Initial commit: mumh5, a modern Mumble client

Electron desktop app with a Svelte 5 interface for any Mumble server.

- Mumble protocol core: TLS, handshake, channels, users, text, plugin data,
  client-side pacing of Murmur's rate limits
- Voice: WebCodecs Opus over the TCP tunnel, voice activity, push to talk,
  always-on, devices, per-user volume and local mute
- Several servers at once, voice on one; server rail with icons and ordering
- Chat: channels, direct messages, side chat, file sharing through f0ckm,
  inline images without it, click-to-play YouTube
- Profiles with rich descriptions, registration, rename, nicknames,
  connection information and moderation menus
- Identity wizard, multiple identities, PKCS#12 import/export, desktop
  Mumble certificate import, certificate pinning and viewer
- Tray icon with voice state
- Unit, server and end-to-end tests against a real Murmur

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/lib/icons.ts

@@ -0,0 +1,30 @@
+// SVG path data (24x24 viewBox, square caps) shared by <Icon> and the tray icon
+export const ICON_PATHS: Record<string, string> = {
+  mic: 'M12 2a3 3 0 0 0-3 3v7a3 3 0 0 0 6 0V5a3 3 0 0 0-3-3zM19 10v2a7 7 0 0 1-14 0v-2M12 19v3',
+  'mic-off': 'M12 2a3 3 0 0 0-3 3v7a3 3 0 0 0 6 0V5a3 3 0 0 0-3-3zM19 10v2a7 7 0 0 1-14 0v-2M12 19v3M3 3l18 18',
+  headphones: 'M3 14v-2a9 9 0 0 1 18 0v2M21 14v7h-4v-7zM3 14v7h4v-7z',
+  'headphones-off': 'M3 14v-2a9 9 0 0 1 18 0v2M21 14v7h-4v-7zM3 14v7h4v-7zM3 3l18 18',
+  settings: 'M4 21v-7M4 10V3M12 21v-9M12 8V3M20 21v-5M20 12V3M1 14h6M9 8h6M17 16h6',
+  plus: 'M12 5v14M5 12h14',
+  paperclip: 'M21.4 11.1l-9.2 9.2a6 6 0 0 1-8.5-8.5l9.2-9.2a4 4 0 0 1 5.7 5.7l-9.2 9.2a2 2 0 0 1-2.8-2.8l8.5-8.5',
+  hash: 'M4 9h16M4 15h16M10 3L8 21M16 3l-2 18',
+  channel: 'M11 5L6 9H2v6h4l5 4zM15.5 8.5a5 5 0 0 1 0 7',
+  users: 'M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2M9 11a4 4 0 1 0 0-8 4 4 0 0 0 0 8zM23 21v-2a4 4 0 0 0-3-3.9M16 3.1a4 4 0 0 1 0 7.8',
+  menu: 'M3 6h18M3 12h18M3 18h18',
+  x: 'M18 6L6 18M6 6l12 12',
+  power: 'M18.4 6.6a9 9 0 1 1-12.8 0M12 2v10',
+  lock: 'M5 11h14v10H5zM8 11V7a4 4 0 0 1 8 0v4',
+  file: 'M14 2H6v20h12V8zM14 2v6h6',
+  send: 'M22 2L11 13M22 2l-7 20-4-9-9-4z',
+  message: 'M21 15H7l-4 4V3h18z',
+  trash: 'M3 6h18M8 6V3h8v3M19 6l-1 15H6L5 6',
+  server: 'M2 3h20v8H2zM2 13h20v8H2zM6 7h.01M6 17h.01',
+  shield: 'M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z',
+  download: 'M12 3v12M7 10l5 5 5-5M4 21h16',
+  list: 'M9 6h12M9 12h12M9 18h12M4 6h.01M4 12h.01M4 18h.01',
+  'list-ordered': 'M10 6h11M10 12h11M10 18h11M4 4v4M3 18h3l-3 3h3M3 10h2l-2 3h2',
+  link: 'M10 14a4 4 0 0 0 6 0l3-3a4 4 0 0 0-6-6l-1 1M14 10a4 4 0 0 0-6 0l-3 3a4 4 0 0 0 6 6l1-1',
+  image: 'M3 3h18v18H3zM8.5 10a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3zM21 15l-5-5L5 21',
+  code: 'M16 18l6-6-6-6M8 6l-6 6 6 6',
+  eraser: 'M20 20H7L3 16l10-10 7 7-6.5 7M6 11l7 7'
+};