docs: add docs for docs.ollama.com (#12805)

docs/integrations/roo-code.mdx

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+---
+title: Roo Code
+---
+
+
+## Install
+
+Install [Roo Code](https://marketplace.visualstudio.com/items?itemName=RooVeterinaryInc.roo-cline) from the VS Code Marketplace.
+
+## Usage with Ollama
+
+1. Open Roo Code in VS Code and click the **gear icon** on the top right corner of the Roo Code window to open **Provider Settings**
+2. Set `API Provider` to `Ollama`
+3. (Optional) Update `Base URL` if your Ollama instance is running remotely. The default is `http://localhost:11434`
+4. Enter a valid `Model ID` (for example `qwen3` or `qwen3-coder:480b-cloud`)
+5. Adjust the `Context Window` to at least 32K tokens for coding tasks
+
+<Note>Coding tools require a larger context window. It is recommended to use a context window of at least 32K tokens. See [Context length](/context-length) for more information.</Note>
+
+## Connecting to ollama.com
+
+1. Create an [API key](https://ollama.com/settings/keys) from ollama.com
+2. Enable `Use custom base URL` and set it to `https://ollama.com`
+3. Enter your **Ollama API Key**
+4. Select a model from the list
+
+### Recommended Models
+
+- `qwen3-coder:480b`
+- `deepseek-v3.1:671b`