This PR is a comprehensive update addressing multiple bounties and introducing foundational AI features:

Bounties Addressed:

• AWS Comprehend PII Redactor & Batch support (/claim #290) -
• Smart Router (LiteLLM-like) with failover support (/claim #286) -
• Google Palm2AI support (/claim #279) -
• Qdrant REST client unit tests (/claim #273) -
• GitHub Action label check (/claim #212)

New AI Providers:

• AnthropicAI: Support for Claude 3.5 Sonnet and other messages-based models.
• DeepSeekAI: Support for DeepSeek-V3 and DeepSeek-R1 (OpenAI-compatible).
• Refactored OpenAI: Class now supports custom base URLs for easier integration with third-party providers.

Enhancements:

• SmartRouter Integration: All new providers (Anthropic, DeepSeek, Palm2) are integrated into the unified SmartRouter.
• Streaming Support: Added scaffolding and basic implementation for streamed chat in SmartRouter.
• Unit Tests: Added Vitest test suites for all new components (Anthropic, DeepSeek, Palm2, SmartRouter, Qdrant).
• Examples: Provided usage examples for all new components in the ‘examples’ directory.

All code has been formatted with Prettier and passes all unit tests.