Add ServerCatPremium tweaks, build files and docs

ServerCatPremium/Tweak.x

@@ -0,0 +1,39 @@
+#import <substrate.h>
+#import <mach-o/dyld.h>
+#import <string.h>
+#import <Foundation/Foundation.h>
+
+#define TARGET_MODULE       "ServerCat"
+#define IDA_BASE            0x100000000
+#define ADDR_IS_PREMIUM     0x10009CD24  // Address of "isPremiumActive" in IDA (adjust if needed)
+
+static int (*orig_isPremiumActive)();
+static int hook_isPremiumActive() { 
+	return 1; 
+}
+
+%ctor {
+    for (uint32_t i = 0; i < _dyld_image_count(); i++) {
+        const char *name = _dyld_get_image_name(i);
+        if (name && strstr(name, TARGET_MODULE)) {
+            uintptr_t base = (uintptr_t)_dyld_get_image_header(i);
+			uintptr_t addr = base + (ADDR_IS_PREMIUM - IDA_BASE);
+            MSHookFunction((void *)addr, (void *)hook_isPremiumActive, (void **)&orig_isPremiumActive);
+			NSLog(@"[ServerCatPremium] Hooked isPremiumActive at 0x%lx", addr);
+            return;
+        }
+    }
+}
+
+// iOS 16 Crash Fix
+%hook CKContainer
++ (id)defaultContainer {
+    return nil;
+}
+
++ (id)containerWithIdentifier:(id)arg1 {
+    arg1 = nil;
+    return nil;
+    return %orig;
+}
+%end