fix: FAB buttons above nav + Sasquatch no auto-trigger on map

- FABs (add spot/shop): switch from fixed bottom-[88px] to
  calc(3.5rem + env(safe-area-inset-bottom, 0px) + 0.75rem) so they
  respect device safe-area and always clear the bottom nav on all
  Android/iOS Capacitor builds
- Right-side filter pills: same fix, switched from absolute to fixed
  with the same safe-area-aware bottom value
- useSasquatchGuide: /map page now returns undefined message, meaning
  Sasquatch never auto-opens when navigating to Shops & Spots — user
  must tap the floating bubble to open it manually

Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>

src/hooks/useSasquatchGuide.ts

@@ -147,38 +147,10 @@ export function useSasquatchGuide() {
       };
     }
 
-    // Show on Shops & Spots map page with random jokes
+    // /map: never auto-show — user opens Sasquatch by tapping the floating bubble
+    // The map guide context + jokes are still available in the generic fallback inside SasquatchGuide
     else if (location.pathname === '/map') {
-      const joke = getRandomJoke(MAP_JOKES);
-      message = {
-        id: 'map-guide',
-        title: 'Shops & Spots Explorer! 🗺️',
-        message: `Welcome to the global skate database! Use the map to discover spots and shops worldwide, or switch to list view to filter by type. Toggle between Spots (🛹), Shops (🏪), and Gear (🛒) using the buttons. Pro tip: Click anywhere on the map when logged in to add a new spot!\n\n${joke}`,
-        context: 'map',
-        suggestedQuestions: [
-          'Find beginner spots',
-          'Find spots in Bangkok',
-          'Find skate parks',
-          'Any street spots?',
-          'Gear for sale?',
-          'How to add spot?',
-          'What are spots?',
-          'Weather on map?',
-        ],
-        action: user ? {
-          label: 'Add Your First Spot',
-          onClick: () => {
-            // This will just scroll to show them they can click the map
-            window.scrollTo({ top: 0, behavior: 'smooth' });
-          },
-        } : {
-          label: 'Login to Add Spots',
-          onClick: () => {
-            window.location.href = '/onboarding';
-          },
-        },
-        enableChat: true,
-      };
+      message = undefined;
     }
 
     setCurrentMessage(message);

src/pages/MapPage.tsx

@@ -1421,16 +1421,19 @@ export default function MapPage() {
                 </div>
               )}
 
-              {/* Add Spot + Add Shop FABs — bottom-left, 16px from bottom of map container
-                  The map container already excludes the bottom nav height, so bottom-4 is correct.
-                  Hidden when overlays open. */}
+              {/* Add Spot + Add Shop FABs — fixed to screen, above bottom nav.
+                  Uses fixed positioning so CSS variable issues on Capacitor don't affect placement.
+                  calc(4rem + env(safe-area-inset-bottom, 0px)) + 44px gap = clears nav on all devices. */}
               {user && (
-                <div className={cn(
-                  "absolute bottom-4 left-3 z-[1001] md:hidden flex flex-col items-start gap-2.5 transition-all duration-200",
-                  mobileFiltersOpen || selectedSpot || sasquatchPanelOpen
-                    ? "opacity-0 pointer-events-none scale-90"
-                    : "opacity-100 scale-100"
-                )}>
+                <div
+                  className={cn(
+                    "fixed left-3 z-[1001] md:hidden flex flex-col items-start gap-2.5 transition-all duration-200",
+                    mobileFiltersOpen || selectedSpot || sasquatchPanelOpen
+                      ? "opacity-0 pointer-events-none scale-90"
+                      : "opacity-100 scale-100"
+                  )}
+                  style={{ bottom: 'calc(3.5rem + env(safe-area-inset-bottom, 0px) + 0.75rem)' }}
+                >
                   {/* Add Shop — green circle */}
                   <Link to="/create-shop" aria-label="Add a skate shop">
                     <button
@@ -1536,10 +1539,13 @@ export default function MapPage() {
               )}
 
               {/* Right-side control column — filter pills + Quick Snap (mobile only, hidden when overlays open) */}
-              <div className={cn(
-                "absolute bottom-4 right-3 z-[1000] md:hidden flex flex-col items-center gap-2 transition-opacity duration-150",
-                mobileFiltersOpen || selectedSpot ? "opacity-0 pointer-events-none" : "opacity-100"
-              )}>
+              <div
+                className={cn(
+                  "fixed right-3 z-[1000] md:hidden flex flex-col items-center gap-2 transition-opacity duration-150",
+                  mobileFiltersOpen || selectedSpot ? "opacity-0 pointer-events-none" : "opacity-100"
+                )}
+                style={{ bottom: 'calc(3.5rem + env(safe-area-inset-bottom, 0px) + 0.75rem)' }}
+              >
                 {/* Layer filter pills — compact icon-only */}
                 {[
                   { key: 'spots', label: '🛹', active: showSpots, toggle: () => setShowSpots(v => !v), activeColor: 'bg-red-500/90' },