2026.09.15.01

What's Changed

• Line Diagram | Guide Links by @lvachon1 in #3485
• dev(DotcomWeb.Router): show Phoenix's debugger by @thecristen in #3489
• QF | Line Diagram PDF schedules by @lvachon1 in #3481
• fix(CustomerSupportForm): move privacy checkbox by @thecristen in #3490
• fix(Stops.Api): handle missing relationships by @thecristen in #3495
• chore(deps): Upgrade Elixir to 1.20.4, and upgrade some deps whose old versions are now incompatible. by @joshlarson in #3486

Full Changelog: 2026.09.11.01...2026.09.15.01