fix(ollama): generate variants for Ollama reasoning models

Allow variants (low/medium/high) to be generated for Ollama models
that were previously blocked by the deepseek/minimax/glm/mistral/kimi
check in ProviderTransform.variants()

Author: Kory Boyd

packages/opencode/src/provider/transform.ts

@@ -345,8 +345,14 @@ export namespace ProviderTransform {
       id.includes("kimi") ||
       // TODO: Remove this after models.dev data is fixed to use "kimi-k2.5" instead of "k2p5"
       id.includes("k2p5")
-    )
+    ) {
+      // Skip variants for certain providers that need special handling in options()
+      // but allow variants for Ollama models since they use @ai-sdk/openai-compatible
+      if (model.providerID === "ollama") {
+        return Object.fromEntries(WIDELY_SUPPORTED_EFFORTS.map((effort) => [effort, { reasoningEffort: effort }]))
+      }
       return {}
+    }
 
     // see: https://docs.x.ai/docs/guides/reasoning#control-how-hard-the-model-thinks
     if (id.includes("grok") && id.includes("grok-3-mini")) {