+ added helper scripts

+ moved uis into own files
+ log is not rerendered in full anymore

main/include/lcd/ui_log.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "lvgl.h"
+
+// Appends a line to the scrollback log. Safe to call before the log view
+// exists and from any task; the line is always stored in the ring buffer.
+void ui_log_append(const char *text);
+void ui_log_appendf(const char *format, ...);
+
+// Builds the log view (title + textarea) onto the given screen and restores
+// the ring-buffer history. The caller must hold the LVGL lock.
+void ui_log_build_view(lv_obj_t *screen);
+
+// Drops the textarea reference; call before the active screen is cleared.
+void ui_log_detach(void);