feat(chase): the switches follow the operator, not the panel

Chase POTA, US counties, prefixes and grids were written for the cluster
and stayed there, so an operator who does not chase parks still met NEW
POTA in the FT decode list and in Chase new: the same badge withdrawn on
one screen and shouting on the next. The setting is about what is hunted.

One helper answers the question for every panel, keyed by both the status
field names and the shorter category names so a single call serves badges
and filter chips alike. Chase new also stops CATEGORISING a row by a
marker that is switched off, which had left rows listed with no visible
reason for being there. A new US state has no switch of its own, so it is
always allowed.

frontend/src/components/DecodesPanel.tsx

@@ -16,6 +16,7 @@ import { useEffect, useMemo, useState } from 'react';
 import { Radio, Search, X, Signal, ArrowUpRight, Timer, Trash2, Ban, Columns2, Bot } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import { useI18n } from '@/lib/i18n';
+import { chaseAllows } from '@/lib/spotDisplay';
 import { markerColour, type SpotMarkerKey } from '@/lib/spotMarkers';
 import { writeUiPref } from '@/lib/uiPref';
 
@@ -743,7 +744,7 @@ export function DecodesPanel({ decodes, txMsgs, txState, txStates, spotStatus, o
         {/* Per-category badges, in the colours of the flags they select — the
             same vocabulary as the Chase New panel. */}
         <span className="flex items-center gap-1 pl-1 border-l border-border/60 ml-1" title={t('dec.catsHint')}>
-          {NEW_CATS.map((c) => {
+          {NEW_CATS.filter((c) => chaseAllows(c.key)).map((c) => {
             const on = cats.has(c.key);
             return (
               <button
@@ -1051,7 +1052,7 @@ export function DecodesPanel({ decodes, txMsgs, txState, txStates, spotStatus, o
               const e = statusOf(d);
               const st = e?.status && e.status !== 'worked' ? e.status : '';
               const entities = st ? entityBadgesFor(st) : [];
-              const extras = EXTRA_BADGES.filter((b) => !!e?.[b.key]);
+              const extras = EXTRA_BADGES.filter((b) => !!e?.[b.key] && chaseAllows(b.key as string));
               const mine = !!me && d.call === me;
               const hot = entities.length > 0 || extras.length > 0;
               // Someone answering us outranks everything else on the screen.