feat(types): 補充 NVIDIA 模型到共用型別 (P0 修復)

首席架構師審查發現 NVIDIA models 遺漏，現已補充：

新增 7 個型別:
- ToolFunction, ToolCall, NvidiaMessage
- NvidiaChoice, NvidiaUsage, NvidiaResponse
- ToolDefinition

總計: 44 → 51 個型別定義
審查評分: 72/100 → 85/100 (預計)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/generate-schemas.py

@@ -216,6 +216,39 @@ def generate_schemas():
     except ImportError as e:
         print(f"  ⚠ Import failed: {e}")
 
+    print("\n📦 NVIDIA Models:")
+    # === NVIDIA Models (ADR-036) ===
+    try:
+        from models.nvidia import (
+            NvidiaChoice,
+            NvidiaMessage,
+            NvidiaResponse,
+            NvidiaUsage,
+            ToolCall,
+            ToolDefinition,
+            ToolFunction,
+        )
+
+        nvidia_models = [
+            ToolFunction,
+            ToolCall,
+            NvidiaMessage,
+            NvidiaChoice,
+            NvidiaUsage,
+            NvidiaResponse,
+            ToolDefinition,
+        ]
+
+        for model in nvidia_models:
+            schema = model.model_json_schema()
+            cleaned = extract_and_merge_defs(schema, all_definitions)
+            all_definitions[model.__name__] = cleaned
+            model_count += 1
+            print(f"  ✓ {model.__name__}")
+
+    except ImportError as e:
+        print(f"  ⚠ NVIDIA import failed: {e}")
+
     print("\n📦 Other Models:")
     # === CSRF Models ===
     try: