feat(oxlint): disallow accumulating spread

[karsten-bot]

Adds oxc/no-accumulating-spread to the shared Oxlint core preset at error severity.

The rule was not previously enabled because the preset enables selected performance rules rather than Oxlint's full perf category. It prevents quadratic copying caused by spreading an accumulator in reduce callbacks or loops.

Verification:

• npx --yes oxlint@1.80.0 --config ./oxlint/core.jsonc <fixture> rejects an accumulating-spread fixture with oxc(no-accumulating-spread)
• the same command accepts an equivalent Object.fromEntries fixture
• git diff --check

References TIM-344