Feature/user onboarding fields

[0xDeon]

Summary

This PR implements the backend support for the new User Onboarding flow (Steps 3 & 4) and introduces a strict Git Scope-Lock system to enforce modifications only on explicitly allowed files during focused tasks.

Changes Implemented

1. User Entity Expansion (Onboarding)

Added the following fields to the User entity to support the Figma design:

• Onboarding 3 (Additional Info): country, interests, occupation, goals
• Onboarding 4 (Availability): availableHours, bio

All fields are implemented as nullable with appropriate types (simple-array for lists, text for bio) and fully decorated with typeorm and @nestjs/swagger decorators.

2. Update Logic

• Extended EditUserDto with validation (@IsOptional, @IsString, @IsArray).
• Updated UpdateUserService to map and save these new fields correctly.

3. devops: Git Scope-Lock System

Implemented a local governance tool to prevent out-of-scope commits.

• Config: .scope-lock.json defines the active task and allowed files.
• Enforcement: scripts/git-scope-check.js (Node.js) validates staged files against the allowlist.
• Automation: Git pre-commit hook automatically blocks violations.

Verification

• Entity: Verified new columns in TypeORM.
• DTO: Validation rules tested (all fields optional).
• Build: npm run build passes.
• Scope Enforcement: Verified pre-commit hook blocks invalid files and allows scoped files.

🔗 Related Issues

Closes #208

[phertyameen]

This is perfect enough!