[model-inventory] Refresh mirrored model catalog and add missing gemini-3.6-flash entry

[Copilot]

Daily inventory showed alias coverage was already current, but the mirrored model catalog files were stale relative to models.dev and Copilot pricing data. This PR updates the catalog content and restores the missing Copilot Gemini entry needed by current alias/pricing expectations.

• Catalog sync correction

  • Refreshes the mirrored model inventory in:
    • pkg/cli/data/models.json
    • actions/setup/js/models.json
  • Keeps both files aligned as the canonical mirrored pair consumed by CLI/setup paths.

• Missing Copilot model restoration

  • Adds github-copilot → gemini-3.6-flash with pricing and metadata consistent with sibling Gemini Copilot entries.
  • Preserves expected metadata shape (provider_type, wire_api) for downstream compatibility.

• No alias changes

  • pkg/workflow/data/model_aliases.json remains unchanged; existing alias patterns already resolve current live provider model families.

"gemini-3.6-flash": {
  "cost": {
    "input": "1.5e-06",
    "output": "7.5e-06",
    "cache_read": "1.5e-07"
  },
  "provider_type": "openai",
  "wire_api": "completions"
}

• Fixes [model-inventory] Model alias inventory update - 2026-07-28 #48517

[pelikhan]

@copilot run pr-finisher skill, recompile

[Copilot]

@copilot run pr-finisher skill, recompile

Ran the pr-finisher pass and make recompile. Recompile completed cleanly with no file changes, so there is no new commit to add for this request; branch head remains d809d99.

[Copilot]

Pull request overview

Adds Gemini 3.6 Flash pricing and routing metadata to both mirrored model catalogs.

Changes:

• Adds Copilot token pricing for gemini-3.6-flash.
• Configures OpenAI-compatible completions routing.
• Keeps CLI and setup catalogs synchronized.

Show a summary per file

File	Description
pkg/cli/data/models.json	Adds the CLI catalog entry.
actions/setup/js/models.json	Mirrors the setup catalog entry.

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: v0.83.5