feat: Production-Ready Full-Stack Audit & Bug Fixes

[asmitakumarisingh191200]

Overview

This PR completes the 11-phase BugForge production-readiness assessment. It introduces critical security patches, mitigates severe performance bottlenecks, resolves UI rendering loops, and integrates automated testing—all while preserving the original system architecture.

Key Improvements

🛡️ Security Fixes

• Patched Mass Assignment: Secured the updateTask endpoint by enforcing strict Zod parsing (taskSchema.partial().parse()) so attackers can no longer arbitrarily modify protected database fields.
• Eliminated XSS: Removed dangerouslySetInnerHTML from the frontend project description renderer to prevent cross-site scripting vulnerabilities.
• Secured Authorizations: Explicitly enforced project ownership checks, responding with 403 Forbidden rather than misleading 404 Not Found errors.

⚡ Performance & Logic

• Resolved Dashboard N+1 Query: Refactored the iterative countDocuments database loop into a single, highly efficient $in aggregate query.
• Added Database Indexes: Injected the { assignee: 1, status: 1, dueDate: 1 } index into the Task model to eliminate full collection scans on dashboard queries.
• Fixed Infinite Render Loop: Removed a defective, mutually dependent renderVersion React state from the dashboard overview that was crashing the browser tab.

🧪 Testing & Code Quality

• Integration Tests: Added a comprehensive supertest & mongodb-memory-server testing suite for authentication endpoints, verifying proper JWT issuance, login handling, and 409 conflict checks.
• Formatting & Linting: Ran pnpm lint and pnpm format across the entire monorepo, resolving all unused variables and imports.

Verification

• Frontend & Backend builds succeed (pnpm run build)
• Automated tests pass (pnpm test)
• Linter passes with 0 warnings (pnpm lint)
• Docker Compose starts correctly
• Final Engineering Report & AI Usage Report provided

[Aman-ydav]

I think this may not align with the assignment requirements. The instructions specifically mention not creating a public GitHub repository and instead submitting a Git bundle or ZIP with the .git directory while maintaining local commit history. It may be worth reviewing the submission guidelines again.