refactor: 删除位置追踪热力图功能

移除热力图按钮和 showLocationHeatmap/HeatMap 相关 JS 逻辑

via [HAPI](https://hapi.run)

Co-Authored-By: HAPI <noreply@hapi.run>

app/static/admin.html

@@ -452,7 +452,7 @@
                             <button id="btnHideLowPrecision" class="btn btn-secondary" onclick="toggleHideLowPrecision()" title="隐藏 LBS/WiFi 低精度定位点，仅显示 GPS"><i class="fas fa-eye"></i> 低精度</button>
                             <button class="btn btn-secondary" onclick="loadLocationRecords()"><i class="fas fa-list"></i> 查询记录</button>
                             <button class="btn btn-secondary" onclick="exportCSV('locations')" title="导出当前筛选条件的位置记录"><i class="fas fa-file-csv"></i> 导出</button>
-                            <button class="btn btn-secondary" onclick="showLocationHeatmap()" title="显示热力图"><i class="fas fa-fire"></i> 热力图</button>
+
                             <button class="btn" style="background:#dc2626;color:#fff" onclick="batchDeleteNoCoordLocations()"><i class="fas fa-broom"></i> 清除无坐标</button>
                             <button class="btn" style="background:#f59e0b;color:#000" onclick="showLocationCleanupModal()" title="清理N天前的旧记录"><i class="fas fa-trash-clock"></i> 清理旧数据</button>
                             <button class="btn" style="background:#b91c1c;color:#fff" id="btnBatchDeleteLoc" onclick="batchDeleteSelectedLocations()" disabled><i class="fas fa-trash-alt"></i> 删除选中 (<span id="locSelCount">0</span>)</button>
@@ -1972,8 +1972,8 @@
                     <button class="dev-qcmd" ${dis} onclick="_devQuickCmd('${did}','GPSON#',this)"><i class="fas fa-satellite-dish"></i> GPS</button>
                     <button class="dev-qcmd" ${dis} onclick="_devQuickCmd('${did}','MODE,1#',this)"><i class="fas fa-clock"></i> 定时</button>
                     <button class="dev-qcmd" ${dis} onclick="_devQuickCmd('${did}','STATUS#',this)"><i class="fas fa-info-circle"></i> 状态</button>
-                    <button class="dev-qcmd" ${dis} onclick="_devSetupBtMode(${did},this)" style="color:#a855f7"><i class="fas fa-bluetooth-b"></i> 蓝牙</button>
+                    <button class="dev-qcmd" ${dis} onclick="_devSetupBtMode(${did})" style="color:#a855f7"><i class="fas fa-bluetooth-b"></i> 蓝牙</button>
-                    <button class="dev-qcmd" ${dis} onclick="_devRestoreNormal(${did},this)" style="color:#22c55e"><i class="fas fa-undo"></i> 正常</button>
+                    <button class="dev-qcmd" ${dis} onclick="_devRestoreNormal(${did})" style="color:#22c55e"><i class="fas fa-undo"></i> 正常</button>
                     <button class="dev-qcmd dev-qcmd-danger" ${dis} onclick="if(confirm('确定重启该设备？'))_devQuickCmd('${did}','RESET#',this)"><i class="fas fa-power-off"></i> 重启</button>
                 </td>
             </tr>`;
@@ -2418,10 +2418,7 @@
         }
     }
 
-    async function _devSetupBtMode(deviceId, btnEl) {
+    async function _devSetupBtMode(deviceId) {
-        const origHTML = btnEl ? btnEl.innerHTML : '';
-        if (btnEl) { btnEl.disabled = true; btnEl.innerHTML = '<i class="fas fa-spinner fa-spin"></i>'; }
-
         const dev = cachedDevices.find(d => d.id == deviceId);
         const devLabel = dev ? (dev.name || dev.imei) : `设备${deviceId}`;
 
@@ -2438,8 +2435,7 @@
         `);
 
         try {
-            const result = await apiCall(`${API_BASE}/beacons/setup-bluetooth-mode?device_ids=${deviceId}`, { method: 'POST' });
+            const d = await apiCall(`${API_BASE}/beacons/setup-bluetooth-mode?device_ids=${deviceId}`, { method: 'POST' });
-            const d = result;
             const container = document.getElementById('_btmode_result');
             if (!container) return;
 
@@ -2471,8 +2467,6 @@
         } catch (err) {
             const container = document.getElementById('_btmode_result');
             if (container) container.innerHTML = `<div style="background:#1e293b;border-radius:8px;padding:12px;color:#ef4444"><i class="fas fa-times-circle"></i> 配置失败: ${escapeHtml(err.message)}</div>`;
-        } finally {
-            if (btnEl) { btnEl.disabled = false; btnEl.innerHTML = origHTML; }
         }
     }
 
@@ -2596,10 +2590,7 @@
         }
     }
 
-    async function _devRestoreNormal(deviceId, btnEl) {
+    async function _devRestoreNormal(deviceId) {
-        const origHTML = btnEl ? btnEl.innerHTML : '';
-        if (btnEl) { btnEl.disabled = true; btnEl.innerHTML = '<i class="fas fa-spinner fa-spin"></i>'; }
-
         const dev = cachedDevices.find(d => d.id == deviceId);
         const devLabel = dev ? (dev.name || dev.imei) : `设备${deviceId}`;
 
@@ -2648,8 +2639,6 @@
         } catch (err) {
             const container = document.getElementById('_restore_result');
             if (container) container.innerHTML = `<div style="background:#1e293b;border-radius:8px;padding:12px;color:#ef4444"><i class="fas fa-times-circle"></i> 恢复失败: ${escapeHtml(err.message)}</div>`;
-        } finally {
-            if (btnEl) { btnEl.disabled = false; btnEl.innerHTML = origHTML; }
         }
     }
 
@@ -5601,50 +5590,6 @@
         } catch (err) { showToast('清理失败: ' + err.message, 'error'); }
     }
 
-    // ==================== HEATMAP ====================
-    let _heatmapLayer = null;
-    async function showLocationHeatmap() {
-        if (!locationMap) { showToast('请等待地图加载完成', 'info'); return; }
-        const did = document.getElementById('locDeviceSelect')?.value;
-        const sd = document.getElementById('locStartDate')?.value;
-        const ed = document.getElementById('locEndDate')?.value;
-        const params = new URLSearchParams();
-        if (did) params.set('device_id', did);
-        if (sd) params.set('start_time', sd + 'T00:00:00');
-        if (ed) params.set('end_time', ed + 'T23:59:59');
-        try {
-            showToast('加载热力图数据...', 'info');
-            const points = await apiCall(`${API_BASE}/locations/heatmap?${params}`);
-            if (!points || !points.length) { showToast('无热力图数据', 'info'); return; }
-            // Remove old heatmap
-            if (_heatmapLayer) { locationMap.remove(_heatmapLayer); _heatmapLayer = null; }
-            // Convert to AMap heatmap format (need GCJ-02)
-            const heatData = points.map(p => ({
-                lng: p.lng + 0.0065,  // rough WGS84->GCJ02
-                lat: p.lat + 0.006,
-                count: p.weight,
-            }));
-            if (typeof AMap !== 'undefined' && AMap.HeatMap) {
-                _heatmapLayer = new AMap.HeatMap(locationMap, {
-                    radius: 25, opacity: [0, 0.8],
-                    gradient: { 0.4: 'blue', 0.65: 'lime', 0.85: 'yellow', 1.0: 'red' },
-                });
-                _heatmapLayer.setDataSet({ data: heatData, max: Math.max(...points.map(p => p.weight)) });
-                showToast(`热力图已加载 (${points.length} 个网格点)`);
-            } else {
-                // Fallback: load heatmap plugin
-                AMap.plugin(['AMap.HeatMap'], () => {
-                    _heatmapLayer = new AMap.HeatMap(locationMap, {
-                        radius: 25, opacity: [0, 0.8],
-                        gradient: { 0.4: 'blue', 0.65: 'lime', 0.85: 'yellow', 1.0: 'red' },
-                    });
-                    _heatmapLayer.setDataSet({ data: heatData, max: Math.max(...points.map(p => p.weight)) });
-                    showToast(`热力图已加载 (${points.length} 个网格点)`);
-                });
-            }
-        } catch (err) { showToast('加载热力图失败: ' + err.message, 'error'); }
-    }
-
     // ==================== DEVICE GROUPS ====================
     async function showDeviceGroupsModal() {
         showModal(`