V1.25.0: the DM approves a level, each player takes their own

- "Level up..." beside Rest approves a level for any of the party at once;
  with XP tracked, those who have the XP start ticked
- Each player is told with a notice and picks for themselves in the checklist:
  class (multiclass), subclass, Boon, spells within the level's allowance,
  the weapon upgrade; a waiting level shows on the sheet and campaign page
- The DM sees who still has picks to make, and can finish or take back any
- Hit points on a level up can be rolled (campaign setting): by the site, or
  at the table and typed in with physical dice
- Toasts: notices that slide in over any page

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

package-lock.json

@@ -1,19 +1,19 @@
 {
   "name": "dnd-campaign-manager",
-  "version": "1.24.0",
+  "version": "1.25.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "dnd-campaign-manager",
-      "version": "1.24.0",
+      "version": "1.25.0",
       "workspaces": [
         "backend",
         "frontend"
       ]
     },
     "backend": {
-      "version": "1.24.0",
+      "version": "1.25.0",
       "dependencies": {
         "@prisma/adapter-pg": "^7.10.0",
         "@prisma/client": "^7.10.0",
@@ -33,7 +33,7 @@
       }
     },
     "frontend": {
-      "version": "1.24.0",
+      "version": "1.25.0",
       "dependencies": {
         "@tanstack/react-query": "^5.103.2",
         "axios": "^1.20.0",