Swimchain Android v0.1.9-alpha (mainnet — checkpoint)

Consolidated checkpoint: full-bleed feed media carousel with swipe galleries (#102), no-rubber-band overscroll (#106), and the node's same-second listing fix with automatic index migration (#108). versionCode 1002 — installs as an update over any earlier build.

SHA-256: 9c15c7a12e7f01260084dca9b18ef96598a0b25bfa0967214bd40681d6ebe3cd