The Units field carried a Default of "metric" and had no blank option, so
the global panel layer always set a value and locked organizations and
users out of changing it. Mirror the fix already applied to OpenSky's plan.
- Plugin descriptor: drop the "metric" Default and add a blank "Not set"
option; runtime still falls back to metric when no layer sets it.
- Web App: add a "Not set" choice to the Units control and stop forcing
metric back into the form on load.
- Test guards that the units field has no Default and offers a blank option.
- Rebuilt embedded frontend.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Builtin API Server connector for the OpenWeather API (current weather +
5-day forecast for a point, API-key auth, stdlib-only), surfaced to end
users through the same three-layer settings cascade as OpenSky/WebDAV.
- New builtin plugin (internal/plugins/builtin/openweather) with
health probe, weather.current/forecast.5day capabilities, and tests.
- resolveOpenWeather cascade (global -> org -> user) with per-field
independent resolution and API-key masking; GET/PUT/health endpoints.
- Web App BFF relays, api.js client, and a Settings card under
APIs - External (scope switch, enable toggles, test connection).
- Resolver unit tests + rebuilt embedded frontend.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
