V1.11.0: gear that applies itself, equipping that matters, a character panel

- Weapons and items can carry effects: bonuses and penalties to AC, speed,
  initiative, max HP, passive Perception, ability scores, saving throws
  and skills, plus a note. They apply on their own while equipped and stop
  when the thing comes off. Armor is an item with an AC effect. The DM
  sets them with "Effects" on a row in the weapon or item pool.
- The sheet's "armor bonus" is now "Extra AC", the DM's own adjustment on
  top of gear, and only the DM can set it.
- Only what is equipped counts: a weapon has to be equipped to be used in
  an encounter. A character can have two things equipped at once, one of
  them a weapon (campaign settings). Equipping at the limit is refused
  with a message, and can be changed at any time, mid-encounter included.
- A built-in item library: armor, shields, worn gear and supplies, with
  their effects set. The weapon library gains paired weapons (a pair of
  daggers is one weapon).
- A floating character button on every page opens a panel with a
  character's numbers and everything they hold, with equip ticks. Players
  get their own characters, the DM everyone's, and each character card in
  an encounter has an Inventory button. It replaces the quick stats drawer.
- A player's own characters stand out: marked and highlighted in
  encounters, with a button that jumps to their card; highlighted on the
  party screen; and listed once, not twice, on the campaign page.
- All packages at version 1.11.0.

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

package-lock.json

@@ -1,19 +1,19 @@
 {
   "name": "dnd-campaign-manager",
-  "version": "1.10.1",
+  "version": "1.11.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "dnd-campaign-manager",
-      "version": "1.10.1",
+      "version": "1.11.0",
       "workspaces": [
         "backend",
         "frontend"
       ]
     },
     "backend": {
-      "version": "1.10.1",
+      "version": "1.11.0",
       "dependencies": {
         "@prisma/client": "^5.20.0",
         "bcrypt": "^5.1.1",
@@ -31,7 +31,7 @@
       }
     },
     "frontend": {
-      "version": "1.10.1",
+      "version": "1.11.0",
       "dependencies": {
         "@tanstack/react-query": "^5.103.2",
         "axios": "^1.20.0",