Initial commit: Tonemark PWA

Tonemark is a SvelteKit PWA for transcribing YouTube videos, audio
and video files, and microphone recordings using a local Whisper backend.

Features:
- Dark glassmorphic UI with electric-lime accent (5 switchable themes)
- Rail nav (desktop) / tab bar (mobile) layout
- Drop zone, YouTube URL input, and live audio recording inputs
- Audio mode waveform cards (none / standard / aggressive / auto)
- Real-time transcription progress with animated waveform
- Job queue with SSE streaming updates
- Push notifications on job completion
- PWA with native SvelteKit service worker
- SRT / TXT / MD / JSON transcript downloads

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.env.example

@@ -0,0 +1,20 @@
+# URL of the whisper-rtx2080 server (must be accessible from this app)
+WHISPER_URL=http://localhost:8080
+
+# Path to the docker-compose.yml for whisper-rtx2080 (used to auto-start)
+WHISPER_COMPOSE_FILE=/home/user/Sources/whisper-rtx2080/docker-compose.yml
+
+# Base URL of THIS app, reachable from inside the whisper Docker container
+# Use your host IP (not localhost) if whisper runs in Docker
+WEBHOOK_BASE_URL=http://192.168.1.x:3000
+
+# Directory to write transcript output files
+OUTPUT_DIR=/home/user/transcripts
+
+# VAPID keys for Web Push — generate with: npx web-push generate-vapid-keys
+VAPID_PUBLIC_KEY=
+VAPID_PRIVATE_KEY=
+VAPID_SUBJECT=mailto:your@email.com
+
+# Server port (for adapter-node)
+PORT=3000