Companion Buttons 1.1.0: pages in the ＋ picker, buttons chosen on the tile

The picker row (page list, Clear, Done) is gone. Each Companion page is now
its own ＋ entry, titled with the page's name, showing the whole page minus
page up/down. The grid icon switches the tile to choosing: click buttons to
take them out or put them back, click the icon again when done. The gear
holds one switch, Page layout (Companion's rows and columns, or packed).

- Tiles follow their page by Companion's page id and buttons by row/column,
  so inserted pages and re-imported pages keep showing.
- A tile remounted after a settings change asks GET /state for the snapshot
  the already-open stream sent, instead of waiting blank.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

module.json

@@ -1,9 +1,9 @@
 {
   "id": "companion-buttons",
   "name": "Companion Buttons",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "proddash": ">=1.10.0",
-  "description": "Any Companion button from any page, live as Companion draws it — for status and what's happening",
+  "description": "Companion pages and buttons, live as Companion draws them — for status and what's happening",
   "permissions": [
     {
       "kind": "local-network",
@@ -14,7 +14,7 @@
   "server": "server.js",
   "style": "style.css",
   "minSize": { "w": 1, "h": 1 },
-  "defaultSize": { "w": 3, "h": 3 },
+  "defaultSize": { "w": 6, "h": 4 },
   "configSchema": {
     "companion": {
       "type": "endpoint",
@@ -24,10 +24,16 @@
     }
   },
   "instanceSchema": {
-    "captions": {
+    "layout": {
       "type": "switch",
-      "label": "Captions",
-      "default": false
+      "label": "Page layout",
+      "default": true
+    },
+    "page": {
+      "type": "select",
+      "label": "Page",
+      "default": "",
+      "optionsRoute": "/page-options"
     }
   }
 }