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>

Tools/godot-mcp-pro/server/src/utils/load-instructions.ts

@@ -0,0 +1,45 @@
+import { readFileSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+import { dirname, resolve } from "node:path";
+
+const FALLBACK_INSTRUCTIONS = `# Godot MCP Pro
+
+You have access to the Godot MCP Pro toolset for building and testing Godot games through the editor.
+
+## Critical rules
+- Tools are split into **editor** (always available) and **runtime** (require \`play_scene\` first).
+- Never edit \`project.godot\` directly — use \`set_project_setting\`.
+- For input simulation, use short \`simulate_key\` durations (0.3–0.5s), not integer seconds.
+- \`execute_editor_script\` / \`execute_game_script\` must be valid GDScript; use \`_mcp_print(value)\` to return output.
+
+## Getting oriented
+- \`get_project_info\` — project overview
+- \`get_scene_tree\` — current scene structure
+- For a full usage guide, see \`instructions/CLAUDE.md\` in the installed package.
+`;
+
+/**
+ * Loads CLAUDE.md from the shipped `instructions/` directory so Claude has
+ * the essential usage guide from message #1 of every session. Falls back to
+ * a terse built-in string if the file can't be located (e.g. custom layouts).
+ */
+export function loadInstructions(): string {
+  const here = dirname(fileURLToPath(import.meta.url));
+
+  const candidates = [
+    resolve(here, "../../instructions/CLAUDE.md"),
+    resolve(here, "../../../instructions/CLAUDE.md"),
+    resolve(here, "../../../../instructions/CLAUDE.md"),
+  ];
+
+  for (const path of candidates) {
+    try {
+      const content = readFileSync(path, "utf8");
+      if (content.trim().length > 0) return content;
+    } catch {
+      // try next
+    }
+  }
+
+  return FALLBACK_INSTRUCTIONS;
+}