Point every app's fap_weburl at the renamed repo
(github.com/andydixon/flipper-bluepp) and recenter the build.sh header on the
full-stack BLE firmware and the app suite rather than a single app. GitHub
repo renamed from flipper-bt-inspector; the slug drops "++" since GitHub repo
names cannot contain "+".
Connects to a selected peripheral, finds readable/notifying characteristics with known SIG meanings, and shows them decoded and updating live. Reuses libble (central + value decoders).