fix(test): make the test suites typecheck

[quietbits]

• Fixed test/tsconfig.json, which had been typechecking nothing — its vitest/globals entry could not resolve under the config's own typeRoots, so tsc reported a single TS2688 and silently skipped all 130 files it had loaded
• Fixed 107 type errors across 38 test files, mostly union narrowing through the existing expectVariant and expectDefined helpers, .js extensions on relative imports, and branded XDR byte types (ContractId/PoolId where Hash was being passed)
• Aligned the test config with the build config — enabled noImplicitAny, dropped exactOptionalPropertyTypes, set importHelpers: false — clearing 33 errors reported against src/** that build:types never produces
• Added a typecheck:tests script and chained it into test
• Replaced the single _.isMatch call in the apiary integration test with toMatchObject and arrayContaining, and dropped the now-unused lodash devDependency
• Removed a "raw" format argument in strkey.test.ts that matches no fromXdr overload and is discarded at runtime

[Copilot]

Pull request overview

Restores TypeScript checking for test suites and resolves resulting type errors.

Changes:

• Fixes test TypeScript configuration and adds typecheck:tests.
• Adds union narrowing, branded XDR types, and explicit .js imports.
• Replaces Lodash matching with Vitest matchers and removes Lodash.

Reviewed changes

Copilot reviewed 39 out of 40 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
test/unit/xdr/schema_exhaustive.test.ts	Uses public XDR type export; removes unused variable.
test/unit/utils.test.ts	Removes unused import.
test/unit/spec/event_spec.test.ts	Narrows decoded event topic variant.
test/unit/spec/contract_spec.test.ts	Adds safe XDR map/value narrowing.
test/unit/server/soroban/simulate_transaction.test.ts	Fixes imports and XDR typing.
test/unit/server/soroban/send_transaction.test.ts	Adds .js import extension.
test/unit/server/soroban/query_contract.test.ts	Adds .js import extension.
test/unit/server/soroban/get_version_info.test.ts	Adds .js import extension.
test/unit/server/soroban/get_transactions.test.ts	Adds .js import extension.
test/unit/server/soroban/get_transaction.test.ts	Fixes import and removes unused XDR binding.
test/unit/server/soroban/get_network.test.ts	Adds .js import extension.
test/unit/server/soroban/get_ledger_entries.test.ts	Adds .js import extension.
test/unit/server/soroban/get_latest_ledger.test.ts	Adds .js import extension.
test/unit/server/soroban/get_health.test.ts	Adds .js import extension.
test/unit/server/soroban/get_fee_stats.test.ts	Adds .js import extension.
test/unit/server/soroban/get_events.test.ts	Adds .js import extension.
test/unit/server/soroban/get_contract_wasm.test.ts	Uses directly typed XDR imports.
test/unit/server/soroban/get_contract_methods.test.ts	Uses directly typed XDR imports.
test/unit/server/soroban/get_contract_data.test.ts	Adds .js import extension.
test/unit/server/soroban/get_classic_entries.test.ts	Fixes import and unused parameter.
test/unit/server/soroban/get_account.test.ts	Adds .js import extension.
test/unit/server/soroban/constructor.test.ts	Adds .js import extension.
test/unit/server/soroban/assembled_transaction.test.ts	Narrows unions and corrects string arguments.
test/unit/server_async_transaction.test.ts	Removes unused import.
test/unit/guide-snippets.test.ts	Adds .js import extension.
test/unit/contract/client_from.test.ts	Adds .js import extension.
test/unit/base/transaction.test.ts	Removes unused types and type-safe mutation casts.
test/unit/base/strkey.test.ts	Removes unsupported XDR format argument.
test/unit/base/scval.test.ts	Adds safe ScVal narrowing.
test/unit/base/operations/set_options.test.ts	Narrows parsed signer hashes to bytes.
test/unit/base/numbers/xdr_large_int.test.ts	Removes unused import.
test/unit/base/muxed_account.test.ts	Removes unused import.
test/unit/base/events.test.ts	Uses branded contract identifiers.
test/unit/base/auth.test.ts	Narrows authorization credential variants.
test/unit/base/address.test.ts	Uses branded contract and pool identifiers.
test/tsconfig.json	Enables effective test-suite typechecking.
test/integration/bindings.test.ts	Removes unused import.
test/integration/apiary.test.ts	Replaces Lodash matching with Vitest.
pnpm-lock.yaml	Removes direct Lodash lock entries.
package.json	Adds test typecheck script and removes Lodash.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

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