Fix compact sheet bottom spacing

docs/design.md

@@ -94,6 +94,8 @@ Five primitives. The pick is determined by option count, the need to search, and
 
 `<AdaptiveModalSheet>` is for a focused task. Multi-field forms (`packages/app/src/components/add-host-modal.tsx`, `packages/app/src/components/pair-link-modal.tsx`, `packages/app/src/components/project-picker-modal.tsx`), confirmations with detail, anything that earns a backdrop. Bottom sheet on compact, centered card on desktop. Raw `Modal` is wrong for any of these.
 
+`<AdaptiveModalSheet>` owns compact bottom safe-area padding inside the sheet so the sheet background still reaches the screen bottom. If a sheet's first snap point is shorter than its header, content, and safe-area clearance, raise that snap point rather than moving the sheet container.
+
 `confirmDialog` is for destructive yes/no and imperative confirmation. Promise-based: `await confirmDialog({ destructive: true, ... })`. Anything where a wrong click loses work.
 
 Three themes is `DropdownMenu`. Thirty hosts is `Combobox`. A label and a value is `AdaptiveModalSheet`. "Are you sure?" is `confirmDialog`.

packages/app/src/components/adaptive-modal-sheet-layout.test.ts

@@ -0,0 +1,40 @@
+import { describe, expect, it } from "vitest";
+import { getCompactSheetSafeAreaPadding } from "@/components/adaptive-modal-sheet-layout";
+
+describe("getCompactSheetSafeAreaPadding", () => {
+  it("adds the bottom inset to compact sheet footers", () => {
+    expect(
+      getCompactSheetSafeAreaPadding({
+        isCompact: true,
+        hasFooter: true,
+        baseContentPadding: 24,
+        baseFooterPadding: 12,
+        safeAreaBottom: 34,
+      }),
+    ).toEqual({ footerPaddingBottom: 46 });
+  });
+
+  it("adds the bottom inset to compact sheet content when there is no footer", () => {
+    expect(
+      getCompactSheetSafeAreaPadding({
+        isCompact: true,
+        hasFooter: false,
+        baseContentPadding: 24,
+        baseFooterPadding: 12,
+        safeAreaBottom: 34,
+      }),
+    ).toEqual({ contentPaddingBottom: 58 });
+  });
+
+  it("does not inset desktop sheets", () => {
+    expect(
+      getCompactSheetSafeAreaPadding({
+        isCompact: false,
+        hasFooter: false,
+        baseContentPadding: 24,
+        baseFooterPadding: 12,
+        safeAreaBottom: 34,
+      }),
+    ).toEqual({});
+  });
+});

packages/app/src/components/adaptive-modal-sheet-layout.ts

@@ -0,0 +1,30 @@
+export interface CompactSheetSafeAreaPaddingInput {
+  isCompact: boolean;
+  hasFooter: boolean;
+  baseContentPadding: number;
+  baseFooterPadding: number;
+  safeAreaBottom: number;
+}
+
+export interface CompactSheetSafeAreaPadding {
+  contentPaddingBottom?: number;
+  footerPaddingBottom?: number;
+}
+
+export function getCompactSheetSafeAreaPadding({
+  isCompact,
+  hasFooter,
+  baseContentPadding,
+  baseFooterPadding,
+  safeAreaBottom,
+}: CompactSheetSafeAreaPaddingInput): CompactSheetSafeAreaPadding {
+  if (!isCompact || safeAreaBottom <= 0) {
+    return {};
+  }
+
+  if (hasFooter) {
+    return { footerPaddingBottom: baseFooterPadding + safeAreaBottom };
+  }
+
+  return { contentPaddingBottom: baseContentPadding + safeAreaBottom };
+}

packages/app/src/components/adaptive-modal-sheet.tsx

@@ -19,6 +19,7 @@ import {
   IsolatedBottomSheetModal,
   useIsolatedBottomSheetVisibility,
 } from "@/components/ui/isolated-bottom-sheet-modal";
+import { getCompactSheetSafeAreaPadding } from "@/components/adaptive-modal-sheet-layout";
 import { isNative, isWeb } from "@/constants/platform";
 import { useSafeAreaInsets } from "react-native-safe-area-context";
 
@@ -461,9 +462,43 @@ export function AdaptiveModalSheet({
   const isMobile = useIsCompactFormFactor();
   const insets = useSafeAreaInsets();
   const resolvedSnapPoints = useMemo(() => snapPoints ?? ["65%", "90%"], [snapPoints]);
+  const compactSafeAreaPadding = useMemo(
+    () =>
+      getCompactSheetSafeAreaPadding({
+        isCompact: isMobile,
+        hasFooter: Boolean(footer),
+        baseContentPadding: theme.spacing[SHEET_HORIZONTAL_PADDING_SCALE],
+        baseFooterPadding: theme.spacing[3],
+        safeAreaBottom: insets.bottom,
+      }),
+    [footer, insets.bottom, isMobile, theme.spacing],
+  );
+  const bottomSheetContentStyle = useMemo(
+    () => [
+      styles.bottomSheetContent,
+      compactSafeAreaPadding.contentPaddingBottom != null
+        ? { paddingBottom: compactSafeAreaPadding.contentPaddingBottom }
+        : null,
+    ],
+    [compactSafeAreaPadding.contentPaddingBottom],
+  );
+  const bottomSheetStaticContentStyle = useMemo(
+    () => [
+      styles.bottomSheetStaticContent,
+      compactSafeAreaPadding.contentPaddingBottom != null
+        ? { paddingBottom: compactSafeAreaPadding.contentPaddingBottom }
+        : null,
+    ],
+    [compactSafeAreaPadding.contentPaddingBottom],
+  );
   const footerStyle = useMemo(
-    () => [styles.footer, isMobile ? { paddingBottom: theme.spacing[3] + insets.bottom } : null],
+    () => [
-    [insets.bottom, isMobile, theme.spacing],
+      styles.footer,
+      compactSafeAreaPadding.footerPaddingBottom != null
+        ? { paddingBottom: compactSafeAreaPadding.footerPaddingBottom }
+        : null,
+    ],
+    [compactSafeAreaPadding.footerPaddingBottom],
   );
   const handleIndicatorStyle = useMemo(
     () => ({ backgroundColor: theme.colors.surface2 }),
@@ -512,14 +547,14 @@ export function AdaptiveModalSheet({
         <SheetHeaderView header={header} onClose={onClose} testID={testID} />
         {scrollable ? (
           <BottomSheetScrollView
-            contentContainerStyle={styles.bottomSheetContent}
+            contentContainerStyle={bottomSheetContentStyle}
             keyboardShouldPersistTaps="handled"
             showsVerticalScrollIndicator={false}
           >
             {children}
           </BottomSheetScrollView>
         ) : (
-          <View style={styles.bottomSheetStaticContent}>{children}</View>
+          <View style={bottomSheetStaticContentStyle}>{children}</View>
         )}
         {footer ? <View style={footerStyle}>{footer}</View> : null}
       </IsolatedBottomSheetModal>

packages/app/src/composer/input/input.tsx

@@ -143,7 +143,7 @@ const DEFAULT_MAX_INPUT_HEIGHT = 160;
 const MAX_INPUT_VIEWPORT_RATIO = 0.5;
 const MIN_INPUT_HEIGHT = isWeb ? MIN_INPUT_HEIGHT_DESKTOP : MIN_INPUT_HEIGHT_MOBILE;
 const ATTACHMENT_SHEET_HEADER: SheetHeader = { title: "Add attachment" };
-const ATTACHMENT_SHEET_SNAP_POINTS = ["28%", "45%"];
+const ATTACHMENT_SHEET_SNAP_POINTS = ["34%", "45%"];
 
 type WebTextInputKeyPressEvent = NativeSyntheticEvent<
   TextInputKeyPressEventData & {