fix(ai): address Bedrock Mantle review feedback

packages/catalog/scripts/generate-models.ts

@@ -14,6 +14,7 @@ import { discoverAuthStorage } from "@oh-my-pi/pi-ai/auth-broker/discover";
 import type { OAuthAccess } from "@oh-my-pi/pi-ai/auth-storage";
 import type { OAuthProvider } from "@oh-my-pi/pi-ai/oauth/types";
 import { getGitLabDuoModels } from "@oh-my-pi/pi-ai/providers/gitlab-duo";
+import { getProviderDefinition } from "@oh-my-pi/pi-ai/registry";
 import { $env } from "@oh-my-pi/pi-utils";
 import { ANTIGRAVITY_PRIMARY_ENDPOINT, fetchAntigravityDiscoveryModels } from "../src/discovery/antigravity";
 import { fetchCodexModels } from "../src/discovery/codex";
@@ -123,7 +124,10 @@ async function fetchProviderModelsFromCatalog(
 
 	try {
 		console.log(`Fetching models from ${descriptor.catalogDiscovery.label} model manager...`);
-		const managerOptions = descriptor.createModelManagerOptions({ apiKey });
+		const discoveryConfig = { apiKey };
+		const preparedConfig =
+			getProviderDefinition(descriptor.providerId)?.prepareModelDiscovery?.(discoveryConfig) ?? discoveryConfig;
+		const managerOptions = descriptor.createModelManagerOptions(preparedConfig);
 		const manager = createModelManager(managerOptions);
 		const result = await manager.refresh("online");
 		// `stale: true` means the dynamic fetch failed and the manager fell back
@@ -555,7 +559,8 @@ async function generateModels() {
 	// Seed Meta's documented Muse model so first-run selection does not depend on
 	// credentials or live discovery.
 	allModels.push(...META_MUSE_STATIC_MODELS);
-	// Bedrock Mantle has no catalog endpoint used by generation.
+	// Mantle's catalog endpoint is account/API-key scoped. Keep the generated
+	// bundle deterministic; authenticated runtime discovery may replace this seed.
 	allModels.push(...BEDROCK_MANTLE_STATIC_MODELS);
 	// Seed Sakana's documented Fugu models so the provider is usable when
 	// catalog generation has no live API key. If live `/v1/models` succeeds,