Allow passthrough for provider schemas (#1487)

Fixes #1472  > [!NOTE] > Switches `ProviderSettingSchema` union to `.passthrough()` variants to accept extra fields and avoid overlapping schema conflicts. > > - **Schemas**: > - **`src/lib/schemas.ts`**: Update `ProviderSettingSchema` to use `.passthrough()` on `AzureProviderSettingSchema`, `VertexProviderSettingSchema`, and `RegularProviderSettingSchema` so unknown fields are preserved and overlapping required fields don’t cause mis-matches. > > <sup>Written by [Cursor Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit 7afa4b83d713b9eb433d4cce28c7fee73cd7545b. This will update automatically on new commits. Configure [here](https://cursor.com/dashboard?tab=bugbot).</sup>

Allow passthrough for provider schemas (#1487)
e318ec25 · Will Chen · GitHub · 916d6fdb · e318ec25
--- a/src/lib/schemas.ts
+++ b/src/lib/schemas.ts
@@ -114,9 +114,16 @@ export const VertexProviderSettingSchema = z.object({
 export const ProviderSettingSchema = z.union([
  // Must use more specific type first!
  // Zod uses the first type that matches.
-  AzureProviderSettingSchema,
-  VertexProviderSettingSchema,
-  RegularProviderSettingSchema,
+  //
+  // We use passthrough as a hack because Azure and Vertex
+  // will match together since their required fields overlap.
+  //
+  // In addition, there may be future provider settings that
+  // we may want to preserve (e.g. user downgrades to older version)
+  // so doing passthrough keeps these extra fields.
+  AzureProviderSettingSchema.passthrough(),
+  VertexProviderSettingSchema.passthrough(),
+  RegularProviderSettingSchema.passthrough(),
 ]);

 /**