diff --git a/web/history_sidebar.js b/web/history_sidebar.js
index 02f097d..8482eae 100644
--- a/web/history_sidebar.js
+++ b/web/history_sidebar.js
@@ -20,10 +20,8 @@ function ensureStylesheet() {
   document.head.appendChild(link);
 }
 
-const VIEWERJS_VERSION = "1.11.6";
-const VIEWERJS_BASE_URL = `https://cdn.jsdelivr.net/npm/viewerjs@${VIEWERJS_VERSION}/dist`;
-const VIEWERJS_CSS_URL = `${VIEWERJS_BASE_URL}/viewer.min.css`;
-const VIEWERJS_CORE_URL = `${VIEWERJS_BASE_URL}/viewer.min.js`;
+const VIEWER_CSS_URL = new URL("./vendor/viewerjs/viewer.min.css", import.meta.url).href;
+const VIEWER_JS_URL = new URL("./vendor/viewerjs/viewer.min.js", import.meta.url).href;
 
 const externalAssetPromises = new Map();
 
@@ -109,8 +107,8 @@ let viewerLoader = null;
 async function ensureViewer() {
   if (viewerLoader) return viewerLoader;
   viewerLoader = (async () => {
-    await ensureExternalStylesheet(VIEWERJS_CSS_URL);
-    await ensureExternalScript(VIEWERJS_CORE_URL);
+    await ensureExternalStylesheet(VIEWER_CSS_URL);
+    await ensureExternalScript(VIEWER_JS_URL);
     if (typeof window.Viewer !== "function") {
       throw new Error("Viewer global was not found after loading assets.");
     }
diff --git a/web/vendor/viewerjs/LICENSE-viewerjs b/web/vendor/viewerjs/LICENSE-viewerjs
new file mode 100644
index 0000000..4ca99ac
--- /dev/null
+++ b/web/vendor/viewerjs/LICENSE-viewerjs
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright 2015-present Chen Fengyuan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/web/vendor/viewerjs/viewer.min.css b/web/vendor/viewerjs/viewer.min.css
new file mode 100644
index 0000000..d793d1f
--- /dev/null
+++ b/web/vendor/viewerjs/viewer.min.css
@@ -0,0 +1,9 @@
+/*!
+ * Viewer.js v1.11.7
+ * https://fengyuanchen.github.io/viewerjs
+ *
+ * Copyright 2015-present Chen Fengyuan
+ * Released under the MIT license
+ *
+ * Date: 2024-11-24T04:32:14.526Z
+ */.viewer-close:before,.viewer-flip-horizontal:before,.viewer-flip-vertical:before,.viewer-fullscreen-exit:before,.viewer-fullscreen:before,.viewer-next:before,.viewer-one-to-one:before,.viewer-play:before,.viewer-prev:before,.viewer-reset:before,.viewer-rotate-left:before,.viewer-rotate-right:before,.viewer-zoom-in:before,.viewer-zoom-out:before{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 560 40'%3E%3Cpath fill='%23fff' d='M49.6 17.9h20.2v3.9H49.6zm123.1 2 10.9-11 2.7 2.8-8.2 8.2 8.2 8.2-2.7 2.7-10.9-10.9zm94 0-10.8-11-2.7 2.8 8.1 8.2-8.1 8.2 2.7 2.7 10.8-10.9zM212 9.3l20.1 10.6L212 30.5V9.3zm161.5 4.6-7.2 6 7.2 5.9v-4h12.4v4l7.3-5.9-7.3-6v4h-12.4v-4zm40.2 12.3 5.9 7.2 5.9-7.2h-4V13.6h4l-5.9-7.3-5.9 7.3h4v12.6h-4zm35.9-16.5h6.3v2h-4.3V16h-2V9.7Zm14 0h6.2V16h-2v-4.3h-4.2v-2Zm6.2 14V30h-6.2v-2h4.2v-4.3h2Zm-14 6.3h-6.2v-6.3h2v4.4h4.3v2Zm-438 .1v-8.3H9.6v-3.9h8.2V9.7h3.9v8.2h8.1v3.9h-8.1v8.3h-3.9zM93.6 9.7h-5.8v3.9h2V30h3.8V9.7zm16.1 0h-5.8v3.9h1.9V30h3.9V9.7zm-11.9 4.1h3.9v3.9h-3.9zm0 8.2h3.9v3.9h-3.9zm244.6-11.7 7.2 5.9-7.2 6v-3.6c-5.4-.4-7.8.8-8.7 2.8-.8 1.7-1.8 4.9 2.8 8.2-6.3-2-7.5-6.9-6-11.3 1.6-4.4 8-5 11.9-4.9v-3.1Zm147.2 13.4h6.3V30h-2v-4.3h-4.3v-2zm14 6.3v-6.3h6.2v2h-4.3V30h-1.9zm6.2-14h-6.2V9.7h1.9V14h4.3v2zm-13.9 0h-6.3v-2h4.3V9.7h2V16zm33.3 12.5 8.6-8.6-8.6-8.7 1.9-1.9 8.6 8.7 8.6-8.7 1.9 1.9-8.6 8.7 8.6 8.6-1.9 2-8.6-8.7-8.6 8.7-1.9-2zM297 10.3l-7.1 5.9 7.2 6v-3.6c5.3-.4 7.7.8 8.7 2.8.8 1.7 1.7 4.9-2.9 8.2 6.3-2 7.5-6.9 6-11.3-1.6-4.4-7.9-5-11.8-4.9v-3.1Zm-157.3-.6c2.3 0 4.4.7 6 2l2.5-3 1.9 9.2h-9.3l2.6-3.1a6.2 6.2 0 0 0-9.9 5.1c0 3.4 2.8 6.3 6.2 6.3 2.8 0 5.1-1.9 6-4.4h4c-1 4.7-5 8.3-10 8.3a10 10 0 0 1-10-10.2 10 10 0 0 1 10-10.2Z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-size:280px;color:transparent;display:block;font-size:0;height:20px;line-height:0;width:20px}.viewer-zoom-in:before{background-position:0 0;content:"Zoom In"}.viewer-zoom-out:before{background-position:-20px 0;content:"Zoom Out"}.viewer-one-to-one:before{background-position:-40px 0;content:"One to One"}.viewer-reset:before{background-position:-60px 0;content:"Reset"}.viewer-prev:before{background-position:-80px 0;content:"Previous"}.viewer-play:before{background-position:-100px 0;content:"Play"}.viewer-next:before{background-position:-120px 0;content:"Next"}.viewer-rotate-left:before{background-position:-140px 0;content:"Rotate Left"}.viewer-rotate-right:before{background-position:-160px 0;content:"Rotate Right"}.viewer-flip-horizontal:before{background-position:-180px 0;content:"Flip Horizontal"}.viewer-flip-vertical:before{background-position:-200px 0;content:"Flip Vertical"}.viewer-fullscreen:before{background-position:-220px 0;content:"Enter Full Screen"}.viewer-fullscreen-exit:before{background-position:-240px 0;content:"Exit Full Screen"}.viewer-close:before{background-position:-260px 0;content:"Close"}.viewer-container{-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;bottom:0;direction:ltr;font-size:0;left:0;line-height:0;overflow:hidden;position:absolute;right:0;top:0;-ms-touch-action:none;touch-action:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.viewer-container ::-moz-selection,.viewer-container::-moz-selection{background-color:transparent}.viewer-container ::selection,.viewer-container::selection{background-color:transparent}.viewer-container:focus{outline:0}.viewer-container img{display:block;height:auto;max-height:none!important;max-width:none!important;min-height:0!important;min-width:0!important;width:100%}.viewer-canvas{bottom:0;left:0;overflow:hidden;position:absolute;right:0;top:0}.viewer-canvas>img{height:auto;margin:15px auto;max-width:90%!important;width:auto}.viewer-footer{bottom:0;left:0;overflow:hidden;position:absolute;right:0;text-align:center}.viewer-navbar{background-color:rgba(0,0,0,.5);overflow:hidden}.viewer-list{box-sizing:content-box;height:50px;margin:0;overflow:hidden;padding:1px 0}.viewer-list>li{color:transparent;cursor:pointer;float:left;font-size:0;height:50px;line-height:0;opacity:.5;overflow:hidden;transition:opacity .15s;width:30px}.viewer-list>li:focus,.viewer-list>li:hover{opacity:.75}.viewer-list>li:focus{outline:0}.viewer-list>li+li{margin-left:1px}.viewer-list>.viewer-loading{position:relative}.viewer-list>.viewer-loading:after{border-width:2px;height:20px;margin-left:-10px;margin-top:-10px;width:20px}.viewer-list>.viewer-active,.viewer-list>.viewer-active:focus,.viewer-list>.viewer-active:hover{opacity:1}.viewer-player{background-color:#000;bottom:0;cursor:none;display:none;right:0;z-index:1}.viewer-player,.viewer-player>img{left:0;position:absolute;top:0}.viewer-toolbar>ul{display:inline-block;margin:0 auto 5px;overflow:hidden;padding:6px 3px}.viewer-toolbar>ul>li{background-color:rgba(0,0,0,.5);border-radius:50%;cursor:pointer;float:left;height:24px;overflow:hidden;transition:background-color .15s;width:24px}.viewer-toolbar>ul>li:focus,.viewer-toolbar>ul>li:hover{background-color:rgba(0,0,0,.8)}.viewer-toolbar>ul>li:focus{box-shadow:0 0 3px #fff;outline:0;position:relative;z-index:1}.viewer-toolbar>ul>li:before{margin:2px}.viewer-toolbar>ul>li+li{margin-left:1px}.viewer-toolbar>ul>.viewer-small{height:18px;margin-bottom:3px;margin-top:3px;width:18px}.viewer-toolbar>ul>.viewer-small:before{margin:-1px}.viewer-toolbar>ul>.viewer-large{height:30px;margin-bottom:-3px;margin-top:-3px;width:30px}.viewer-toolbar>ul>.viewer-large:before{margin:5px}.viewer-tooltip{background-color:rgba(0,0,0,.8);border-radius:10px;color:#fff;display:none;font-size:12px;height:20px;left:50%;line-height:20px;margin-left:-25px;margin-top:-10px;position:absolute;text-align:center;top:50%;width:50px}.viewer-title{color:#ccc;display:inline-block;font-size:12px;line-height:1.2;margin:5px 5%;max-width:90%;min-height:14px;opacity:.8;overflow:hidden;text-overflow:ellipsis;transition:opacity .15s;white-space:nowrap}.viewer-title:hover{opacity:1}.viewer-button{-webkit-app-region:no-drag;background-color:rgba(0,0,0,.5);border-radius:50%;cursor:pointer;height:80px;overflow:hidden;position:absolute;right:-40px;top:-40px;transition:background-color .15s;width:80px}.viewer-button:focus,.viewer-button:hover{background-color:rgba(0,0,0,.8)}.viewer-button:focus{box-shadow:0 0 3px #fff;outline:0}.viewer-button:before{bottom:15px;left:15px;position:absolute}.viewer-fixed{position:fixed}.viewer-open{overflow:hidden}.viewer-show{display:block}.viewer-hide{display:none}.viewer-backdrop{background-color:rgba(0,0,0,.5)}.viewer-invisible{visibility:hidden}.viewer-move{cursor:move;cursor:grab}.viewer-fade{opacity:0}.viewer-in{opacity:1}.viewer-transition{transition:all .3s}@keyframes viewer-spinner{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.viewer-loading:after{animation:viewer-spinner 1s linear infinite;border:4px solid hsla(0,0%,100%,.1);border-left-color:hsla(0,0%,100%,.5);border-radius:50%;content:"";display:inline-block;height:40px;left:50%;margin-left:-20px;margin-top:-20px;position:absolute;top:50%;width:40px;z-index:1}@media (max-width:767px){.viewer-hide-xs-down{display:none}}@media (max-width:991px){.viewer-hide-sm-down{display:none}}@media (max-width:1199px){.viewer-hide-md-down{display:none}}
\ No newline at end of file
diff --git a/web/vendor/viewerjs/viewer.min.js b/web/vendor/viewerjs/viewer.min.js
new file mode 100644
index 0000000..695f8e7
--- /dev/null
+++ b/web/vendor/viewerjs/viewer.min.js
@@ -0,0 +1,10 @@
+/*!
+ * Viewer.js v1.11.7
+ * https://fengyuanchen.github.io/viewerjs
+ *
+ * Copyright 2015-present Chen Fengyuan
+ * Released under the MIT license
+ *
+ * Date: 2024-11-24T04:32:19.116Z
+ */
+((t,e)=>{"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).Viewer=e()})(this,function(){function n(t,e){for(var i=0;i<e.length;i++){var n=e[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,r(n.key),n)}}function s(e,t){var i,n=Object.keys(e);return Object.getOwnPropertySymbols&&(i=Object.getOwnPropertySymbols(e),t&&(i=i.filter(function(t){return Object.getOwnPropertyDescriptor(e,t).enumerable})),n.push.apply(n,i)),n}function P(n){for(var t=1;t<arguments.length;t++){var o=null!=arguments[t]?arguments[t]:{};t%2?s(Object(o),!0).forEach(function(t){var e,i;e=n,i=o[t=t],(t=r(t))in 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