feat: weather widget v61 + OS widget

[jvsena42]

FIGMA

1. Adds a Glance-backed Bitcoin Weather home screen widget with Wide and Compact layouts
2. Migrates WeatherCard, WeatherEditScreen, and WeatherPreviewScreen to the v61 design
3. Replaces the legacy showTitle / showDescription / showCurrentFee / showNextBlockFee toggles with a single selectedOption (current fee in fiat, current fee in sats, or next block inclusion)
4. Wires Weather preferences through the shared AppWidgetConfigActivity / preferences store / refresh worker
5. Adds a WeatherConfigContent for the OS widget config flow with the new option list

Description

WeatherGlanceWidget uses SizeMode.Responsive with the shared COMPACT_WIDGET_SIZE / WIDE_WIDGET_SIZE thresholds. Wide layout puts the title, description, and selected fee block on the left with the weather emoji at 72sp on the right; Compact stacks the emoji on top with a short condition title and the fee block below. The selected fee value uses the condition color (green / yellow / red) from FeeCondition.

In-app, WeatherCard is split into wide / compact variants and WeatherPreviewScreen mirrors Headlines / Blocks / Facts (top-bar, description, divider, WidgetSizeCarousel, Save / Delete). WeatherEditScreen is rebuilt around the new single-option model and removes the title / description / show-toggles UI. The shared AppWidgetConfigActivity plumbing now supports AppWidgetType.WEATHER via WeatherConfigContent and the new HomeWeatherPreferences projection on AppWidgetEntry.

MigrationService maps the legacy showMedian / showNextBlockFee flags onto the new WeatherDataOption enum (CURRENT_FEE_FIAT / CURRENT_FEE_SATS / NEXT_BLOCK_INCLUSION), defaulting to CURRENT_FEE_FIAT. Legacy on-disk JSON is safe (ignoreUnknownKeys = true).

Manifest and appwidget_info_weather.xml register the provider with the shared default placement and resize bounds, and string resources gain *__short_title variants plus widgets__widget__display.

Preview

os-widget.webm

in-app-widget.webm

QA Notes

System widget

1. Widgets picker → "Bitcoin Weather" preview shows the wide layout with emoji on the right.
2. Drop at default size — Wide, title + description + fee block visible, emoji right.
3. Resize to compact — Compact, emoji on top, short condition title, fee block at the bottom.
4. Open the configure activity from the widget tap — the option list shows current fee (fiat), current fee (sats), and next block inclusion with the live preview value next to each.
5. Pick each option and Save — the widget re-renders with the corresponding label and value; fee text color matches the current FeeCondition (green / yellow / red).
6. Reset — the option returns to the default (CURRENT_FEE_FIAT).
7. Wait for refresh tick — fee values update.
8. Remove widget — entry cleared from appwidget_data.json.

In-app widget

9. Widgets feed → Bitcoin Weather — preview screen shows v61 layout (top-bar, description, divider, carousel, Save / Delete).
10. Swipe carousel — small / wide cards render with the selected option's value and condition color.
11. Open Edit — only the option list is shown (no Show Title / Show Description / Show Source toggles). Switching between options updates the live card.
12. Save and verify the in-app WeatherCard on Home reflects v61 and the chosen option.
13. With widget added, reopen preview — Delete + Save both appear; Delete removes the in-app card.
14. Existing install with legacy {"showStatus": true, "showText": false, "showMedian": true, "showNextBlockFee": false} on disk — app launches without serialization errors and the widget defaults to current-fee-fiat (or next-block-inclusion if the legacy flag was set).