openai/gpt-chat-latest → B (100:1)

Commit B introduces a substantial new URL canonicalization and traversal subsystem, including graph-based routing, parsing utilities, a graph builder with validation, integration into the module tree, and an extensive suite of unit and integration tests. It adds significant new functionality and infrastructure. Commit A is a small cleanup that removes client-side form validation attributes from a single HTML form, with minimal scope. The overall contribution of B is orders of magnitude larger.