Add subspace-tv FastAPI service with Unraid deployment

Includes FastAPI application with device authentication, Docker configuration,
Bruno API tests, and git-based deployment scripts for Unraid.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.env.example

@@ -0,0 +1,16 @@
+# Server
+HOST=0.0.0.0
+PORT=8000
+DEBUG=false
+
+# Authorization file path
+AUTHORIZATION_FILE=/app/config/authorized_devices.json
+
+# Privileged Configuration (returned to authorized devices)
+CONFIG_URL=https://your-server.example.com
+CONFIG_PORT=8000
+CONFIG_TIMEZONE=America/New_York
+CONFIG_UPDATE_INTERVAL=3600
+
+# CORS
+CORS_ORIGINS=["*"]