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-ui/src/navigation/Navbar.svelte

@@ -2,7 +2,7 @@
 	import type { Snippet } from 'svelte';
 	import type { NavItem } from './types';
 	import NavLink from './NavLink.svelte';
-	import { List, X } from '@manacore/shared-icons';
+	import { List, X } from '@mana/shared-icons';
 
 	interface Props {
 		/** Navigation items to display */

packages/shared-ui/src/navigation/PillDropdown.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
 	import type { Snippet } from 'svelte';
 	import type { PillDropdownItem } from './types';
-	import { Columns } from '@manacore/shared-icons';
+	import { Columns } from '@mana/shared-icons';
 
 	interface Props {
 		items: PillDropdownItem[];

packages/shared-ui/src/navigation/PillNavigation.svelte

@@ -76,7 +76,7 @@
 		User,
 		Users,
 		Waveform,
-	} from '@manacore/shared-icons';
+	} from '@mana/shared-icons';
 
 	// Map icon names to Phosphor components
 	const phosphorIcons: Record<string, any> = {

packages/shared-ui/src/navigation/PillTabGroup.svelte

@@ -16,7 +16,7 @@
 		MagnifyingGlass,
 		CheckSquare,
 		Funnel,
-	} from '@manacore/shared-icons';
+	} from '@mana/shared-icons';
 
 	// Map icon names to Phosphor components
 	const phosphorIcons: Record<string, any> = {

packages/shared-ui/src/navigation/PillTagSelector.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
 	import type { Snippet } from 'svelte';
-	import { Tag, X, Plus, CaretDown } from '@manacore/shared-icons';
+	import { Tag, X, Plus, CaretDown } from '@mana/shared-icons';
 
 	export interface TagItem {
 		id: string;

packages/shared-ui/src/navigation/PillTimeRangeSelector.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import { CaretDown, Clock } from '@manacore/shared-icons';
+	import { CaretDown, Clock } from '@mana/shared-icons';
 
 	// Portal action - moves element to body to escape stacking contexts
 	function portal(node: HTMLElement) {

packages/shared-ui/src/navigation/PillViewSwitcher.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
 	import { tick } from 'svelte';
-	import { CalendarBlank, List, GridFour, ClipboardText, ListChecks } from '@manacore/shared-icons';
+	import { CalendarBlank, List, GridFour, ClipboardText, ListChecks } from '@mana/shared-icons';
 
 	export interface ViewOption {
 		/** Unique identifier */

packages/shared-ui/src/navigation/Sidebar.svelte

@@ -2,7 +2,7 @@
 	import type { Snippet } from 'svelte';
 	import type { NavItem } from './types';
 	import NavLink from './NavLink.svelte';
-	import { CaretLeft, List, Moon, SignOut, Sun } from '@manacore/shared-icons';
+	import { CaretLeft, List, Moon, SignOut, Sun } from '@mana/shared-icons';
 
 	interface Props {
 		/** Navigation items to display */

packages/shared-ui/src/navigation/SidebarSection.svelte

@@ -24,7 +24,7 @@
 	import type { NavItem } from './types';
 	import NavLink from './NavLink.svelte';
 	import { Text } from '../atoms';
-	import { CaretDown } from '@manacore/shared-icons';
+	import { CaretDown } from '@mana/shared-icons';
 
 	interface Props {
 		/** Section title (hidden when minimized) */

packages/shared-ui/src/navigation/TagStrip.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
 	import { goto } from '$app/navigation';
-	import { Tag, Plus, X } from '@manacore/shared-icons';
+	import { Tag, Plus, X } from '@mana/shared-icons';
 	import { dragSource } from '../dnd/drag-source';
 	import { passiveDropZone } from '../dnd/passive-drop';
 	import type { DragPayload } from '../dnd/types';

packages/shared-ui/src/navigation/expandable-toolbar/ExpandableToolbar.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
 	import { slide } from 'svelte/transition';
 	import type { Snippet } from 'svelte';
-	import { SlidersHorizontal } from '@manacore/shared-icons';
+	import { SlidersHorizontal } from '@mana/shared-icons';
 
 	interface Props {
 		/** Whether the toolbar is collapsed */