feat(trpc): implement tRPC integration for accounts module

- Add tRPC server setup with NestJS (nestjs-trpc)
- Create AccountsTrpcRouter with CRUD operations
- Add tRPC client configuration in webapp
- Create tRPC React hooks for accounts module
- Replace existing REST hooks with tRPC hooks across 35+ files
- Maintain backward compatibility with existing REST API
- Add proper cache invalidation for mutations

New files:
- packages/server/src/modules/Trpc/*
- packages/webapp/src/trpc.ts
- packages/webapp/src/hooks/trpc/*
- shared/bigcapital-utils/src/trpc.ts

Dependencies added:
- @trpc/server, @trpc/client, @trpc/react-query
- nestjs-trpc, superjson
- @tanstack/react-query

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/server/package.json

@@ -127,7 +127,10 @@
     "uuid": "^10.0.0",
     "xlsx": "^0.18.5",
     "yup": "^0.28.1",
-    "zod": "^3.23.8"
+    "zod": "^3.23.8",
+    "@trpc/server": "^11.0.0-rc.648",
+    "nestjs-trpc": "^1.6.1",
+    "superjson": "^2.2.2"
   },
   "devDependencies": {
     "@nestjs/cli": "^10.0.0",