feat(gateway): add NeuralWatt as an OpenAI-compatible provider

[kilo-code-bot]

Summary

Add NeuralWatt as a new OpenAI-compatible provider to the Kilo gateway. NeuralWatt uses the standard OpenAI chat completions API format, so it requires no custom request transformations. Changes:

• Added 'neuralwatt' to the ProviderId union type
• Added NEURALWATT provider definition with base URL https://api.neuralwatt.com/v1, NEURALWATT_API_KEY env var, and chat_completions support

Verification

• Verified changes follow the exact pattern used by other simple OpenAI-compatible providers (e.g., Morph)
• provider-definitions.ts uses as const satisfies Record<string, Provider> which ensures type correctness at compile time
• Confirmed 'neuralwatt' is added to the ProviderId union, matching the id in the provider definition

Visual Changes

N/A

Reviewer Notes

• The NEURALWATT_API_KEY environment variable will need to be set in deployment environments before routing traffic to this provider.
• NeuralWatt returns an extra energy field in responses which the gateway will harmlessly ignore.
• No free models are defined yet — this PR only registers the provider in the gateway. Free models can be added separately by creating a neuralwatt.ts model definition file and adding it to kiloFreeModels.

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Built for Joshua Lambert by Kilo for Slack

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (2 files)

• src/lib/providers/provider-definitions.ts
• src/lib/providers/types.ts

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_{Reviewed by gpt-5.4-20260305 · 427,821 tokens}