storage changes. #1795 reduces duplicate audit data, while this PR maintains activity summaries so repository-page loads don’t need to recalculate them from the full push history.