feat: add camera switch, fix click event/dialog resize/map state sync

- fix(engine): adapt click handler to base engine array format data[0].url/ids
- feat(toolbar): add perspective/orthographic camera switch button with dynamic icon
- fix(dialog): clamp resize to container bounds to prevent overflow
- feat(demo): add auto-combine feature with robust URL parsing and validation
- fix(walk): close minimap on walk exit and sync map state between toolbar and walk panel
- fix(engine): correct MiniMap getstate() casing to match base engine API
- build: rebuild demo libs

demo/index.html

@@ -200,6 +200,7 @@
                 <button class="primary" onclick="loadModel()">加载模型</button>
                 <button onclick="switchModel()">切换模型</button>
                 <button onclick="loadCombinedModel()">组合模型</button>
+                <button onclick="openCombineDialog()">自动组合</button>
             </div>
             <div class="btn-container" style="margin-top: 8px;">
                 <button onclick="pauseRendering()">暂停渲染</button>
@@ -216,6 +217,19 @@
         <div id="app"></div>
     </main>
 
+    <!-- 自动组合弹窗 -->
+    <div id="combine-overlay" style="display:none; position:fixed; inset:0; background:rgba(0,0,0,.45); z-index:9999; display:none; justify-content:center; align-items:center;">
+        <div style="background:#fff; border-radius:10px; padding:24px; width:520px; max-width:90vw; box-shadow:0 8px 32px rgba(0,0,0,.18);">
+            <h3 style="margin:0 0 12px; font-size:1.1rem; color:#333;">自动组合加载</h3>
+            <p style="margin:0 0 10px; font-size:.85rem; color:#888;">请输入模型 URL，每行一个或用英文逗号分隔：</p>
+            <textarea id="combine-urls" rows="6" style="width:100%; padding:10px; font-size:.85rem; border:1px solid #ddd; border-radius:6px; resize:vertical; font-family:monospace;" placeholder="https://example.com/model1/&#10;https://example.com/model2/"></textarea>
+            <div style="display:flex; justify-content:flex-end; gap:8px; margin-top:14px;">
+                <button onclick="closeCombineDialog()" style="min-width:72px;">取消</button>
+                <button class="primary" onclick="confirmCombineLoad()" style="min-width:72px;">确定加载</button>
+            </div>
+        </div>
+    </div>
+
     <script>
         let engine = null;
         let isToolbarVisible = true;
@@ -577,6 +591,84 @@
                 }
             }
         }
+
+        // --- 自动组合加载 ---
+        function openCombineDialog() {
+            if (!engine || !engine.engine || !engine.engine.isInitialized()) {
+                alert('请先初始化 3D 引擎！');
+                return;
+            }
+            const overlay = document.getElementById('combine-overlay');
+            overlay.style.display = 'flex';
+        }
+
+        function closeCombineDialog() {
+            const overlay = document.getElementById('combine-overlay');
+            overlay.style.display = 'none';
+        }
+
+        function confirmCombineLoad() {
+            let raw = document.getElementById('combine-urls').value.trim();
+            if (!raw) {
+                alert('请输入至少一个模型 URL');
+                return;
+            }
+
+            // 1) 统一清洗：去除智能引号、零宽字符、BOM 等不可见字符
+            raw = raw
+                .replace(/[\u2018\u2019]/g, "'")   // “” → '
+                .replace(/[\u201C\u201D]/g, '"')   // “” → "
+                .replace(/[\u200B\uFEFF\u00A0]/g, '') // 零宽空格、BOM、不换行空格
+                .trim();
+
+            // 2) 尝试当 JSON 数组解析
+            let urls = [];
+            try {
+                const jsonStr = raw.replace(/'/g, '"');
+                const parsed = JSON.parse(jsonStr);
+                if (Array.isArray(parsed)) {
+                    urls = parsed.map(s => String(s).trim()).filter(Boolean);
+                }
+            } catch(e) {
+                // 3) JSON 失败，走分割逻辑
+                urls = raw.split(/[,;\n\r]+/)
+                    .map(s => s.trim().replace(/^['"|\[\]\s]+|['"|\[\]\s]+$/g, ''))
+                    .filter(Boolean);
+            }
+
+            // 4) 只保留 http/https 开头的合法 URL
+            urls = urls.filter(s => /^https?:\/\//i.test(s));
+
+            if (urls.length === 0) {
+                alert('未解析到有效的 URL，请确保以 http:// 或 https:// 开头');
+                return;
+            }
+
+            // 5) 逐个校验 URL 是否合法
+            for (let i = 0; i < urls.length; i++) {
+                try {
+                    new URL(urls[i]);
+                } catch(e) {
+                    alert('第 ' + (i+1) + ' 个 URL 无效:\n' + urls[i] + '\n\n请检查是否包含特殊字符');
+                    console.error('❌ 无效 URL，原始字符:', JSON.stringify(urls[i]));
+                    return;
+                }
+            }
+
+            try {
+                engine.engine.loadModel(urls, {
+                    position: [0, 0, 0],
+                    rotation: [0, 0, 0],
+                    scale: [1, 1, 1]
+                });
+                console.log('✅ 自动组合加载已发送:', urls);
+                closeCombineDialog();
+                document.getElementById('combine-urls').value = '';
+            } catch (error) {
+                console.error('❌ 自动组合加载错误:', error);
+            }
+        }
+
     </script>
 </body>