feat(ui): mobile-first redesign — compact hero, inline submit button, map-first with collapsible list

- Hero: remove full-width mobile submit, add inline "Go" button next to locate
- Prediction cards: tighter mobile padding (px-3 py-3)
- Search filters: right-aligned toolbar, remove "X stations found" count and map toggle
- Map: initialize view immediately to avoid tile wiggle, skip recenter on fresh init
- Station list: hidden by default, toggled via "Stations {count}" pill above map
- Typography: hide desktop h1 on mobile, scale down section headings and spacing
- Footer: remove uppercase styling from headings and copyright line
- Filter popover: auto-close on fuel/radius/sort/brand selection

fix(llm): retry submit_overlay when events_cited is missing, extend Fuel Finder timeout with retries

- LlmOverlayService: add `minItems: 1` to events_cited schema, detect missing citations
  in submit response, inject tool_result error and retry once with explicit prompt
- Log full raw_result context when no verified citations, capturing direction/confidence/reasoning
- FuelPriceService: add 3×1s retry with 60s timeout to batch price requests (was 30s no retry)
- Tests: cover successful retry recovery and rejection when retry also omits citations

resources/js/components/landing/HeroSearch.vue

@@ -21,6 +21,14 @@
                 <iconify-icon :class="{ 'animate-spin': locating }" :icon="locating ? 'lucide:loader-circle' : 'lucide:locate-fixed'" class="text-lg"></iconify-icon>
             </button>
 
+            <!-- Mobile-only inline "Go" submit — sits next to the locate button -->
+            <button
+                class="md:hidden h-11 px-4 -ml-1 rounded-[10px] bg-primary text-white font-medium text-sm inline-flex items-center justify-center shrink-0 hover:opacity-90 transition"
+                type="submit"
+            >
+                Go
+            </button>
+
             <!-- Desktop-only inline submit -->
             <button
                 class="hidden md:inline-flex h-12 px-5 ml-1 rounded-xl bg-primary text-white font-medium text-[15px] items-center gap-2 hover:opacity-90 transition"
@@ -31,15 +39,6 @@
             </button>
         </label>
 
-        <!-- Mobile-only full-width submit -->
-        <button
-            class="md:hidden w-full mt-2.5 h-14 rounded-2xl bg-primary text-white font-medium text-base inline-flex items-center justify-center gap-2 shadow-lg hover:opacity-90 transition"
-            type="submit"
-        >
-            Check prices
-            <iconify-icon class="text-lg" icon="lucide:arrow-right"></iconify-icon>
-        </button>
-
         <div class="mt-3 flex flex-wrap items-center gap-x-3 gap-y-1 text-xs text-zinc-400 justify-center md:justify-start">
             <span class="hidden md:inline text-zinc-300">·</span>
             <span class="hidden md:inline font-mono">Try SW1A 1AA · M1 1AD · EH1 1YZ</span>