feat(platform): open header nav links in new tabs

feat(platform): add app link to header navigation

feat(platform): render evaluation formulas with katex

feat(platform): resolve report asset links in evaluation markdown

chore(git): ignore deploy assets

fix(scripts): derive repo paths from script location

docs(web): document root-path deployment

test(web): cover subpath launch wiring

fix(web): honor configured Gradio root path

fix(platform): allow deployed preview hostnames

fix(platform): support static diagnostic evaluation builds

feat(deploy): add platform launch assets

Merge branch 'main' of https://github.com/yhzhu99/HealthFlow

fix(web): update web app title from "HealthFlow Web" to "HealthFlow App"

refactor(platform): streamline evaluation content tabs