Add SandBase CLI to Providers — 2,000+ models/APIs including DeepSeek

## Suggested integration

Please consider adding **SandBase CLI**, maintained by [SandBase AI](https://github.com/sandbaseai), under **Providers**.

SandBase CLI is an Apache-2.0 agent-first CLI and local MCP bridge that gives 25 AI client targets access to 2,000+ models and APIs through one authenticated workflow. DeepSeek is explicitly listed among the supported model families in the project README:

https://github.com/sandbaseai/cli/blob/main/README.md#what-you-can-do

Suggested table row:

```html

SandBase CLI
Agent-first CLI and local MCP bridge connecting 25 AI clients to 2,000+ models and APIs, including DeepSeek, with OAuth onboarding, safe configuration updates, diagnostics, and rollback.

```

Project links:

- Repository: https://github.com/sandbaseai/cli
- Website: https://www.sandbase.ai
- Latest release: https://github.com/sandbaseai/cli/releases/tag/v0.1.17
- Supported-client catalog: https://github.com/sandbaseai/cli/blob/main/src/catalog.ts

Reproducible Claude Desktop MCP example:

```bash
npx -y https://github.com/sandbaseai/cli/releases/download/v0.1.17/sandbaseai-cli-0.1.17.tgz mcp-bridge --client claude-desktop
```

Release artifact SHA-256: `1ad535b2899ca460b57b3c268aef278fee28fd28e649a89b92951514fd71fffa`.

Disclosure: the npm package currently trails the GitHub release, so the command intentionally uses the immutable v0.1.17 GitHub Release artifact. This is an Issue-based suggestion because the project owner has requested that no external forks be created.