feat(data-api): add the account_events_daily rollup write path to Postgres

[JSONbored]

Summary

• Gap-closure from the fix(data-api): 25 more D1-only handlers — some serving frozen data since the streamer stopped #4832 completeness sweep: account_events_daily's Postgres table already existed (schema mirrors D1) but nothing wrote to it, since indexer-rs writes account_events directly and continuously — unlike the daily neurons snapshot (Build the metagraph/neuron pipeline's missing Postgres write path (neurons + neuron_daily) #4771/feat(data-api): migrate account_position_daily to Postgres #4839), there's no existing write request to piggyback a rollup onto.
• Adds POST /api/v1/internal/rollup-account-events-daily (workers/data-api.mjs): re-rolls the two active UTC days from account_events into account_events_daily, mirroring D1's rollupAccountEventsDaily (src/account-events.mjs) exactly. Proxied through the main Worker the same way neurons-sync is — refactored handleNeuronsSyncProxy into a shared proxyToDataApi helper since the two routes are otherwise identical (same behavior preserved; the existing tests/neurons-sync-proxy.test.mjs passes unchanged).
• Adds a new hourly GitHub Actions workflow (rollup-account-events-daily.yml) to trigger it, matching D1's own hourly cadence.
• Adds the read route GET /api/v1/accounts/:ss58/history (netuid/from/to filters + cursor pagination, same shape as its D1 sibling) and wires tryPostgresTier into handleAccountHistory.

Test plan

• npx vitest run tests/data-api.test.mjs tests/request-handlers-entities.test.mjs tests/neurons-sync-proxy.test.mjs tests/rollup-account-events-daily-proxy.test.mjs — 199 + 490 + 5 + 5 tests pass (new write-route tests cover auth/not-provisioned/hyperdrive-unavailable/success/DB-failure; new read-route tests cover the happy path, netuid/date-range filters, cursor seek, and full-page next_cursor emission; new wiring tests confirm postgres-wins/falls-back-to-D1)
• npx vitest run (full repo) — 260 files / 7391+ tests pass
• npm run lint / npx prettier --check on touched files — clean
• npm run scan:public-safety — clean
• npm run test:coverage + manual branch-coverage isolation on the diff — every uncovered branch confirmed pre-existing/outside the patch

Deploy note

After merge: provision ROLLUP_SYNC_SECRET via wrangler secret put ROLLUP_SYNC_SECRET -c wrangler.data.jsonc and add the same value as a ROLLUP_SYNC_SECRET GitHub Actions secret, then manually trigger the new workflow once to verify live before its first scheduled run.

Refs #4832

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	metagraphed-data-api	004e829	Commit Preview URL Branch Preview URL	Jul 11 2026, 05:01 AM

[superagent-security]

Superagent didn't find any vulnerabilities or security issues in this PR.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.78%. Comparing base (46a0e13) to head (874dd7c).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4840   +/-   ##
=======================================
  Coverage   97.77%   97.78%           
=======================================
  Files         162      162           
  Lines       19137    19189   +52     
  Branches     7188     7208   +20     
=======================================
+ Hits        18712    18764   +52     
  Misses         59       59           
  Partials      366      366           

Files with missing lines	Coverage Δ
workers/api.mjs	95.16% <100.00%> (+0.01%)	⬆️
workers/data-api.mjs	99.60% <100.00%> (+0.02%)	⬆️
workers/request-handlers/entities.mjs	99.34% <100.00%> (+<0.01%)	⬆️

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.