feat(sdk-android): snapshot property delegate + feature-scoped files + screen fix (#34)

* rename web to inspect ui

* feat(sdk-android): add camelToSnakeCase conversion

* feat(sdk-android): add snapshot() property delegate with tests

* feat(folio): add feature-scoped sanderling snapshot objects

* refactor(folio): slim FolioApplication to snapshot object references

* fix(folio): rename route snapshot to screen, update spec.ts

inspect-ui/src/hooks/useKeyboardNav.ts

@@ -0,0 +1,76 @@
+import { useEffect } from "react";
+
+export interface UseKeyboardNavOptions {
+  onPrev: () => void;
+  onNext: () => void;
+  onJumpStart: () => void;
+  onJumpEnd: () => void;
+  onJumpPrev10: () => void;
+  onJumpNext10: () => void;
+  onJumpNextViolation: () => void;
+}
+
+const NAVIGATION_TAGS = new Set(["INPUT", "TEXTAREA", "SELECT"]);
+const ARROW_OWNING_ROLES = new Set(["tab", "tablist", "option", "listbox", "menuitem", "menu"]);
+
+function targetOwnsArrowKeys(target: HTMLElement | null): boolean {
+  let node: HTMLElement | null = target;
+  while (node) {
+    const role = node.getAttribute?.("role");
+    if (role && ARROW_OWNING_ROLES.has(role)) return true;
+    node = node.parentElement;
+  }
+  return false;
+}
+
+export function useKeyboardNav(options: UseKeyboardNavOptions) {
+  useEffect(() => {
+    const handler = (event: KeyboardEvent) => {
+      const target = event.target as HTMLElement | null;
+      if (target && (NAVIGATION_TAGS.has(target.tagName) || target.isContentEditable)) {
+        return;
+      }
+      const isArrow = event.key.startsWith("Arrow");
+      if (isArrow && targetOwnsArrowKeys(target)) {
+        return;
+      }
+      if (event.metaKey || event.ctrlKey || event.altKey) {
+        return;
+      }
+      switch (event.key) {
+        case "ArrowLeft":
+        case "k":
+          if (event.shiftKey) {
+            options.onJumpPrev10();
+          } else {
+            options.onPrev();
+          }
+          event.preventDefault();
+          return;
+        case "ArrowRight":
+        case "j":
+          if (event.shiftKey) {
+            options.onJumpNext10();
+          } else {
+            options.onNext();
+          }
+          event.preventDefault();
+          return;
+        case "g":
+          options.onJumpStart();
+          event.preventDefault();
+          return;
+        case "G":
+          options.onJumpEnd();
+          event.preventDefault();
+          return;
+        case ".":
+          options.onJumpNextViolation();
+          event.preventDefault();
+          return;
+      }
+    };
+    window.addEventListener("keydown", handler);
+    return () => window.removeEventListener("keydown", handler);
+  }, [options]);
+}