Q-W1 pt2: core/shell/app relocation + sub-namespaces; one concrete ui::Rect (LTRB fork retired); slot_map split from bank_book; BankIndex→BankModel; 59/59 green

tests/test_footer_bar.cpp

@@ -13,11 +13,12 @@
 //   * Hit-test: Toggle / Tail returned for in-bounds points, None outside AND on the count
 //     label (a passive readout, never a control); half-open bounds; suppressed box claims none.
 
-#include "../src/footer_bar.h"
+#include "../src/core/ui/footer_bar.h"
 
 #include <cstdio>
 
 using namespace reasampler;
+using namespace reasampler::ui;
 
 static int g_fail = 0;
 #define CHECK(cond) do { if(!(cond)) { \