Merge main via the stage-display branch: data dir, installer, versioning

Adopts the new contract: the manifest declares "proddash": ">=1.2.0"
(this module's admin device picker needs the optionsRoute select support
this branch adds), module version 1.2.0, and the shell version bumps
1.1.0 → 1.2.0 for that admin capability. The optionsRoute paragraph
merged into the guide's new schema section cleanly.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

modules/propresenter-timers/module.json

@@ -2,17 +2,27 @@
   "id": "propresenter-timers",
   "name": "Timers",
   "version": "1.2.0",
+  "proddash": ">=1.2.0",
   "description": "Live ProPresenter timers and LTC timecode",
   "client": "client.js",
   "server": "server.js",
   "style": "style.css",
-  "minSize": { "w": 2, "h": 1 },
-  "defaultSize": { "w": 4, "h": 2 },
+  "minSize": {
+    "w": 2,
+    "h": 1
+  },
+  "defaultSize": {
+    "w": 4,
+    "h": 2
+  },
   "configSchema": {
     "propresenter": {
       "type": "endpoint",
       "label": "ProPresenter",
-      "default": { "host": "", "port": 1025 }
+      "default": {
+        "host": "",
+        "port": 1025
+      }
     },
     "password": {
       "type": "password",