chore: 重命名 Tools/godot-mcp-pro-v1.15.1 → Tools/godot-mcp-pro，更新 .mcp.json

- 去掉版本号后缀，路径更稳定（后续更新工具不必再改 .mcp.json）
- .mcp.json 指向新路径 server/build/index.js
- server 依赖已 npm install 就绪；node_modules 由 .gitignore 忽略，未入库

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.mcp.json

@@ -2,7 +2,7 @@
   "mcpServers": {
     "godot-mcp-pro": {
       "command": "node",
-      "args": ["${CLAUDE_PROJECT_DIR:-.}/Tools/godot-mcp-pro-v1.15.1/server/build/index.js"],
+      "args": ["${CLAUDE_PROJECT_DIR:-.}/Tools/godot-mcp-pro/server/build/index.js"],
       "env": {
         "GODOT_MCP_PORT": "6505"
       }