clean up and standardize types across the codebase, unify atomic operations, improve UTF-8 handling throughout the system, remove obsolete input and named queue interfaces, redesign process preparation and creation, tighten IPC and service boundaries, improve error handling and reliability, minor documentation cleanup, fix doom surfaces, fix panic in ini parsing.

code/user/tests/process_exit_multithread_smoke/process_exit_multithread_smoke.c

@@ -1,5 +1,6 @@
 // Whole-process exit regression test. A blocked sibling must not keep the process alive.
 
+#include <stdbool.h>
 #include <stdint.h>
 #include <string.h>
 #include <ntlite/syscall.h>
@@ -33,7 +34,7 @@ static void fail(const char* message) {
 }
 
 // Returns whether one string view exactly matches one NUL-terminated string.
-static int view_equals_cstr(SYS_STRING_VIEW view, const char* text) {
+static bool view_equals_cstr(SYS_STRING_VIEW view, const char* text) {
     size_t length = strlen(text);
     return view.Data && view.Length == length && memcmp(view.Data, text, length) == 0;
 }