fix: remove 8 more unnecessary as any casts in opencode core (#22877)

packages/opencode/src/provider/sdk/copilot/responses/openai-responses-language-model.ts

@@ -354,7 +354,7 @@ export class OpenAIResponsesLanguageModel implements LanguageModelV3 {
         details: "flex processing is only available for o3, o4-mini, and gpt-5 models",
       })
       // Remove from args if not supported
-      delete (baseArgs as any).service_tier
+      baseArgs.service_tier = undefined
     }
 
     // Validate priority processing support
@@ -366,7 +366,7 @@ export class OpenAIResponsesLanguageModel implements LanguageModelV3 {
           "priority processing is only available for supported models (gpt-4, gpt-5, gpt-5-mini, o3, o4-mini) and requires Enterprise access. gpt-5-nano is not supported",
       })
       // Remove from args if not supported
-      delete (baseArgs as any).service_tier
+      baseArgs.service_tier = undefined
     }
 
     const {

packages/opencode/src/provider/transform.ts

@@ -193,7 +193,7 @@ function normalizeMessages(
             providerOptions: {
               ...msg.providerOptions,
               openaiCompatible: {
-                ...(msg.providerOptions as any)?.openaiCompatible,
+                ...msg.providerOptions?.openaiCompatible,
                 [field]: reasoningText,
               },
             },