fix: add claude-opus-5 to embedded model pricing catalogs

[Copilot]

claude-opus-5 was missing from both embedded models.json pricing catalogs, causing the api-proxy to reject all requests with HTTP 400 — no pricing entry and no defaultAiCreditsPricing fallback configured on the scout workflow.

Changes

• pkg/cli/data/models.json — add claude-opus-5 entry under anthropic provider
• actions/setup/js/models.json — same entry for the runtime-side catalog

Pricing matches claude-opus-4-8 (the latest opus-4 tier):

"claude-opus-5": {
"cost": {
"input": "5e-06",
"output": "2.5e-05",
"cache_read": "5e-07",
"cache_write": "6.25e-06"
},
"provider_type": "anthropic"
}

Reference run: https://github.com/github/gh-aw/actions/runs/30237418674/job/89887918371

[Copilot]

Pull request overview

Adds Claude Opus 5 pricing to both embedded catalogs, preventing API proxy rejection.

Changes:

• Registers claude-opus-5 with Anthropic pricing.
• Keeps CLI and runtime catalogs synchronized.

Show a summary per file

File	Description
pkg/cli/data/models.json	Adds CLI-side pricing.
actions/setup/js/models.json	Adds runtime-side pricing.

Review details

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• Files reviewed: 2/2 changed files
• Comments generated: 0
• Review effort level: Medium

[github-actions]

🎉 This pull request is included in a new release.

Release: v0.83.4