Add RedBTC provider

[softweri]

Summary

• Add RedBTC as an AI provider for claw402.
• Add fixed-model chat endpoints for RedBTC GPT-5.5 and GPT-5.4 Mini.
• Add RedBTC provider logo.

Provider endpoints

Public upstream base URL for review:

https://redbtco.com/claw402

Routes:

GET  /api/v1/redbtc/models
POST /api/v1/redbtc/chat/5.5
POST /api/v1/redbtc/chat/5.4-mini

The upstream is protected with Authorization and should use the secret env name:

REDBTC_CLAW402_API_KEY

Pricing

• GPT-5.5 chat: $0.03 per call
• GPT-5.4 Mini chat: $0.008 per call
• Models list: $0.001 per call

Safety notes

• Dedicated marketplace gateway, no direct admin/codex2api exposure.
• Fixed model per endpoint.
• Non-streaming at launch.
• Hard limits: 10 RPM, concurrency 2, 1000 max output tokens, 500 daily requests.
• Upstream key will be shared through a secure channel after review.

Verification performed

• Public health endpoint returns 200.
• Unauthenticated model list returns 401.
• Authenticated model list returns redbtc/gpt-5.5 and redbtc/gpt-5.4-mini.
• Authenticated chat request completed successfully through the public endpoint.