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/Config - Missing Header.bru

@@ -0,0 +1,23 @@
+meta {
+  name: Config - Missing Header
+  type: http
+  seq: 4
+}
+
+get {
+  url: {{baseUrl}}/api/v1/config
+  body: none
+  auth: none
+}
+
+assert {
+  res.status: eq 400
+  res.body.detail: eq X-Password header is required
+}
+
+docs {
+  Attempt to get configuration without X-Password header.
+
+  This request intentionally omits the required X-Password header.
+  Expected response is 400 Bad Request with error message.
+}