📦 build(user-module): configure user module dependencies and build settings
- update tsconfig.json rootDir from "src" to "." for proper module resolution
- add workspace dependencies: @d8d/shared-crud, @d8d/shared-types, @d8d/shared-utils
- install production dependencies: bcrypt@^6.0.0, typeorm@^0.3.20, zod@^4.1.12
- add dev dependencies: @vitest/coverage-v8@^3.2.4, typescript@^5.8.3, vitest@^3.2.4