chore(lint): enable unicorn/no-hex-escape

[HAYDEN-OAI]

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

Changes being requested

• Remove the unicorn/no-hex-escape 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 50; stacked on https://github.com/openai/openai-node.
• 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 👈 this PR
#2130
#2131
#2132
#2133
#2134
#2135
#2136
#2137
#2138
#2139
#2140
#2141

[openai-sdks]

OkTest Summary

✅ 237/237 SDK tests passed in 10.664s for Node SDK PR #2129.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	165ms
tests/chat-completions-create.test.ts	✅ Passed	273ms
tests/chat-completions-stream.test.ts	✅ Passed	232ms
tests/files-content-binary.test.ts	✅ Passed	202ms
tests/files-create-multipart.test.ts	✅ Passed	140ms
tests/files-list-pagination.test.ts	✅ Passed	154ms
tests/initialize-config.test.ts	✅ Passed	166ms
tests/instance-isolation.test.ts	✅ Passed	101ms
tests/models-list.test.ts	✅ Passed	144ms
tests/responses-background-lifecycle.test.ts	✅ Passed	218ms
tests/responses-body-method-errors.test.ts	✅ Passed	412ms
tests/responses-cancel-timeout.test.ts	✅ Passed	244ms
tests/responses-cancel.test.ts	✅ Passed	209ms
tests/responses-compact-retries.test.ts	✅ Passed	216ms
tests/responses-compact.test.ts	✅ Passed	234ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	121ms
tests/responses-create-advanced.test.ts	✅ Passed	150ms
tests/responses-create-disconnect.test.ts	✅ Passed	1.168s
tests/responses-create-errors.test.ts	✅ Passed	182ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	139ms
tests/responses-create-retries.test.ts	✅ Passed	265ms
tests/responses-create-stream-failures.test.ts	✅ Passed	207ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	2.139s
tests/responses-create-stream-wire.test.ts	✅ Passed	2.641s
tests/responses-create-stream.test.ts	✅ Passed	140ms
tests/responses-create-terminal-states.test.ts	✅ Passed	231ms
tests/responses-create-timeout.test.ts	✅ Passed	252ms
tests/responses-create.test.ts	✅ Passed	214ms
tests/responses-delete.test.ts	✅ Passed	261ms
tests/responses-input-items-errors.test.ts	✅ Passed	275ms
tests/responses-input-items-list.test.ts	✅ Passed	193ms
tests/responses-input-items-options.test.ts	✅ Passed	110ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	223ms
tests/responses-input-tokens-count.test.ts	✅ Passed	258ms
tests/responses-malformed-inputs.test.ts	✅ Passed	2.261s
tests/responses-not-found-errors.test.ts	✅ Passed	270ms
tests/responses-parse.test.ts	✅ Passed	180ms
tests/responses-retrieve-retries.test.ts	✅ Passed	227ms
tests/responses-retrieve.test.ts	✅ Passed	244ms
tests/responses-stored-method-errors.test.ts	✅ Passed	595ms
tests/retry-behavior.test.ts	✅ Passed	2.982s
tests/sdk-error-shape.test.ts	✅ Passed	286ms

View OkTest run #31217777276

_{SDK merge (c540bb846ed7) · head (c5a08b1bb41d) · base (15908924e3e2) · OkTest (91635c6a2723)}

[jbeckwith-oai]

Reviewed exact head c5a08b1. The Unicode escape replacements preserve the exact terminal control sequences, the rule is enabled directly, and the immediate stacked diff remains minimal. Exact-head CI is green.