fix: update opus alias to point to opus 4.5

- opus → claude-opus-4-5-20251101 (latest)
- opus-4.1 → claude-opus-4-1-20250805 (previous)

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src/models.json

@@ -20,19 +20,19 @@
   },
   {
     "id": "opus",
-    "handle": "anthropic/claude-opus-4-1-20250805",
-    "label": "Claude Opus 4.1",
-    "description": "Anthropic's previous version of Opus",
-    "updateArgs": { "context_window": 180000 }
-  },
-  {
-    "id": "opus-4.5",
     "handle": "anthropic/claude-opus-4-5-20251101",
     "label": "Claude Opus 4.5",
     "description": "Anthropic's newest flagship Opus 4.5 model",
     "isFeatured": true,
     "updateArgs": { "context_window": 180000 }
   },
+  {
+    "id": "opus-4.1",
+    "handle": "anthropic/claude-opus-4-1-20250805",
+    "label": "Claude Opus 4.1",
+    "description": "Anthropic's previous version of Opus",
+    "updateArgs": { "context_window": 180000 }
+  },
   {
     "id": "haiku",
     "handle": "anthropic/claude-haiku-4-5-20251001",