feat(app): larger text app-wide (v0.6.1)

Bumps all small text (~10–15.5px) up ~+1.5px across 45 declarations,
largest-source-first to avoid double-application — addresses "글씨들이
전체적으로 작아". Pairs with the v0.6.1 backend (near-station snap, night
moonrise, relaxed extrema pruning).

Constraint: pure CSS size bump; layout grids unaffected (only font-size touched).
Confidence: high
Scope-risk: local
Reversibility: trivial
Tested: app build clean; APK deployed (v0.6.1); Playwright shows larger, readable text and the night moonrise (월출 00:05) now rendering.
Not-tested: on-device legibility across screen densities.
Related: v0.6.1 backend

🐙 Autopus <noreply@autopus.co>