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_tooltip.cpp

@@ -5,12 +5,13 @@
 // match); placement BELOW the anchor centred; horizontal clamp at both client edges; the
 // bottom-edge flip to ABOVE; the both-clip clamp for a tall tooltip; degenerate inputs -> empty.
 
-#include "../src/tooltip.h"
+#include "../src/core/ui/tooltip.h"
 
 #include <cstdio>
 #include <string>
 
 using namespace reasampler;
+using namespace reasampler::ui;
 
 static int g_fail = 0;
 #define CHECK(cond) do { if(!(cond)) { \