Add Gatewayz.ai provider support

[vdimarco]

This PR adds support for Gatewayz as an LLM provider in the Zen API system. Gatewayz is a universal AI gateway that provides access to 1000+ models with circuit breakers, load balancing, and comprehensive monitoring.

Key Features
OpenAI-Compatible API: Seamlessly integrates with existing OpenAI-compatible endpoints
Universal Inference Gateway: Access to Claude, GPT, Llama, and 50+ other models
Advanced Monitoring: Real-time health checks, error detection, and automatic fallback routing
Token Usage Tracking: Full support for usage statistics and billing

Changes Made
Added gatewayz.ts provider helper with OpenAI-compatible format support
Updated provider registry to export Gatewayz helper for future customizations
Provider will automatically route through oa-compat format in the Zen handler

API Compatibility
Base URL: https://api.gatewayz.ai
Auth: Bearer token (X-API-Key header)

Endpoints:
/v1/chat/completions - Main inference endpoint
/v1/models - List available models
/health/* - System and provider health monitoring
Response Format: OpenAI-compatible JSON

Testing
Providers can be configured in the ZenData system by specifying:
id: Provider identifier (e.g., "gatewayz")
api: Base URL (https://api.gatewayz.ai)
format: "oa-compat"
apiKey: Bearer token from Gatewayz account

[rekram1-node]

Thank you for the PR but for Zen itself we select the providers ourselves so we would prefer you talk to us before trying to make changes

[github-actions]

Hey! Your PR title Add Gatewayz.ai provider support doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[vdimarco]

Hi @rekram1-node how do we get in touch? We would be interested in serving models for Zen but also having Gatewayz AI recognized as a provider in the /connect menu

[github-actions]

Closing this pull request because it has had no updates for more than 60 days. If you plan to continue working on it, feel free to reopen or open a new PR.