[feature]: Support all providers from models.dev instead of a hardcoded allowlist

[EriDeLee]

Pre-flight checks

• I searched existing issues and did not find a duplicate request.
• I reviewed current behavior on the production released OpenCode version.

OpenCode version reviewed

1.15.10

Problem statement

Some models don't show pricing or quota info because the code only loads a small hardcoded list of providers from models.dev. Many other providers (especially Chinese and coding-plan ones) are ignored even though they exist on models.dev.

Proposed change

Make the system automatically use every provider returned by the models.dev API instead of maintaining a hardcoded allowlist. Also add a few alias mappings so coding-plan providers can resolve pricing.

Alternatives considered

No response

Acceptance criteria

• All providers and models from models.dev are dynamically supported
• Common coding-plan providers (zhipuai, alibaba, minimax, etc.) resolve pricing correctly

[slkiser]

This is similar to a previously opened issue, but there tends to be a local to API mismatch when I attempt to track locally. An example of this is related to how/if cache is being written to properly. Trying to tune this for every provider is quite hard.

I'd imagine a good implantation is to support some kind of universal version that a user would config themselves, only to be disappointed when things don't align.

I also don't understand what this means:

Also add a few alias mappings so coding-plan providers can resolve pricing.

[EriDeLee]

Thanks for the feedback.

The alias mappings piece is just a small follow-on: once the snapshot covers all providers (alibaba-coding-plan, minimax-coding-plan, zhipuai, zai-coding-plan, etc.), we'd add a few one-line entries to the pricing resolver — similar to the existing zai-coding-plan → zai pattern — so OpenCode's coding-plan IDs resolve correctly to their pricing keys.

[EriDeLee]

Anyway, it's totally fine to close this if the maintenance overhead isn't worth it 🙏

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[github-actions]

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