We completed Trust Phase 2, significantly enhancing the security and reliability of Lotta Supply. A major focus was hardening the API, closing several cross-tenant data leak vulnerabilities in conversation endpoints. We implemented comprehensive org-scoping and access controls, preventing unauthorized access and data modification. These fixes were accompanied by extensive testing to ensure robust protection against potential exploits. Specifically, we addressed issues related to report-linked read access, dual-key injection vulnerabilities, and IDOR vulnerabilities in message contexts. Also, we shored up the access controls on conversation creation and deletion.

We've also bolstered our automated testing coverage, adding a substantial suite of new tests. This includes integration tests for previously untested routes, such as themes, report media, report images, drive, and share functionalities. Additionally, we've increased coverage for existing routes, including organizations, conversations, report files/projects, and search. Finally, we've added browser hardening with new Playwright tests covering authentication, project upload, chat-with-context, and share link functionalities.

Beyond security enhancements, we've also hardened our asynchronous data processing pipeline. We've implemented rigorous unit and integration tests for chunk generation, file parsing, embedding services, and vector search. These tests ensure the pipeline's robustness, accuracy, and efficiency in handling diverse data formats and complex operations.

Finally, we implemented several fixes based on code review feedback to improve code quality and prevent potential issues. This includes fail-closed guards, environment variable management, and improved error handling in our test helpers. These changes contribute to a more stable and maintainable codebase.