chore: migrate off deprecated perspective APIs (SDK 2.0 / euler-sdks#93)

[kasperpawlowski]

Summary

Prepares euler-lite for the SDK release containing euler-xyz/euler-sdks#93 (LITE-324). Draft — do not merge until that release publishes and the version-bump commit is added. CI typecheck will fail on this PR until then: the renamed APIs don't exist in the pinned 1.2.5.

Changes

Method renames (behavior identical — the ESCROW enum member survives; #93 only retires GOVERNED/EDGE):

• server/utils/labels-view.ts, server/utils/vaults-cache.ts, utils/vault/categories.ts — the three real escrow-discovery call sites: fetchVerifiedVaultAddresses → fetchPerspectiveVaultAddresses
• utils/sdk-vault-meta-stub.ts — IVaultMetaService throw-stubs renamed to match the new interface
• Test mocks in tests/server/vaults-cache.test.ts and tests/composables/useVaults.test.ts

Dead mapping removal — #93 also deletes these from the SDK deployment types; lite mapped them into its address objects but nothing consumed them (verified by repo-wide trace):

• Perspective addresses: eulerEarnGovernedPerspective, eulerUngoverned0xPerspective, eulerUngovernedNzxPerspective, governedPerspective
• Non-perspective fields removed by the same PR: eUSD, seUSD (incl. lite's EulerTokenAddresses type), externalVaultRegistry, irmRegistry, oracleAdapterRegistry

Conceptually lite is already aligned with #93's rationale: trust comes from euler-labels + governor verification, and lite only uses the structural ESCROW perspective.

Verification

Validated against an SDK built locally from the #93 branch head (installed as a tarball, not committed):

• nuxt typecheck clean
• Full suite: 1612 passed, 1 skipped
• Lint clean
• After the SDK release: add the package.json/lockfile bump commit, re-run CI (note .npmrc min-release-age=7 — install the fresh version from outside the repo or wait out the window)

Merge dependency

Blocked on euler-xyz/euler-sdks#93 publishing (planned as the 2.0.0 breaking release, separate from the additive 1.3.0 carrying safeAccountService from euler-xyz/euler-sdks#94).

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[railway-app]

🚅 Deployed to the euler-lite-pr-800 environment in euler-lite(dev,PR previews)

Service	Status	Web	Updated (UTC)
dev-build	✅ Success (View Logs)	Web	Aug 11, 2026 at 10:27 am

[kasperpawlowski]

Closing — after euler-xyz/euler-sdks#93 dropped the fetchPerspectiveVault* rename (the perspectives' own on-chain API is isVerified()/verifiedArray(), so the SDK keeps the fetchVerifiedVault* names), nothing in this PR remains:

• All rename hunks (server/utils/labels-view.ts, server/utils/vaults-cache.ts, utils/vault/categories.ts, utils/sdk-vault-meta-stub.ts, both test mocks) revert to what master already has.
• The dead-mapping removal in composables/useEulerAddresses.ts is byte-identical to what chore: drop pruned euler-interfaces address keys from the addresses composable #794 already merged (this branch forked before chore: drop pruned euler-interfaces address keys from the addresses composable #794 landed; git merges the duplicate deletions cleanly, but the net contribution is zero).

Master only references the surviving SDK surface — three fetchVerifiedVaultAddresses(chainId, [StandardEVaultPerspectives.ESCROW]) call sites and no removed enum members or Deployment keys — so euler-lite is already compatible with the upcoming breaking SDK release as-is. The only remaining action is the routine package.json/lockfile bump once it publishes, which fits a fresh one-commit PR at that point (mind .npmrc min-release-age=7). Reopen if you'd rather keep this as the bump placeholder.

[kasperpawlowski]

Correction of the earlier status note: the rename portion of euler-xyz/euler-sdks#93 was deliberately reverted before merge — published 2.0.0 matches the SDK's main and fetchVerifiedVault* remain the stable surface. No future rename release is pending, so this PR is correctly closed: its deployment-field cleanup landed via the stack's 2.0.0 bump, and its renames are not needed.