The expanded location row was one long form. Split it into tabs so it opens
showing only the Connection fields. Retention moves from a stacked section
into its own tab, and the advanced overrides (URI/SSH port/append-only) get
their own tab instead of the inline disclosure from the previous pass.
Field grouping is metadata-driven: locFieldGroups partitions a type's fields
into Connection vs Advanced via the configs.json "advanced" flag (with
LOC_ADVANCED_SUFFIXES as the legacy fallback). Type changes rebuild both the
Connection and Advanced panels since advanced fields are type-dependent too.
Save still reads every field across all panels (hidden tabs stay in the DOM).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
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