init: initial commit

- ticker / QR ad overlay / break slide graphics (1920×1080) with all
  geometry derived from one shared module (src/shared/obs-geometry.mjs)
- OBS scene-collection generator (scripts/generate-obs-scenes.mjs) and a
  read-only in-dashboard setup verifier, both driven by the same module
- en/sr dashboard i18n selected via bundle config; configschema.json with
  neutral first-run defaults seeded from optional branding config
- install.sh / systemd user service / update.sh for venue deployment
- reference OBS scene collection + profile from a real venue as fixtures

nodemon.json

@@ -0,0 +1,16 @@
+{
+	"watch": ["src/extension/*", "src/types/*"],
+	"exec": "npm run build:extension && node ../../index.js",
+	"ext": "js,ts,json,yaml",
+	"delay": 500,
+	"ignoreRoot": [
+		".git",
+		"node_modules",
+		".nyc_output",
+		".parcel-cache",
+		"coverage",
+		"extension",
+		"graphics",
+		"dashboard"
+	]
+}