Top 5 Code Reduction Opportunities Implementation

Identify top 5 opportunities to massively reduce the amount of code (lines of code) in any part of the repo: - Similar functionality that can be unified and reused - Code that has been valuable but no more - A front end component or a group of them duplicate another component/page functionality. Use the most modern and nice looking - etc. Now implement them :)

Five reductions shipped, net -3,546 lines over 209 files: never-reported Vale rules (-1,127), web test render helpers (-1,016), Python test imports, API route-test helpers + billing fixture, three subject-less tools guards. Quick gate green, blind review pass with all findings applied, no UI surface affected. PR #7664 queued to the merge lane. Pre-existing CE suite red filed as draft #12434.