Fix lint failures: standardize ESLint usage and scope case blocks

[Copilot]

CI lint job was failing due to apps/site using next lint without required Next.js ESLint config, and lexical declarations in unscoped switch case blocks.

Changes

apps/site/package.json

• Changed lint script from next lint to eslint . to use root flat config

packages/core/src/adapters/objectstack-adapter.ts

• Added block scopes to delete and update cases to satisfy ESLint no-case-declarations rule

case 'delete': {
  const ids = data.map(item => (item as any).id).filter(Boolean);
  await this.client.data.deleteMany(resource, ids);
  return [];
}

All packages now use consistent eslint . command with root-level flat config.

Original prompt

引用: https://github.com/objectstack-ai/objectui/actions/runs/21192354319/job/60964466074#step:8:1

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Project	Deployment	Review	Updated (UTC)
objectui-docs	Error		Jan 21, 2026 1:19am
objectui-site	Ready	Preview, Comment	Jan 21, 2026 1:19am

[github-actions]

✅ All checks passed!

• ✅ Type check passed
• ✅ Tests passed
• ✅ Lint check completed