feat(node-editor, blueprint): add group box and math/logic nodes (#438)

* feat(node-editor, blueprint): add group box and math/logic nodes

node-editor:
- Add visual group box for organizing nodes
- Dynamic bounds calculation based on node pin counts
- Groups auto-resize to wrap contained nodes
- Dragging group header moves all nodes together

blueprint:
- Add comprehensive math nodes (modulo, power, sqrt, trig, etc.)
- Add logic nodes (comparison, boolean, select)

docs:
- Update nodes.md with new math and logic nodes
- Add group feature documentation to editor-guide.md

* chore: remove unused debug and test scripts

Remove FBX animation debug scripts that are no longer needed:
- analyze-fbx, debug-*, test-*, verify-*, check-*, compare-*, trace-*, simple-fbx-test

Remove unused kill-dev-server.js from editor-app

packages/editor/editor-app/scripts/kill-dev-server.js

@@ -1,47 +0,0 @@
-/**
- * 清理开发服务器进程
- * 用于 Windows 平台自动清理残留的 Vite 进程
- */
-
-import { execSync } from 'child_process';
-
-const PORT = 5173;
-
-try {
-    console.log(`正在查找占用端口 ${PORT} 的进程...`);
-
-    // Windows 命令
-    const result = execSync(`netstat -ano | findstr :${PORT}`, { encoding: 'utf8' });
-
-    // 解析 PID
-    const lines = result.split('\n');
-    const pids = new Set();
-
-    for (const line of lines) {
-        if (line.includes('LISTENING')) {
-            const parts = line.trim().split(/\s+/);
-            const pid = parts[parts.length - 1];
-            if (pid && pid !== '0') {
-                pids.add(pid);
-            }
-        }
-    }
-
-    if (pids.size === 0) {
-        console.log(`✓ 端口 ${PORT} 未被占用`);
-    } else {
-        console.log(`发现 ${pids.size} 个进程占用端口 ${PORT}`);
-        for (const pid of pids) {
-            try {
-                // Windows 需要使用 /F /PID 而不是 //F //PID
-                execSync(`taskkill /F /PID ${pid}`, { encoding: 'utf8', stdio: 'ignore' });
-                console.log(`✓ 已终止进程 PID: ${pid}`);
-            } catch (e) {
-                console.log(`✗ 无法终止进程 PID: ${pid}`);
-            }
-        }
-    }
-} catch (error) {
-    // 如果 netstat 没有找到结果，会抛出错误，这是正常的
-    console.log(`✓ 端口 ${PORT} 未被占用`);
-}