Add pen and paper character sheet

[Noires]

Summary

• add a dedicated Pen & Paper tab to character view and character edit navigation
• add a compact dossier-style Pen & Paper sheet with a local dice gimmick
• persist and expose the extra sheet fields needed for the new view

Testing

• cd client && yarn eslint --ext .ts,.vue src/pages/Character.vue src/pages/EditCharacter.vue src/pages/EditCharacterPenAndPaper.vue src/components/character/CharacterPenAndPaper.vue src/router/routes.ts
• cd client && yarn build
• cd server && yarn build
• cd server && yarn eslint "apps/**/*.ts" "libs/**/*.ts" (fails due to pre-existing repo ESLint configuration issues: missing import/extensions / import/no-extraneous-dependencies rules across the codebase)