Added checkbox to show/hide boundaries when zoomed in past render threshold

[calebrob6]

Adds a checkbox that allows me to toggle the fields on off -- helpful when I want to see the underlying imagery. Checkbox is disabled until you zoom past GLOBAL_DATA_MAP_FIELD_START_ZOOM_LEVEL

[Copilot]

Pull request overview

Adds a user-facing toggle to show/hide global field boundary overlays, intended to make it easier to inspect underlying imagery while using the global predictions map mode.

Changes:

• Extend persisted Settings with showFieldBoundaries (default true).
• Apply the visibility setting to the global predictions layer and react to changes.
• Add a “Show field boundaries” checkbox in GlobalDataPanel, disabled until GLOBAL_DATA_MAP_FIELD_START_ZOOM_LEVEL.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/composables/useSettings.ts	Adds showFieldBoundaries to settings + default value for persistence.
src/composables/useMap.ts	Sets global predictions layer visibility from settings and watches for toggles.
src/components/GlobalDataPanel.vue	Adds zoom-gated checkbox UI bound to settings.showFieldBoundaries.

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[m-mohr]

Disabling the field boundaries is not reflected in the URL, making the link not easily sharable.

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I'm not sure whether it's better or worse, but I'm just thinking we could also do something like this:

[calebrob6]

Disabling the field boundaries is not reflected in the URL, making the link not easily sharable.

Fixed. I don't really have an opinion on whether this is in the existing radio button or not

[m-mohr]

Thanks. I just had another Idea. Why not add an opacity slider? Then you could set opacity to whatever makes let's you best judge the boundaries. 0 would be equivalent to now shown. We could or could not apply the opacity also to the overview layer.

More todos:

• Fix merge conflicts
• Discuss best options (opacity / year / as-is in the PR)
• Check Added checkbox to show/hide boundaries when zoomed in past render threshold #255 (comment)
• If we keep the checkbox, potentially hide it instead of disabling it

Approving as the blockers are solved, but I think it's worth discussing the other options. Could be part of a different PR.

[m-mohr]

Merging for now, will create a separate PR for the opacity.