Adds a daily-budget visualization for users worried about hitting the
Apps Script free-tier quota (20,000 UrlFetchApp calls/day).
Usage today card (desktop + Android):
- today_calls / today_bytes / today_key / today_reset_secs atomics on
DomainFronter, hooked into the bytes_relayed fetch_add path so we only
count successful relays (matching what Google actually billed)
- Daily rollover at 00:00 UTC, std-only date math (Hinnant's
civil_from_days) — no chrono/time dep pull
- StatsSnapshot extended with the four new fields + to_json() for the
Android JNI bridge
- Desktop UI renders the card right under the existing Traffic stats
with a hyperlink to https://script.google.com/home/usage for the
authoritative Google-side number
- Android UI renders the same card via Compose, polling
Native.statsJson(handle) once a second only while the proxy is up,
with an Intent(ACTION_VIEW, …) opening the dashboard URL
JNI / state plumbing:
- New Java_…_statsJson reads the Arc<DomainFronter> kept in slot_map
- VpnState.proxyHandle StateFlow so HomeScreen knows which handle to
poll without poking into the service's internal state
- MhrvVpnService publishes the handle on start, zeroes on teardown
Persian localization:
- HowToUseBody (5-step guide + Cloudflare Turnstile note) was
hardcoded English even when locale=FA. Ported to a string resource
with a full FA translation in values-fa/strings.xml. Persian users
no longer drop to English at the bottom of the screen.
Also lands the deferred Android ConfigStore.kt wiring for
passthrough_hosts (commit fe9328e shipped the Rust + desktop side).
82 tests pass (added: unix_to_ymd_utc_handles_known_epochs,
seconds_until_utc_midnight_is_bounded). Built and visually verified on
both desktop and Android emulator (mhrv_test AVD).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
therealaleph