fix(lint): baseline antd suppressions for new models-and-endpoints route files

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TLDR

Problem this solves:

• frontend-lint fails on the litellm_internal_staging -> main promote PR with three no-restricted-imports errors
• Three new route files added by feat(ui): give each Models + Endpoints tab its own path #34327 use antd but were left out of eslint-suppressions.json

How it solves it:

• Baseline no-restricted-imports for the three missed files via eslint --suppress-rule no-restricted-imports
• Matches the treatment feat(ui): give each Models + Endpoints tab its own path #34327 already applied to the other new antd-importing files it added in the same route (layout.tsx, PriceDataManagementTab.tsx)

Relevant issues

Linear ticket

Pre-Submission checklist

• I have added meaningful tests
• My PR passes all CI/CD checks (e.g., lint, format, unit tests)
• My PR's scope is as isolated as possible; it only solves 1 specific problem
• I have received a Greptile Confidence Score of at least 4/5 before requesting a maintainer review

Screenshots / Proof of Fix

Reproduction before the fix, at 64aad5877a (head of litellm_internal_staging):

$ cd ui/litellm-dashboard
$ npx eslint --no-warn-ignored --pass-on-unpruned-suppressions \
    'src/app/(dashboard)/models-and-endpoints/add/page.tsx' \
    'src/app/(dashboard)/models-and-endpoints/llm-credentials/page.tsx' \
    'src/app/(dashboard)/models-and-endpoints/vertexCredentialsUpload.ts'

/workspace/ui/litellm-dashboard/src/app/(dashboard)/models-and-endpoints/add/page.tsx
  3:1   error  'antd' import is restricted from being used by a pattern...  no-restricted-imports

/workspace/ui/litellm-dashboard/src/app/(dashboard)/models-and-endpoints/llm-credentials/page.tsx
  3:1  error  'antd' import is restricted from being used by a pattern...   no-restricted-imports

/workspace/ui/litellm-dashboard/src/app/(dashboard)/models-and-endpoints/vertexCredentialsUpload.ts
  1:1  error  'antd' import is restricted from being used by a pattern...   no-restricted-imports

✖ 5 problems (3 errors, 2 warnings)

After the fix, at the commit in this PR:

$ npx eslint --no-warn-ignored --pass-on-unpruned-suppressions \
    'src/app/(dashboard)/models-and-endpoints/add/page.tsx' \
    'src/app/(dashboard)/models-and-endpoints/llm-credentials/page.tsx' \
    'src/app/(dashboard)/models-and-endpoints/vertexCredentialsUpload.ts'

/workspace/ui/litellm-dashboard/src/app/(dashboard)/models-and-endpoints/add/page.tsx
  33:21  warning  Unexpected any. Specify a different type  @typescript-eslint/no-explicit-any
  35:40  warning  Unexpected any. Specify a different type  @typescript-eslint/no-explicit-any

✖ 2 problems (0 errors, 2 warnings)
exit=0

Both remaining warnings are pre-existing no-explicit-any warnings that don't fail the lint check.

Type

🐛 Bug Fix

Changes

ui/litellm-dashboard/eslint-suppressions.json: add no-restricted-imports entries for the three route files added in #34327 that still import from antd (Form.useForm for the two page wrappers, FormInstance / UploadProps types for the upload helper). These wrap existing antd-based components (AddModelTab, CredentialsPanel) that haven't been migrated to shadcn yet, so the baseline entry lets the antd import through in the same way #34327 baselined layout.tsx and PriceDataManagementTab.tsx. Generated via npx eslint --suppress-rule no-restricted-imports so the file stays in the format ESLint's suppressions tooling expects.

  

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