v0.1.1: configurable weather endpoint + F-Droid review fixes

[shining-cat]

Summary

Bundled v0.1.1 (versionCode 2) release.

• Configurable weather endpoint — weather is now opt-in and off by default. Users tap Use Open-Meteo for the keyless public API or enter their own Open-Meteo-compatible (self-hosted) endpoint. No network or location calls until enabled.
• F-Droid review findings addressed — dropped the FINE-only passive location provider (weather now actually gets a fix), unmapped weather conditions render nothing instead of a placeholder, and calendar-provider permission warnings are silenced.
• Docs — README restructured (intro teaser + dedicated ## Weather section + slimmed Distribution), fastlane full_description aligned, refreshed screenshots, changelog 2.txt.
• Version — versionCode 1→2, versionName 0.1.0→0.1.1.

Known behavior (documented, not a bug)

Turning weather off clears the glyphs on the next widget refresh tick (~1 min), not instantly — it joins the alarm/battery live signals under Glance's RemoteViews model. Documented in README "Refresh cadence".

Test plan

• testDebugUnitTest — green
• ktlintCheck + spotlessCheck — green