feat: add address scanning to phishing controller

[AugmentedMode]

Explanation

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

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Note

Introduces scanAddress with per-chain caching, new types, and messenger action to screen EVM addresses via Security Alerts API.

• Controller (src/PhishingController.ts)
  • Add scanAddress(chainId, address) hitting SECURITY_ALERTS_BASE_URL + ADDRESS_SCAN_ENDPOINT with 5s timeout; returns AddressScanResult and caches per chainId+address.
  • Add addressScanCache (state, metadata), cache manager, defaults (DEFAULT_ADDRESS_SCAN_CACHE_TTL/MAX_SIZE), and options (addressScanCacheTTL/MaxSize).
  • Register action PhishingController:scanAddress and export constants SECURITY_ALERTS_BASE_URL, ADDRESS_SCAN_ENDPOINT.
• Types/Exports
  • Add AddressScanResult, AddressScanResultType, AddressScanCacheData; extend chain ID map; export new types/enums via index.ts.
• Tests (PhishingController.test.ts)
  • Add comprehensive scanAddress tests: success, HTTP errors, timeout, validation, normalization, caching (including per-chain).
  • Update metadata snapshots to include addressScanCache.
• Changelog
  • Document new address scanning feature and related API/action/state additions.

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