[PowerTokens]

Description

Adds PowerTokens as a built-in OpenAI-compatible provider.

I work on PowerTokens (powertokens.ai). It is an OpenAI-compatible gateway at https://api.powertokens.ai/v1, focused on mainland-reachable access to GLM / MiniMax / Qwen / DeepSeek models.

Closes #3996

Follows the current registry guide (docs/adding-new-provider.md) and the same pattern as LongCat / SiliconFlow:

• ModelProviderEnum.PowerTokens = 'powertokens'
• src/shared/providers/definitions/powertokens.ts + models/powertokens.ts (OpenAICompatible)
• Side-effect import in builtin-registration.ts
• Default host https://api.powertokens.ai/v1 with curated models: glm-5.2, glm-5.3, glm-5-turbo, MiniMax-M3, qwen3-coder-plus, qwen3-max, deepseek-v3-2-251201
• Icon: src/renderer/static/icons/providers/powertokens.png (picked up by providerIconSrc)
• Included in BUILTIN_API_HOST_PROVIDERS so the host field stays editable
• Tests: powertokens.test.ts, contract order, spotlight list, getModel OpenAI-compatible row

How to test

1. Build / run Chatbox, open Settings → Providers → Add provider, search PowerTokens.
2. Paste an API key from https://powertokens.ai/api-keys
3. Confirm default host is https://api.powertokens.ai/v1 and the curated models appear.
4. Send a short chat with deepseek-v3-2-251201 or glm-5.2.
5. Optional: GET https://api.powertokens.ai/v1/models with the same key to refresh/discover additional models.

Links (no UTM)

• Website: https://powertokens.ai
• API keys: https://powertokens.ai/api-keys
• Docs: https://docs.powertokens.ai

Contributor Agreement

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• I grant the official edition development team the rights to freely use, modify, and distribute this code, including for commercial purposes.
• I confirm that this code is my original work, or I have obtained the appropriate authorization from the copyright holder to submit this code under these terms.
• I understand that the submitted code will be publicly released under the GPLv3 license, and may also be used in the proprietary official edition.

Please check the box below to confirm:

[x] I have read and agree with the above statement.

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