Add Ollama Cloud logo SVG to assets

## Description

Add the official Ollama logo SVG to `crates/aionui-assets/assets/logos/ai-cloud/ollama.svg`.

This logo is needed for the Ollama Cloud provider preset added in the AionUi desktop client (branch `feat/ollama-cloud-provider`).

## File to add

**Path:** `crates/aionui-assets/assets/logos/ai-cloud/ollama.svg`

The SVG content is the official Ollama logo from https://github.com/ollama/ollama/blob/main/docs/ollama-logo.svg (MIT licensed).

```svg

```

(Full SVG content attached — see the file in the AionUi repo at `resources/ai-cloud/ollama.svg`)

## Context

- AionUi branch: `feat/ollama-cloud-provider`
- Provider entry uses `buildLogoAssetUrl('ai-cloud/ollama.svg')` which resolves to `/api/assets/logos/ai-cloud/ollama.svg`
- Without this file, the Ollama Cloud provider shows without a logo in the model settings UI

Add the official SVG to crates/aionui-assets/assets/logos/ai-cloud/ollama.svg, using the source linked in the issue or the attached resources/ai-cloud/ollama.svg file. Verify that buildLogoAssetUrl('ai-cloud/ollama.svg') resolves to the asset path and that the Ollama Cloud provider displays its logo in the model settings UI.

Written by the indexing model from the issue text.