Calorie Ledger v0.1.22

Signed Android release APK for internal testing.

QA

Add waist tracking and public update mirror (7fe36c1)
Fix backup codec unit tests (820d1c9)
Harden local backup and updates (03008a7)
Clean update download flow (f4fd1c0)
Separate target and daily weight (313107e)
Fix suspend function call in startDownloadApk synchronous path (1896f5e)
Add auto-download and auto-install for in-app updates (b77c94b)
Fix update build configuration (e310701)
Add release update reminders (9bbc6b9)
Expand project README (d8ac34e)
Add auto versioning and draft refinement (dae81d2)
Update bottom navigation labels (d0b5d5c)
Add backup import export (3b7302b)
Harden feedback and add calculation tests (9d6f3d6)
Add natural language food logging (3b8c95d)
Show save dialogs and fix net balance (3b7635e)
Add save feedback and fix vision endpoint (2036c0d)
Address calorie ledger review issues (0b9ee51)
Upload debug APK artifact (6e9d683)
Fix Compose compile errors (eb3a376)