feat: add DisclaimerModal component to assessment averages switch

src/interface/components/DisclaimerModal.svelte

@@ -0,0 +1,73 @@
+<script lang="ts">
+  import { fade } from 'svelte/transition';
+  import { animate } from 'motion';
+
+  let { onConfirm, onCancel, title, message } = $props<{
+    onConfirm: () => void;
+    onCancel: () => void;
+    title: string;
+    message: string;
+  }>();
+
+  let modalElement: HTMLElement;
+
+  $effect(() => {
+    if (modalElement) {
+      animate(
+        modalElement,
+        { scale: [0.9, 1], opacity: [0, 1] },
+        {
+          type: 'spring',
+          stiffness: 300,
+          damping: 25
+        }
+      );
+    }
+  });
+</script>
+
+<div 
+  class="flex fixed inset-0 z-[10000] justify-center items-center bg-black/50" 
+  style="position: fixed; top: 0; left: 0; right: 0; bottom: 0;"
+  onclick={(e) => {
+    if (e.target === e.currentTarget) onCancel();
+  }} 
+  onkeydown={(e) => {
+    if (e.key === 'Escape') onCancel();
+  }} 
+  role="button" 
+  tabindex="-1" 
+  transition:fade={{ duration: 150 }}
+>
+  <!-- svelte-ignore a11y_no_static_element_interactions -->
+  <div
+    bind:this={modalElement}
+    class="p-4 mx-4 w-full max-w-md bg-white rounded-2xl shadow-2xl dark:bg-zinc-800" 
+    onclick={(e) => e.stopPropagation()}
+    onkeydown={(e) => e.stopPropagation()}
+  >
+    <h2 class="mb-3 text-xl font-bold text-gray-900 dark:text-white">
+      {title}
+    </h2>
+    
+    <div class="mb-6 text-lg text-gray-700 whitespace-pre-line dark:text-gray-300">
+      {message}
+    </div>
+
+    <div class="flex gap-3 justify-end">
+      <button
+        onclick={onCancel}
+        class="px-4 py-2 text-sm font-medium text-gray-700 bg-gray-100 rounded-lg transition-colors hover:bg-gray-200 dark:bg-zinc-700 dark:text-gray-200 dark:hover:bg-zinc-600"
+      >
+        Cancel
+      </button>
+      <button
+        onclick={onConfirm}
+        class="px-4 py-2 text-sm font-medium text-white bg-green-600 rounded-lg shadow-inner transition-colors hover:bg-green-700 dark:bg-green-500 dark:hover:bg-green-600"
+      >
+        Enable
+      </button>
+    </div>
+  </div>
+</div>
+

src/interface/pages/settings.svelte

@@ -15,9 +15,12 @@
   //import { OpenMinecraftServerPopup } from "@/seqta/utils/Openers/OpenMinecraftServerPopup";
 
   import ColourPicker from "../components/ColourPicker.svelte";
+  import DisclaimerModal from "../components/DisclaimerModal.svelte";
   import { settingsPopup } from "../hooks/SettingsPopup";
 
   let devModeSequence = "";
+  let showDisclaimerModal = $state(false);
+  let disclaimerCallbacks = $state<{ onConfirm: () => void, onCancel: () => void } | null>(null);
 
   const handleDevModeToggle = () => {
     const handleKeyDown = (event: KeyboardEvent) => {
@@ -63,6 +66,11 @@
   let { standalone } = $props<{ standalone?: boolean }>();
   let showColourPicker = $state<boolean>(false);
 
+  const showDisclaimer = (onConfirm: () => void, onCancel: () => void) => {
+    disclaimerCallbacks = { onConfirm, onCancel };
+    showDisclaimerModal = true;
+  };
+
   onMount(async () => {
     settingsPopup.addListener(() => {
       showColourPicker = false;
@@ -271,7 +279,7 @@
         {
           title: "Settings",
           Content: Settings,
-          props: { showColourPicker: openColourPicker },
+          props: { showColourPicker: openColourPicker, showDisclaimer },
         },
         { title: "Shortcuts", Content: Shortcuts },
         { title: "Themes", Content: Theme },
@@ -287,3 +295,27 @@
     />
   {/if}
 </div>
+
+{#if showDisclaimerModal && disclaimerCallbacks}
+  <DisclaimerModal
+    title="Assessment Averages Disclaimer"
+    message="This feature calculates a simple average of your assessment grades. It does not take into account:
+• Assessment weightings
+• Different grading scales
+• Other factors used in official reports
+
+The displayed average may be inaccurate compared to your actual marks found in reports.
+
+Do you want to enable this feature?"
+    onConfirm={() => {
+      disclaimerCallbacks?.onConfirm();
+      showDisclaimerModal = false;
+      disclaimerCallbacks = null;
+    }}
+    onCancel={() => {
+      disclaimerCallbacks?.onCancel();
+      showDisclaimerModal = false;
+      disclaimerCallbacks = null;
+    }}
+  />
+{/if}

src/interface/pages/settings/general.svelte

@@ -92,7 +92,10 @@
     loadPluginSettings();
   })
 
-  const { showColourPicker } = $props<{ showColourPicker: () => void }>();
+  const { showColourPicker, showDisclaimer } = $props<{ 
+    showColourPicker: () => void;
+    showDisclaimer: (onConfirm: () => void, onCancel: () => void) => void;
+  }>();
 </script>
 
 {#snippet Setting({ title, description, Component, props }: SettingsList) }
@@ -224,7 +227,20 @@
             <div>
               <Switch
                 state={pluginSettingsValues[plugin.pluginId]?.enabled ?? true}
-                onChange={(value) => updatePluginSetting(plugin.pluginId, 'enabled', value)}
+                onChange={async (value) => {
+                  if (plugin.pluginId === 'assessments-average' && value === true) {
+                    showDisclaimer(
+                      async () => {
+                        await updatePluginSetting(plugin.pluginId, 'enabled', true);
+                      },
+                      () => {
+                        // Do nothing on cancel
+                      }
+                    );
+                    return;
+                  }
+                  await updatePluginSetting(plugin.pluginId, 'enabled', value);
+                }}
               />
             </div>
           </div>