docs: add handover operations guide

fix: disable sandoll fontstream loading

fix: decrypt public nickname displays

chore: add local https dev compose

docs: record latest db refresh

chore: configure beta kmc url code

chore: add production ecs deployment

fix: keep production hosts off staging target groups

chore: split staging and production db users

docs: record vendor main integration rehearsal

chore: add vendor schema migration to cutover flow

Merge branch 'backup/our-handover-patches-20260507' into integrate/vendor-main

wip: preserve handover patches before vendor update

Add magazine tag slash route alias

Add magazine tag edge endpoint

Harden production API paths

fix(qanote): validate preview workflow with ref

feat: add QA Note ECS preview workflow

Use Node 24 for Vercel deploy workflow actions

Fix Vercel auto deploy workflow