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 single-homes on a scanner-clean tree (97 files, +398/−502): web-test path→answer table (46 routers/39 suites), one clock hook + one poll-interval module, one render shim, jaahd machine(), API clients via http_bounded/github_api.client. Quick gate, tsc, web/jaahd/API suites green; code+security+verifier lanes pass. PR #7390 merged by the lane into develop (1c6d8499), Jaah Deploy succeeded. Memory: none applied; proposed 0.