chore(lint): enable no-multi-assign

[HAYDEN-OAI]

• I understand that this repository is auto-generated and my pull request may not be merged

Changes being requested

• Remove the no-multi-assign compatibility exception from oxlint.config.ts.
• Resolve the 2 existing handwritten-code diagnostics with focused, behavior-preserving cleanup.

Additional context & links

• Oxlint cleanup stack, part 57; stacked on chore(lint): enable yoda #2135.
• Preserves generated-file exclusions and repository-specific import policy.

Validation

• pnpm lint
• pnpm exec tsc --pretty false
• pnpm exec vitest run --config vitest.config.mts --update=none

Stack

#2129
#2130
#2131
#2132
#2133
#2134
#2135
#2136 👈 this PR
#2137
#2138
#2139
#2140
#2141

[jbeckwith-oai]

Reviewed exact head bb596ed. The chained assignments are replaced with direct, explicit initialization and assignment while preserving object identity, property-write order, snapshot accumulation, and choice indexing. No new state choreography or API/behavior regression found. The combined stack passes local lint, TypeScript 6 type-checking, and ChatCompletionStream tests; this PR's CI is green.

[openai-sdks]

OkTest Summary

✅ 237/237 SDK tests passed in 10.904s for Node SDK PR #2136.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	171ms
tests/chat-completions-create.test.ts	✅ Passed	264ms
tests/chat-completions-stream.test.ts	✅ Passed	237ms
tests/files-content-binary.test.ts	✅ Passed	156ms
tests/files-create-multipart.test.ts	✅ Passed	170ms
tests/files-list-pagination.test.ts	✅ Passed	163ms
tests/initialize-config.test.ts	✅ Passed	198ms
tests/instance-isolation.test.ts	✅ Passed	106ms
tests/models-list.test.ts	✅ Passed	161ms
tests/responses-background-lifecycle.test.ts	✅ Passed	205ms
tests/responses-body-method-errors.test.ts	✅ Passed	405ms
tests/responses-cancel-timeout.test.ts	✅ Passed	265ms
tests/responses-cancel.test.ts	✅ Passed	233ms
tests/responses-compact-retries.test.ts	✅ Passed	256ms
tests/responses-compact.test.ts	✅ Passed	231ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	132ms
tests/responses-create-advanced.test.ts	✅ Passed	177ms
tests/responses-create-disconnect.test.ts	✅ Passed	1.137s
tests/responses-create-errors.test.ts	✅ Passed	186ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	206ms
tests/responses-create-retries.test.ts	✅ Passed	289ms
tests/responses-create-stream-failures.test.ts	✅ Passed	246ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	2.167s
tests/responses-create-stream-wire.test.ts	✅ Passed	2.697s
tests/responses-create-stream.test.ts	✅ Passed	100ms
tests/responses-create-terminal-states.test.ts	✅ Passed	231ms
tests/responses-create-timeout.test.ts	✅ Passed	227ms
tests/responses-create.test.ts	✅ Passed	267ms
tests/responses-delete.test.ts	✅ Passed	215ms
tests/responses-input-items-errors.test.ts	✅ Passed	227ms
tests/responses-input-items-list.test.ts	✅ Passed	177ms
tests/responses-input-items-options.test.ts	✅ Passed	118ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	253ms
tests/responses-input-tokens-count.test.ts	✅ Passed	277ms
tests/responses-malformed-inputs.test.ts	✅ Passed	2.334s
tests/responses-not-found-errors.test.ts	✅ Passed	314ms
tests/responses-parse.test.ts	✅ Passed	223ms
tests/responses-retrieve-retries.test.ts	✅ Passed	307ms
tests/responses-retrieve.test.ts	✅ Passed	200ms
tests/responses-stored-method-errors.test.ts	✅ Passed	543ms
tests/retry-behavior.test.ts	✅ Passed	2.998s
tests/sdk-error-shape.test.ts	✅ Passed	278ms

View OkTest run #31226611350

_{SDK merge (7566d92ad859) · head (3fe19ee77f24) · base (7eef24404548) · OkTest (91635c6a2723)}