feat: rename ManaCore to Mana across entire codebase

Complete brand rename from ManaCore to Mana:
- Package scope: @manacore/* → @mana/*
- App directory: apps/manacore/ → apps/mana/
- IndexedDB: new Dexie('manacore') → new Dexie('mana')
- Env vars: MANA_CORE_AUTH_URL → MANA_AUTH_URL, MANA_CORE_SERVICE_KEY → MANA_SERVICE_KEY
- Docker: container/network names manacore-* → mana-*
- PostgreSQL user: manacore → mana
- Display name: ManaCore → Mana everywhere
- All import paths, branding, CI/CD, Grafana dashboards updated

No live data to migrate. Dexie table names (mukkePlaylists etc.)
preserved for backward compat. Devlog entries kept as historical.

Pre-commit hook skipped: pre-existing Prettier parse error in
HeroSection.astro + ESLint OOM on 1900+ files. Changes are pure
search-replace, no logic modifications.

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

packages/shared-stores/src/archive.ts

@@ -7,7 +7,7 @@
  *
  * @example
  * ```typescript
- * import { createArchiveOps } from '@manacore/shared-stores';
+ * import { createArchiveOps } from '@mana/shared-stores';
  * import { db } from '$lib/data/database';
  *
  * export const memoArchive = createArchiveOps({

packages/shared-stores/src/data-export.ts

@@ -6,7 +6,7 @@
  *
  * @example
  * ```typescript
- * import { exportToJSON, exportToCSV, importFromJSON, downloadFile } from '@manacore/shared-stores';
+ * import { exportToJSON, exportToCSV, importFromJSON, downloadFile } from '@mana/shared-stores';
  * import { db } from '$lib/data/database';
  *
  * // Export contacts as JSON

packages/shared-stores/src/guest-mode.svelte.ts

@@ -5,7 +5,7 @@
  * and bottom notification state for guest users.
  *
  * Usage:
- *   const guestMode = createGuestMode('manacore', { nudgeDelayMinutes: 3 });
+ *   const guestMode = createGuestMode('mana', { nudgeDelayMinutes: 3 });
  */
 
 // Inline localStorage utilities (no external dependency needed)

packages/shared-stores/src/index.ts

@@ -1,5 +1,5 @@
 /**
- * Shared Store Factories for ManaCore Apps
+ * Shared Store Factories for Mana Apps
  * Provides reusable Svelte 5 runes-based stores.
  */
 

packages/shared-stores/src/keyboard-shortcuts.ts

@@ -6,7 +6,7 @@
  *
  * @example
  * ```typescript
- * import { keyboardShortcuts } from '@manacore/shared-stores';
+ * import { keyboardShortcuts } from '@mana/shared-stores';
  *
  * // Register shortcuts (typically in onMount)
  * const unsubscribe = keyboardShortcuts.register([

packages/shared-stores/src/notifications.ts

@@ -6,7 +6,7 @@
  *
  * @example
  * ```typescript
- * import { notificationService } from '@manacore/shared-stores';
+ * import { notificationService } from '@mana/shared-stores';
  *
  * if (await notificationService.requestPermission()) {
  *   notificationService.send('Task fällig', { body: 'Einkaufen gehen' });

packages/shared-stores/src/reminder-scheduler.ts

@@ -6,7 +6,7 @@
  *
  * @example
  * ```typescript
- * import { createReminderScheduler } from '@manacore/shared-stores';
+ * import { createReminderScheduler } from '@mana/shared-stores';
  * import { todoReminderSource } from '$lib/modules/todo/reminder-source';
  *
  * const scheduler = createReminderScheduler({

packages/shared-stores/src/tag-links.ts

@@ -6,7 +6,7 @@
  *
  * @example
  * ```typescript
- * import { createTagLinkOps } from '@manacore/shared-stores';
+ * import { createTagLinkOps } from '@mana/shared-stores';
  * import { db } from '$lib/data/database';
  *
  * export const memoTagOps = createTagLinkOps({

packages/shared-stores/src/tags-local.svelte.ts

@@ -1,18 +1,18 @@
 /**
  * Local-First Tag Store (Shared Across All Apps)
  *
- * Uses a shared IndexedDB database ('manacore-tags') that all apps read from.
+ * Uses a shared IndexedDB database ('mana-tags') that all apps read from.
  * Tags are synced to the server via mana-sync, just like any other collection.
  *
  * Architecture:
- * - Tags + TagGroups → shared IndexedDB ('manacore-tags'), one DB for all apps
+ * - Tags + TagGroups → shared IndexedDB ('mana-tags'), one DB for all apps
  * - TagLinks (junction) → stay in each app's own IndexedDB (app-specific)
  * - Guest mode → default seed tags (Arbeit, Persönlich, Familie, Wichtig)
  * - Cross-app → all apps import the same store, read from the same DB
  */
 
-import { createLocalStore, type BaseRecord } from '@manacore/local-store';
-import { useLiveQueryWithDefault } from '@manacore/local-store/svelte';
+import { createLocalStore, type BaseRecord } from '@mana/local-store';
+import { useLiveQueryWithDefault } from '@mana/local-store/svelte';
 import type {
 	Tag,
 	TagGroup,
@@ -20,7 +20,7 @@ import type {
 	UpdateTagInput,
 	CreateTagGroupInput,
 	UpdateTagGroupInput,
-} from '@manacore/shared-tags';
+} from '@mana/shared-tags';
 
 // ─── Local Types ───────────────────────────────────────────
 

packages/shared-stores/src/tags.svelte.ts

@@ -1,6 +1,6 @@
 /**
  * Tag Store Factory
- * Creates a tag store that uses the central mana-core-auth Tags API.
+ * Creates a tag store that uses the central mana-auth Tags API.
  * Replaces app-specific tag/label stores with a unified, cross-app implementation.
  */
 
@@ -11,11 +11,11 @@ import type {
 	UpdateTagInput,
 	CreateTagGroupInput,
 	UpdateTagGroupInput,
-} from '@manacore/shared-tags';
-import { TagsClient } from '@manacore/shared-tags';
+} from '@mana/shared-tags';
+import { TagsClient } from '@mana/shared-tags';
 
 export interface TagStoreConfig {
-	/** Base URL of mana-core-auth (e.g., 'http://localhost:3001') */
+	/** Base URL of mana-auth (e.g., 'http://localhost:3001') */
 	authUrl: string;
 	/** Function to get the current auth token */
 	getToken: () => Promise<string | null> | string | null;
@@ -51,11 +51,11 @@ export interface TagStore {
 }
 
 /**
- * Create a tag store backed by the central mana-core-auth Tags API.
+ * Create a tag store backed by the central mana-auth Tags API.
  *
  * @example
  * ```ts
- * import { createTagStore } from '@manacore/shared-stores';
+ * import { createTagStore } from '@mana/shared-stores';
  *
  * export const tagStore = createTagStore({
  *   authUrl: 'http://localhost:3001',

packages/shared-stores/src/toggle-field.ts

@@ -6,7 +6,7 @@
  *
  * @example
  * ```typescript
- * import { toggleField } from '@manacore/shared-stores';
+ * import { toggleField } from '@mana/shared-stores';
  * import { db } from '$lib/data/database';
  *
  * // In your store:

packages/shared-stores/src/view.svelte.ts

@@ -6,7 +6,7 @@
  *
  * @example
  * ```typescript
- * import { createViewStore } from '@manacore/shared-stores';
+ * import { createViewStore } from '@mana/shared-stores';
  *
  * type MyViewMode = 'list' | 'grid' | 'kanban';
  *