Merge origin/CTR-Netplay into integrate/game-codegen-hooks-into-rollback

Keep both psx_bss.h (BSS rings) and nd_intro_ot.h from CTR-Netplay.

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

runtime/include/nd_intro_ot.h

@@ -0,0 +1,24 @@
+/* nd_intro_ot.h — CTR Naughty Dog intro OT helpers (debug / accuracy shims). */
+#ifndef PSXRECOMP_ND_INTRO_OT_H
+#define PSXRECOMP_ND_INTRO_OT_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Last WoodEmit batch OT base (model+228). Prefer digit-rain tags. */
+void     psx_nd_note_wood_batch_ot(uint32_t base);
+void     psx_nd_note_wood_batch_ot_tagged(uint32_t base, uint32_t tag);
+uint32_t psx_nd_wood_batch_ot(void);
+
+/* Sibling-scene bump hint at s4+0xb4 (captured at NdIntroSiblingRtptEmit). */
+void     psx_nd_note_sibling_ot_hint(uint32_t base);
+uint32_t psx_nd_sibling_ot_hint(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif