feat(analytics): add Analytics Maturity metric to ManaScore and custom event tracking to 4 apps

Add new "Analytics Maturity" extended metric to ManaScore schema with 5 checks:
pageViewTracking, customEvents, authTracking, landingTracking, publicDashboard.
Populate analytics data across all 20 audit files. Document the metric in about.md.

Add app-specific Umami custom event helpers and integrate tracking into:
- ManaCore: 13 events (nav, onboarding, dashboard widgets, credits, settings)
- Presi: 12 events (deck/slide CRUD, presentation start/exit, sharing)
- Zitare: 9 events (quotes, favorites, categories, search, lists, language)
- Mukke: 12 events (upload, library, playlists, projects, editor export)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/mukke/apps/web/src/routes/(app)/editor/[id]/+page.svelte

@@ -4,6 +4,7 @@
 	import { onMount, onDestroy } from 'svelte';
 	import { authStore } from '$lib/stores/auth.svelte';
 	import { projectStore } from '$lib/stores/project.svelte';
+	import { MukkeEvents } from '@manacore/shared-utils/analytics';
 	import { audioStore } from '$lib/stores/audio.svelte';
 	import { editorStore } from '$lib/stores/editor.svelte';
 	import { MARKER_COLORS } from '@mukke/shared';
@@ -226,6 +227,7 @@
 			if (!response.ok) throw new Error('Export failed');
 
 			const blob = await response.blob();
+			MukkeEvents.projectExported(format);
 			const url = URL.createObjectURL(blob);
 			const a = document.createElement('a');
 			a.href = url;

apps/mukke/apps/web/src/routes/(app)/library/+page.svelte

@@ -4,6 +4,7 @@
 	import { libraryStore } from '$lib/stores/library.svelte';
 	import { authStore } from '$lib/stores/auth.svelte';
 	import { playerStore } from '$lib/stores/player.svelte';
+	import { MukkeEvents } from '@manacore/shared-utils/analytics';
 	import SongEditor from '$lib/components/SongEditor.svelte';
 	import { ContextMenu, type ContextMenuItem } from '@manacore/shared-ui';
 	import type { Song } from '@mukke/shared';
@@ -109,7 +110,9 @@
 	async function handleToggleFavorite(id: string, e: Event) {
 		e.preventDefault();
 		e.stopPropagation();
+		const song = libraryStore.songs.find((s) => s.id === id);
 		await libraryStore.toggleFavorite(id);
+		MukkeEvents.songFavorited(!song?.favorite);
 	}
 
 	function handleEditSong(song: Song, e: Event) {
@@ -120,6 +123,7 @@
 
 	function handlePlaySong(song: Song, index: number) {
 		playerStore.playSong(song, libraryStore.songs, index);
+		MukkeEvents.songPlayed();
 	}
 
 	async function openInEditor(songId: string, e: Event) {

apps/mukke/apps/web/src/routes/(app)/playlists/+page.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import { onMount } from 'svelte';
 	import { playlistStore } from '$lib/stores/playlist.svelte';
+	import { MukkeEvents } from '@manacore/shared-utils/analytics';
 
 	let showCreateModal = $state(false);
 	let newName = $state('');
@@ -16,6 +17,7 @@
 		isCreating = true;
 		try {
 			await playlistStore.createPlaylist(newName.trim(), newDescription.trim() || undefined);
+			MukkeEvents.playlistCreated();
 			newName = '';
 			newDescription = '';
 			showCreateModal = false;
@@ -30,6 +32,7 @@
 		e.stopPropagation();
 		if (!confirm('Delete this playlist?')) return;
 		await playlistStore.deletePlaylist(id);
+		MukkeEvents.playlistDeleted();
 	}
 
 	function truncate(text: string, max: number): string {

apps/mukke/apps/web/src/routes/(app)/playlists/[id]/+page.svelte

@@ -3,6 +3,7 @@
 	import { page } from '$app/stores';
 	import { playlistStore } from '$lib/stores/playlist.svelte';
 	import { playerStore } from '$lib/stores/player.svelte';
+	import { MukkeEvents } from '@manacore/shared-utils/analytics';
 	import type { Song } from '@mukke/shared';
 
 	let isEditingName = $state(false);
@@ -32,6 +33,7 @@
 		const playlist = playlistStore.currentPlaylist;
 		if (!playlist || playlist.songs.length === 0) return;
 		playerStore.playQueue(playlist.songs, 0);
+		MukkeEvents.playlistPlayAll();
 	}
 
 	function handleShufflePlay() {
@@ -39,6 +41,7 @@
 		if (!playlist || playlist.songs.length === 0) return;
 		const shuffled = shuffleArray(playlist.songs);
 		playerStore.playQueue(shuffled, 0);
+		MukkeEvents.playlistShufflePlay();
 	}
 
 	function handlePlaySong(song: Song, index: number) {

apps/mukke/apps/web/src/routes/(app)/projects/+page.svelte

@@ -2,6 +2,7 @@
 	import { onMount } from 'svelte';
 	import { goto } from '$app/navigation';
 	import { projectStore } from '$lib/stores/project.svelte';
+	import { MukkeEvents } from '@manacore/shared-utils/analytics';
 
 	let showCreateModal = $state(false);
 	let newProjectTitle = $state('');
@@ -18,6 +19,7 @@
 		isCreating = true;
 		try {
 			const project = await projectStore.createProject(newProjectTitle, newProjectDescription);
+			MukkeEvents.projectCreated();
 			showCreateModal = false;
 			newProjectTitle = '';
 			newProjectDescription = '';
@@ -32,6 +34,7 @@
 		e.preventDefault();
 		if (confirm('Are you sure you want to delete this project?')) {
 			await projectStore.deleteProject(id);
+			MukkeEvents.projectDeleted();
 		}
 	}
 

apps/mukke/apps/web/src/routes/(app)/upload/+page.svelte

@@ -1,5 +1,6 @@
 <script lang="ts">
 	import { libraryStore } from '$lib/stores/library.svelte';
+	import { MukkeEvents } from '@manacore/shared-utils/analytics';
 
 	interface UploadFile {
 		file: File;
@@ -90,6 +91,7 @@
 			files[index].status = 'uploaded';
 			files[index].progress = 100;
 			files[index].songId = song.id;
+			MukkeEvents.songUploaded();
 
 			// Auto-extract ID3 tags from the uploaded file
 			try {
@@ -107,6 +109,7 @@
 		} catch (e) {
 			files[index].status = 'error';
 			files[index].error = e instanceof Error ? e.message : 'Upload failed';
+			MukkeEvents.songUploadFailed();
 		}
 	}