fix: Add button moved to sticky bottom bar — always tappable on first tap

- Button outside ScrollView using safeAreaInset(edge: .bottom)
- No more scroll gesture eating the first tap
- scrollDismissesKeyboard(.immediately) for keyboard handling
- Swipe to delete on meal entries

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ios/Platform/Platform/Features/Fitness/Views/AddFoodSheet.swift

@@ -165,29 +165,33 @@ struct AddFoodSheet: View {
                             .font(.caption)
                             .foregroundStyle(.red)
                     }
-
-                    // Add button
-                    Button {
-                        addEntry()
-                    } label: {
-                        if isAdding {
-                            ProgressView()
-                                .tint(.white)
-                        } else {
-                            Text("Add to \(selectedMeal.displayName)")
-                                .font(.headline)
-                        }
-                    }
-                    .frame(maxWidth: .infinity)
-                    .frame(height: 50)
-                    .background(Color.accentWarm)
-                    .foregroundStyle(.white)
-                    .clipShape(RoundedRectangle(cornerRadius: 12))
-                    .disabled(isAdding)
                 }
                 .padding()
             }
+            .scrollDismissesKeyboard(.immediately)
             .background(Color.canvas)
+            .safeAreaInset(edge: .bottom) {
+                Button {
+                    addEntry()
+                } label: {
+                    if isAdding {
+                        ProgressView()
+                            .tint(.white)
+                    } else {
+                        Text("Add to \(selectedMeal.displayName)")
+                            .font(.headline)
+                    }
+                }
+                .frame(maxWidth: .infinity)
+                .frame(height: 50)
+                .background(Color.accentWarm)
+                .foregroundStyle(.white)
+                .clipShape(RoundedRectangle(cornerRadius: 12))
+                .disabled(isAdding)
+                .padding(.horizontal)
+                .padding(.bottom, 8)
+                .background(Color.canvas)
+            }
             .navigationTitle("Add Food")
             .navigationBarTitleDisplayMode(.inline)
             .toolbar {