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>

bruno/Health Check.bru

@@ -0,0 +1,20 @@
+meta {
+  name: Health Check
+  type: http
+  seq: 1
+}
+
+get {
+  url: {{baseUrl}}/health
+  body: none
+  auth: none
+}
+
+assert {
+  res.status: eq 200
+  res.body.status: eq healthy
+}
+
+docs {
+  Health check endpoint to verify service is running.
+}