[Copilot]

Documentation Sync failed because Copilot no longer supports the configured claude-sonnet-4.6 model. API Sync shared the same stale default.

• Model configuration: Set both workflows to claude-sonnet-5.5.

  engine:
    id: copilot
    model: claude-sonnet-5.5

• Compiled workflows: Update both lock files to use the configured model for agent and detection runs.

[Copilot]

🔵 Needs a closer look

Compatibility of the selected model with pinned Copilot CLI version 1.0.55 remains unverified.

No open issues 🎉

What changed in this PR

Updates the scheduled documentation and API sync workflows to explicitly use claude-sonnet-5.5.

Changes:

• Adds explicit Copilot engine and model settings to both workflow definitions.
• Aligns compiled metadata, agent runs, and detection runs with the selected model.

File	Description
.github/​workflows/​doc-sync.md	Configures the documentation sync model.
.github/​workflows/​doc-sync.lock.yml	Updates compiled documentation sync settings.
.github/​workflows/​api-sync-check.md	Configures the API sync model.
.github/​workflows/​api-sync-check.lock.yml	Updates compiled API sync settings.

_{Review effort: Balanced}