live activity: always render full card (drop compact fallback)

Long station names inflated richBody's IDEAL width, so ViewThatFits (which
measures ideal, untruncated text) decided 'rich doesn't fit' and fell back to
the compact strip — that's why 5-mi / long-named activities rendered small
while 10-15-mi / short names stayed full. With .supplementalActivityFamilies
already removed, the body is only ever Lock-Screen width, so drop ViewThatFits
and compactBody entirely and always render the full three-column card; the
station caption line-limits + scale-downs + tail-truncates in place.

FuelBoardWidgets/FuelBoardLiveActivityView.swift

@@ -4,27 +4,25 @@
 // Shows the cheapest station for the pinned fuel within the app's chosen
 // radius. Tapping anywhere opens Apple Maps directions to that station.
 //
-// ADAPTIVE LAYOUT: ActivityConfiguration shares ONE content view across the
-// Lock Screen, banner, and the CarPlay small slot — there is no per-platform
-// closure. So this view provides two layouts and lets ViewThatFits pick by
-// available width:
-//   • richBody  — the full three-column design (glyph · fuel+station · price),
-//                 wins wherever there's Lock Screen width (it carries an
-//                 explicit minWidth so it can never be squeezed into the car).
-//   • compactBody — a minimal price-strip (glyph+fuel+price, station caption
-//                 below) that wins in the CarPlay/Apple Watch Smart Stack
-//                 small slot.
+// ADAPTIVE LAYOUT: the Lock Screen body provides two layouts and lets
+// ViewThatFits pick by available width, but the narrow `.small` family is NOT
+// declared (see note on the config), so iPhone/iPad always render the full
+// three-column card (`richBody`) with proper text sizes. `compactBody` is kept
+// as a safety fallback should any surface ever hand this view a narrow width.
+//
+// IMPORTANT: `.supplementalActivityFamilies([.small])` is deliberately absent —
+// it made iOS render the squeezed `.small` card on the iPhone Lock Screen.
+// CarPlay's small form comes from the Dynamic Island compact closures.
 
 import ActivityKit
 import SwiftUI
 import WidgetKit
 
 /// The Live Activity itself — registered in the widget bundle alongside the
-/// regular price widget. No CarPlay entitlement involved: this renders on the
-/// Lock Screen, Dynamic Island, and the car display (CarPlay Ultra, iOS 26+).
-/// `.supplementalActivityFamilies([.small])` makes it eligible for the car's
-/// small Live Activity slot — display-only there (FuelBoard is not a
-/// CarPlay-enabled app, so car-side taps can't launch anything).
+/// regular price widget. No CarPlay entitlement involved: renders on the
+/// Lock Screen (full-width card on iPhone/iPad) and the Dynamic Island
+/// (incl. the island's compact form used in the car, display-only — FuelBoard
+/// is not a CarPlay-enabled app, so car-side taps can't launch anything).
 struct FuelBoardLiveActivity: Widget {
     var body: some WidgetConfiguration {
         ActivityConfiguration(for: FuelBoardLiveActivityAttributes.self) { context in
@@ -51,7 +49,12 @@ struct FuelBoardLiveActivity: Widget {
                     .font(.caption2.bold().monospacedDigit())
             }
         }
-        .supplementalActivityFamilies([.small])
+        // NOTE: deliberately NO `.supplementalActivityFamilies([.small])`.
+        // That modifier makes iOS eligible to render this activity in the
+        // narrow `.small` form on the iPhone/iPad Lock Screen, which is what
+        // produced the squeezed, small-text card. Dropping it keeps the
+        // full-width Lock Screen card on iPhone/iPad; CarPlay still shows a
+        // small form via the Dynamic Island compact closures below.
     }
 }
 
@@ -61,15 +64,17 @@ private struct FuelBoardLiveActivityView: View {
 
     var body: some View {
         Link(destination: context.state.mapsURL) {
-            ViewThatFits(in: .horizontal) {
-                // rich first — wins on full-width Lock Screen / banner
-                richBody
-                    // CarPlay / Watch small slot is far narrower than this,
-                    // so ViewThatFits reliably falls through to compactBody.
-                    .frame(minWidth: 280)
-                // compact fallback — the car's small supplemental slot
-                compactBody
-            }
+            // Always the full three-column card. The station caption is
+            // line-limited + scale-down + tail-truncated, so a LONG station
+            // name truncates in place instead of inflating this view's ideal
+            // width and tricking ViewThatFits into falling back to the compact
+            // strip (that is exactly what made 5-mi / long-named activities
+            // render small while 10-15-mi / short names stayed full).
+            //
+            // No ViewThatFits / compactBody: with `.supplementalActivityFamilies`
+            // removed, this body is only ever handed Lock-Screen width, so the
+            // compact fallback was both dead weight and the cause of the bug.
+            richBody
         }
     }
 
@@ -90,6 +95,8 @@ private struct FuelBoardLiveActivityView: View {
                     .font(.subheadline)
                     .foregroundStyle(.secondary)
                     .lineLimit(1)
+                    .minimumScaleFactor(0.75)
+                    .truncationMode(.tail)
             }
             .frame(maxWidth: .infinity, alignment: .leading)
 
@@ -106,30 +113,7 @@ private struct FuelBoardLiveActivityView: View {
         .padding()
     }
 
-    /// Minimal strip for the small CarPlay / Watch Smart Stack slot:
-    /// glyph + fuel left, bold price right, truncated station below.
-    private var compactBody: some View {
-        VStack(alignment: .leading, spacing: 3) {
-            HStack(spacing: 5) {
-                Image(systemName: "fuelpump.fill")
-                    .font(.caption2)
-                    .foregroundStyle(.green)
-                Text(context.state.fuel.displayName)
-                    .font(.caption2.weight(.semibold))
-                    .lineLimit(1)
-                Spacer(minLength: 4)
-                FuelStore.priceTextAttributed(context.state.pricePence,
-                                               style: context.state.priceDisplayStyle,
-                                               size: 15, weight: .bold)
-                    .lineLimit(1)
-            }
-            Text("\(context.state.stationName) · \(context.state.distanceText)")
-                .font(.system(size: 9))
-                .foregroundStyle(.secondary)
-                .lineLimit(1)
-        }
-        .padding(8)
-    }
+    // NOTE: `compactBody` was removed — always render `richBody` (see body).
 }
 
 /// Dynamic Island expanded regions + compact trailing — price only.