Ship native iOS app, Wiki/TTS backend, and skeleton loading UX.

Replace the WebView shell with SwiftUI screens, add account-scoped Wiki and TTS APIs with adaptive review and photo scan support, and keep web/iOS pages usable while data loads asynchronously.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/tests/test_text_utils.py

@@ -0,0 +1,11 @@
+from services.text_utils import en_answers_match, normalize_en_answer
+
+
+def test_normalize_en_answer_collapses_whitespace():
+    assert normalize_en_answer("  A   Lot   Of  ") == "a lot of"
+
+
+def test_en_answers_match_phrase_with_extra_spaces():
+    assert en_answers_match("a  lot  of", "a lot of")
+    assert en_answers_match("A Lot Of", "a lot of")
+    assert not en_answers_match("a lot", "a lot of")