feat: begin adding integration docs

[jamescalam]

PR Type

• Documentation

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Description

• Add Jina integration documentation.

• Introduce overall integrations overview.

• Provide setup instructions and usage examples.

• Update example integration notebook.

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Changes walkthrough 📝

	Relevant files
Documentation	3 files jina.md Add Jina integration docs with usage examples                        +95/-0    integrations.md Add overall integrations documentation overview                    +53/-0    chatbot-with-guardrails.ipynb Update integration example notebook content                            [link]
Additional files	8 files aurelio.md [link]    cohere.md [link]    litellm.md [link]    mistral.md [link]    nvidia.md [link]    openai.md [link]    pydantic-ai.md [link]    voyage.md [link]

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🧪 No relevant tests

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⚡ Recommended focus areas for review Installation Command Validate that the pip installation command and version specifier syntax works as expected across different environments. Consider testing or clarifying if additional quotation or escape characters are needed. ```bash pip install semantic-router>=0.1.8 </details> </td></tr> </table>

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