### Check for existing issues

- [ ] #26669

### What happened?

## Description The `ui/litellm-dashboard/.npmrc` file currently contains an invalid npm config value: min-release-age=3d According to npm config definitions, `min-release-age` expects a plain number of days, not a duration string. The valid value should be: min-release-age=3 Because of this, running `npm install` in `ui/litellm-dashboard` can fail with npm config errors. ## Reproduction Using LiteLLM source from recent public tags such as: - `v1.83.7-stable` - `v1.83.10-stable` - `v1.83.13-nightly` - `v1.83.14.rc.1` Run: cd ui/litellm-dashboard npm install --legacy-peer-deps ## Actual behavior npm reads `.npmrc`, parses `min-release-age=3d`, and fails with an error similar to: npm warn invalid config before=null set in /frontend/.npmrc npm warn invalid config Must be one of: null, valid Date string npm error Invalid time value This also breaks custom Docker builds that copy `ui/litellm-dashboard` and run `npm install` directly. ## Expected behavior `npm install` should not fail because of an invalid `.npmrc` config value. The `.npmrc` should use: min-release-age=3 instead of: min-re…