add mapbox gl option, gps location, journey reorder + polish

- Mapbox GL provider alongside Leaflet for trip and journey maps (opt-in in
  settings with token, style presets incl. 3D on satellite, quality mode,
  experimental badge).
- GPS "blue dot" with heading cone on mobile; three-state FAB (off / show /
  follow), geodesic accuracy circle, desktop-hidden since browser IP geo is
  too coarse for navigation.
- Marker drift fix: outer wrap no longer carries inline position/transform,
  so mapbox's translate keeps the pin pinned at every zoom and pitch.
- Journey map popup (mapbox-gl): Apple-Maps-style tooltip on marker
  highlight/click showing entry title + location / date subline.
- Journey feed reorder: up/down controls to the left of each entry reorder
  sort_order within a day. Server endpoint, optimistic store update, rollback
  on failure.
- Journey entry editor: desktop modal now centers over the feed column only,
  backdrop still blurs the whole page (map included).
- Scroll-sync guard on journey: marker click locks the sync so smooth-scroll
  can't steer the highlight to a neighbouring entry mid-animation.
- Misc: map top-padding aligned with hero, live/synced badges replaced by a
  compact back-button in the hero, skeleton entries no longer pollute the
  journey map, journey detail no longer shows map on mobile path when
  combined view is active.

client/src/components/Journey/JourneyMapAuto.tsx

@@ -0,0 +1,55 @@
+import { forwardRef, useImperativeHandle, useRef } from 'react'
+import { useSettingsStore } from '../../store/settingsStore'
+import JourneyMap, { type JourneyMapHandle } from './JourneyMap'
+import JourneyMapGL, { type JourneyMapGLHandle } from './JourneyMapGL'
+
+// Unified handle — both providers expose the same three methods.
+export type JourneyMapAutoHandle = JourneyMapHandle
+
+interface MapEntry {
+  id: string
+  lat: number
+  lng: number
+  title?: string | null
+  location_name?: string | null
+  mood?: string | null
+  entry_date: string
+}
+
+interface Props {
+  checkins: unknown[]
+  entries: MapEntry[]
+  trail?: { lat: number; lng: number }[]
+  height?: number
+  dark?: boolean
+  activeMarkerId?: string | null
+  onMarkerClick?: (id: string, type?: string) => void
+  fullScreen?: boolean
+  paddingBottom?: number
+}
+
+const JourneyMapAuto = forwardRef<JourneyMapAutoHandle, Props>(function JourneyMapAuto(props, ref) {
+  const provider = useSettingsStore(s => s.settings.map_provider)
+  const token = useSettingsStore(s => s.settings.mapbox_access_token)
+  const leafletRef = useRef<JourneyMapHandle>(null)
+  const glRef = useRef<JourneyMapGLHandle>(null)
+
+  // Fall back to Leaflet when the user selected Mapbox GL but hasn't
+  // supplied a token yet — otherwise the map would just show a stub.
+  const useGL = provider === 'mapbox-gl' && !!token
+
+  useImperativeHandle(ref, () => ({
+    highlightMarker: (id) => (useGL ? glRef.current : leafletRef.current)?.highlightMarker(id),
+    focusMarker: (id) => (useGL ? glRef.current : leafletRef.current)?.focusMarker(id),
+    invalidateSize: () => (useGL ? glRef.current : leafletRef.current)?.invalidateSize(),
+  }), [useGL])
+
+  if (useGL) {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return <JourneyMapGL ref={glRef} {...(props as any)} />
+  }
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  return <JourneyMap ref={leafletRef} {...(props as any)} />
+})
+
+export default JourneyMapAuto