Adds an optional wireModelId field to the Model interface and a
resolveWireModelId helper. Forge's canonical model.id stays stable for
selection, capability scoring, policy, and history; providers now send
model.wireModelId on the wire when set, model.id otherwise.
Use cases: Azure deployment names, vendor model slugs that differ
from Forge's canonical identity, A/B routing where the operator wants
canonical history but a specific deployment.
Wired through every provider in @singularity-forge/ai (anthropic,
amazon-bedrock, azure-openai-responses, google, google-vertex,
google-gemini-cli, mistral, openai-codex-responses, openai-completions,
openai-responses) plus @singularity-forge/coding-agent's
ModelRegistry (model definitions + per-model overrides).
Tests: openai-completions wireModelId payload coverage +
model-registry-auth-mode coverage for the override + definition fields.
Full pi-ai + coding-agent suite: 956/956 ✓ (7 unrelated skipped).
This realizes the model-registry contract drafted in 1d753af6b.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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