Implement complete inventory system with equipment database

Features:
- HP Control component with damage/heal/direct modes (mobile-optimized)
- Conditions system with PF2e condition database
- Equipment database with 5,482 items from PF2e (weapons, armor, equipment)
- AddItemModal with search, category filters, and pagination
- Bulk tracking with encumbered/overburdened status display
- Item management (add, remove, toggle equipped)

Backend:
- Equipment module with search/filter endpoints
- Prisma migration for equipment detail fields
- Equipment seed script importing from JSON data files
- Extended Equipment model (damage, hands, AC, etc.)

Frontend:
- New components: HpControl, AddConditionModal, AddItemModal
- Improved character sheet with tabbed interface
- API methods for equipment search and item management

Documentation:
- CLAUDE.md with project philosophy and architecture decisions

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

server/package.json

@@ -8,8 +8,13 @@
   "scripts": {
     "build": "nest build",
     "db:generate": "prisma generate",
-    "db:push": "prisma db push",
+    "db:migrate:dev": "prisma migrate dev",
+    "db:migrate:deploy": "prisma migrate deploy",
+    "db:migrate:reset": "prisma migrate reset",
+    "db:migrate:status": "prisma migrate status",
     "db:studio": "prisma studio",
+    "db:seed": "tsx prisma/seed.ts",
+    "db:seed:equipment": "tsx prisma/seed-equipment.ts",
     "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
     "start": "nest start",
     "start:dev": "nest start --watch",
@@ -73,6 +78,7 @@
     "ts-loader": "^9.5.2",
     "ts-node": "^10.9.2",
     "tsconfig-paths": "^4.2.0",
+    "tsx": "^4.21.0",
     "typescript": "^5.7.3",
     "typescript-eslint": "^8.20.0"
   },