Initial commit: OpenRouter Python SDK

Auto-generated Python SDK for OpenRouter API, providing comprehensive client library with:
- Chat completions and streaming support
- Embeddings API
- Model and provider information
- API key management
- Analytics and usage tracking
- OAuth authentication flows
- Full type hints and error handling

docs/models/tokenizer.md

@@ -0,0 +1,28 @@
+# Tokenizer
+
+Tokenizer type used by the model
+
+
+## Values
+
+| Name        | Value       |
+| ----------- | ----------- |
+| `ROUTER`    | Router      |
+| `MEDIA`     | Media       |
+| `OTHER`     | Other       |
+| `GPT`       | GPT         |
+| `CLAUDE`    | Claude      |
+| `GEMINI`    | Gemini      |
+| `GROK`      | Grok        |
+| `COHERE`    | Cohere      |
+| `NOVA`      | Nova        |
+| `QWEN`      | Qwen        |
+| `YI`        | Yi          |
+| `DEEP_SEEK` | DeepSeek    |
+| `MISTRAL`   | Mistral     |
+| `LLAMA2`    | Llama2      |
+| `LLAMA3`    | Llama3      |
+| `LLAMA4`    | Llama4      |
+| `PA_LM`     | PaLM        |
+| `RWKV`      | RWKV        |
+| `QWEN3`     | Qwen3       |