v0.1.0-alpha.18 — fix NFC tap activation, correct screen-time totals, per-day drill-down

[codebooo]

1. NFC tap wasn't activating Brick modes

Two real bugs, both fixed:

• The manifest only declared NDEF_DISCOVERED (with a custom MIME a blank tag never carries) and TECH_DISCOVERED. Plain tags that fall through to TAG_DISCOVERED matched no filter at all, so nothing launched outside the app. That filter is now declared.
• In-app taps had no handler — reader mode only ran while pairing. Brick now keeps reader mode on for as long as the screen is open, so a tap there flips the mode directly, exactly like a tap from outside.
• Tag ids are normalized (trim + uppercase) on both pairing and scanning, the DB lookup is case/whitespace-insensitive, and the toast now names the scanned UID when it's unpaired instead of silently doing nothing. Tapping a different tag while a mode is running now explains why nothing happened instead of no-oping.

2. Screen Time reported ~191h/day

Root cause: queryAndAggregateUsageStats returns each app's total for whatever interval bucket Android picked internally (often weekly/monthly) — querying it once per day handed back the same bloated total for all seven days, which is exactly the identical-bar bug reported. Rewritten to walk the raw UsageEvents stream and sum ACTIVITY_RESUMED → PAUSED/STOPPED pairs per app, with screen-off and end-of-day closing any still-open session. Existing bad rows are wiped and rebuilt once automatically on first launch of this version.

3. Per-day drill-down

Tapping a bar in the weekly chart opens a sheet with that day's total screen time, unlock count, and its own app ranking.

Debug + minified release builds pass; all Brick policy unit tests pass. versionCode 18.

🤖 Generated with Claude Code

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