feat(notifications): alert on verification changes

[chalabi2]

Why

Part of CON-800.

Tenants need advance notice of provider maintenance and a clear warning when an
active lease no longer meets its AEP-86 verification tier. Leases remain open;
these alerts expose the changed provider facts without changing lease lifecycle.

What

• consume provider maintenance events through the existing chain-event pipeline
• poll the Console API verification feed for tier-demotion transitions
• resolve active leases affected by each provider change
• deduplicate and claim notification delivery through additive persistence
• keep maintenance and tier-demotion delivery independently flag-gated
• add unit and functional coverage for retries, deduplication, and alert delivery

Dependencies

• build(repo): use AEP-86 SDK alpha #3713 supplies the AEP-86 SDK event and message types
• feat(indexer): ingest provider verification state #3717 supplies reconciled provider verification state
• feat(api): expose provider verification views #3719 supplies the cursor-based tier-demotion feed consumed by notifications

The generated Drizzle migration is isolated in its own commit.

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[github-actions]

🔄 Carefully review the package-lock.json diff

Resolve the comment if everything is ok

* node_modules/@akashnetwork/chain-sdk                                                     1.0.0-alpha.41 -> 1.0.0-alpha.43

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​akashnetwork/​chain-sdk@​1.0.0-alpha.41 ⏵ 1.0.0-alpha.43	+1		+1

View full report

[codecov]

Codecov Report

❌ Patch coverage is 92.89340% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.84%. Comparing base (37e3cc2) to head (ea56537).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...tion-alert/provider-tier-demotion-alert.service.ts	85.91%	8 Missing and 2 partials ⚠️
...tier-demotion/provider-tier-demotion.repository.ts	92.50%	2 Missing and 1 partial ⚠️
...ert/model-schemas/provider-tier-demotion.schema.ts	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3723      +/-   ##
==========================================
+ Coverage   79.76%   79.84%   +0.07%     
==========================================
  Files        1186     1194       +8     
  Lines       31867    32060     +193     
  Branches     7848     7882      +34     
==========================================
+ Hits        25418    25597     +179     
- Misses       5688     5705      +17     
+ Partials      761      758       -3     

Flag	Coverage Δ
api	90.34% <ø> (-0.03%)	⬇️
deploy-web	71.02% <ø> (ø)
log-collector	85.85% <ø> (ø)
notifications	94.25% <92.89%> (-0.07%)	⬇️
provider-console	81.38% <ø> (ø)
provider-inventory	84.98% <ø> (ø)
provider-proxy	88.22% <ø> (ø)
tx-signer	90.19% <ø> (ø)

Files with missing lines	Coverage Δ
...ents/handlers/chain-events/chain-events.handler.ts	100.00% <100.00%> (ø)
...alert/dto/event-provider-maintenance-opened.dto.ts	100.00% <100.00%> (ø)
...ert/repositories/alert/alert-json-fields.schema.ts	100.00% <100.00%> (ø)
...dules/alert/repositories/alert/alert.repository.ts	94.73% <100.00%> (+0.79%)	⬆️
...er-active-leases/provider-active-leases.service.ts	100.00% <100.00%> (ø)
...enance-alert/provider-maintenance-alert.service.ts	100.00% <100.00%> (ø)
...motion-feed/provider-tier-demotion-feed.service.ts	100.00% <100.00%> (ø)
...modules/alert/types/provider-tier-demotion.type.ts	100.00% <100.00%> (ø)
...s/src/modules/chain/providers/registry.provider.ts	100.00% <100.00%> (ø)
...chain-events-poller/chain-events-poller.service.ts	96.73% <ø> (ø)
... and 5 more

... and 4 files with indirect coverage changes

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