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

tests/Unit/Services/FuelPriceServiceTest.php

@@ -342,6 +342,38 @@ it('does not cache the poll timestamp when a batch errors', function (): void {
     expect(Cache::has('fuel_finder_last_price_poll_at'))->toBeFalse();
 });
 
+it('retries a failing batch and recovers when the API responds successfully', function (): void {
+    Cache::put('fuel_finder_access_token', 'tok', 3540);
+    Station::factory()->create(['node_id' => 'sta1']);
+
+    Http::fake([
+        '*/pfs/fuel-prices*' => Http::sequence()
+            ->push([], 500)
+            ->push([], 500)
+            ->push([
+                [
+                    'node_id' => 'sta1',
+                    'fuel_prices' => [
+                        [
+                            'fuel_type' => 'E10',
+                            'price' => 142.9,
+                            'price_last_updated' => '2026-04-04T10:00:00.000Z',
+                            'price_change_effective_timestamp' => '2026-04-04T10:00:00.000Z',
+                        ],
+                    ],
+                ],
+            ])
+            ->push([]),
+    ]);
+
+    $inserted = $this->service->pollPrices();
+
+    expect($inserted)->toBe(1)
+        ->and(StationPrice::count())->toBe(1);
+
+    Http::assertSentCount(4);
+});
+
 it('skips price rows for stations not present in the stations table', function (): void {
     Cache::put('fuel_finder_access_token', 'tok', 3540);