AIX: OpenAI: update wiretypes to allow for Mistral/NS

src/modules/aix/server/dispatch/wiretypes/openai.wiretypes.ts

@@ -45,7 +45,11 @@ export namespace OpenAIWire_ContentParts {
   /// Content parts - Output
 
   const PredictedFunctionCall_schema = z.object({
-    type: z.literal('function'),
+    /*
+     * .optional: for Mistral non-streaming generation - this is fairly weak, and does not let the discriminator work;
+     *            please remove this hack asap.
+     */
+    type: z.literal('function').optional(),
     id: z.string(),
     function: z.object({
       name: z.string(),
@@ -90,8 +94,9 @@ export namespace OpenAIWire_Messages {
     role: z.literal('assistant'),
     /**
      * The contents of the assistant message. Required unless tool_calls or function_call is specified.
+     * .optional: when parsing a non-streaming message with just a FC, the content can be missing
      */
-    content: z.string().nullable(),
+    content: z.string().optional().nullable(),
     /**
      * The tool calls generated by the model, such as function calls.
      */
@@ -242,6 +247,7 @@ export namespace OpenAIWire_API_Chat_Completions {
     // Extensions //
     '', // [LocalAI] bad response from LocalAI which breaks the parser
     'COMPLETE', // [OpenRouter->Command-R+]
+    'STOP', // [OpenRouter->Gemini]
     'end_turn', // [OpenRouter->Anthropic]
     'eos', // [OpenRouter->Phind]
     'error', // [OpenRouter] their network error
@@ -266,7 +272,7 @@ export namespace OpenAIWire_API_Chat_Completions {
   });
 
   export type Response = z.infer<typeof Response_schema>;
-  const Response_schema = z.object({
+  export const Response_schema = z.object({
     object: z.literal('chat.completion'),
     id: z.string(), // A unique identifier for the chat completion.
 
@@ -281,6 +287,10 @@ export namespace OpenAIWire_API_Chat_Completions {
     system_fingerprint: z.string().optional() // The backend configuration that the model runs with.
       .nullable(), // [Grow, undocumented OpenAI] fingerprint is null on some OpenAI examples too
     // service_tier: z.unknown().optional(),
+
+    // undocumented messages
+    error: z.any().optional(),
+    warning: z.unknown().optional(),
   });
 
   /// Streaming Response