fix: add Claude model ID normalization to AIUI proxy in ISO build

Sync MODEL_MAP from deploy script to ISO build's inline claude-api-proxy.
Maps short model names (claude-sonnet-4) to full API IDs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

image-recipe/build-auto-installer-iso.sh

@@ -2123,6 +2123,17 @@ class Handler(http.server.BaseHTTPRequestHandler):
         except: data = {}
         if "max_tokens" not in data: data["max_tokens"] = 8096
         for f in ["webSearch","web_search"]: data.pop(f, None)
+        # Normalize model IDs — map short/dotted names to full API model IDs
+        MODEL_MAP = {
+            "claude-haiku-4.5": "claude-haiku-4-5-20251001",
+            "claude-haiku-4-5": "claude-haiku-4-5-20251001",
+            "claude-sonnet-4": "claude-sonnet-4-20250514",
+            "claude-sonnet-4.5": "claude-sonnet-4-5-20250514",
+            "claude-sonnet-4-5": "claude-sonnet-4-5-20250514",
+            "claude-opus-4": "claude-opus-4-20250514",
+        }
+        m = data.get("model", "")
+        if m in MODEL_MAP: data["model"] = MODEL_MAP[m]
         body = json.dumps(data).encode()
         headers = {"Content-Type":"application/json","x-api-key":API_KEY,"anthropic-version":"2023-06-01","anthropic-dangerous-direct-browser-access":"true"}
         for h in ["anthropic-version","anthropic-beta"]: