Hands the companion-owned work to the companion agent with precise
pointers (Android/ source, served APK at 0.5.27/vc47 + the deploy
pipeline from the 2026-07-23 handoff, the ArchipelagoNative bridge and
isCompanionApp gating pattern) and the queue: the ungated
CompanionBanner/intro-trigger residual of #61 (Discover.vue:156,
useCompanionIntro's openCompanionIntro), GrapheneOS backup/restore (#128,
reusing the node's ADR-005 backup envelope), and the NIP-46 remote-signer
phone side (#139, with the signer-login research doc as background).
Tracker labels applied earlier: #128 and #139 carry 'companion-agent'.
