feat: rename 'ZenithOS' => 'MontaukOS' and fix build system issues

programs/include/montauk/string.h

@@ -0,0 +1,71 @@
+/*
+    * string.h
+    * Common string and memory utility functions for MontaukOS programs
+    * Copyright (c) 2025-2026 Daniel Hammer
+*/
+
+#pragma once
+#include <cstdint>
+
+namespace montauk {
+
+    inline int slen(const char* s) {
+        int n = 0;
+        while (s[n]) n++;
+        return n;
+    }
+
+    inline bool streq(const char* a, const char* b) {
+        while (*a && *b) {
+            if (*a != *b) return false;
+            a++; b++;
+        }
+        return *a == *b;
+    }
+
+    inline bool starts_with(const char* str, const char* prefix) {
+        while (*prefix) {
+            if (*str != *prefix) return false;
+            str++; prefix++;
+        }
+        return true;
+    }
+
+    inline const char* skip_spaces(const char* s) {
+        while (*s == ' ') s++;
+        return s;
+    }
+
+    inline void memcpy(void* dst, const void* src, uint64_t n) {
+        auto* d = (uint8_t*)dst;
+        auto* s = (const uint8_t*)src;
+        for (uint64_t i = 0; i < n; i++) d[i] = s[i];
+    }
+
+    inline void memmove(void* dst, const void* src, uint64_t n) {
+        auto* d = (uint8_t*)dst;
+        auto* s = (const uint8_t*)src;
+        if (d < s) {
+            for (uint64_t i = 0; i < n; i++) d[i] = s[i];
+        } else {
+            for (uint64_t i = n; i > 0; i--) d[i-1] = s[i-1];
+        }
+    }
+
+    inline void memset(void* dst, int val, uint64_t n) {
+        auto* d = (uint8_t*)dst;
+        for (uint64_t i = 0; i < n; i++) d[i] = (uint8_t)val;
+    }
+
+    inline void strcpy(char* dst, const char* src) {
+        while (*src) *dst++ = *src++;
+        *dst = '\0';
+    }
+
+    inline void strncpy(char* dst, const char* src, int max) {
+        int i = 0;
+        while (src[i] && i < max - 1) { dst[i] = src[i]; i++; }
+        dst[i] = '\0';
+    }
+
+}