- Implemented 'weighted-round-robin' as a new routing strategy in DashboardPage.
- Introduced weight input fields in ApiKeyEntriesEditor, BaseProviderForm, and SponsorProviderForm.
- Added validation for credential weights, including integer checks and maximum limits.
- Updated localization files to include new weight-related labels and hints.
- Created utility functions for credential weight validation and parsing.
- Added tests for credential weight handling and visual config routing strategy.
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