This PR breaks the large web and player bootstrap files into smaller modules with clearer ownership.

Web changes:

Split shared helpers, bootstrap logic, route groups, and upload-sync behavior out of web.js.
Kept web.js focused on wiring and server startup.
Fixed screen playlist reassignment so changing a screen’s playlist now triggers a refresh.
Fixed single-slide playlist refresh behavior so updates do not get stuck behind the current slide.
Player changes:

Split websocket/runtime handling into runtime.js.
Split playlist assembly and revision hashing into playlist.js.
Split onboarding and player HTTP routes into dedicated modules.
Split render utilities and template loading into render-helpers.js.
Kept player.js mostly as startup/orchestration.
Validation:

Rebuilt both services with Docker Compose.
Smoke-checked web and player routes after the refactor.
Verified get_errors was clean on the touched modules.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pulse-signage",
-  "version": "1.1.5",
+  "version": "1.4.0",
   "private": false,
   "description": "Pulse Signage application with MySQL and media uploads",
   "repository": {
@@ -16,11 +16,13 @@
     "dev:player": "nodemon -r dotenv/config src/player.js"
   },
   "dependencies": {
+    "bootstrap-icons": "1.11.3",
     "dotenv": "^17.4.2",
     "express": "^4.21.2",
     "handlebars": "^4.7.8",
     "multer": "^1.4.5-lts.1",
     "mysql2": "^3.14.3",
+    "qrcode": "^1.5.4",
     "ws": "^8.21.0"
   },
   "devDependencies": {