Update fuzz tests

.mise.toml

 
 [tasks."test:fuzz:client-handshake"]
 description = "Run fuzzy test for ClientHandshake"
-run = "go test -v {{ vars.fuzzflags }} -fuzz=FuzzClientHandshake ./mtglib/internal/obfuscated2"
+run = "go test -v {{ vars.fuzzflags }} -fuzz=FuzzClientServerHandshake ./mtglib/internal/obfuscation"
 
-[tasks."test:fuzz:server-generate-handshake-frame"]
-description = "Run fuzzy test for ServerGenerateHandshakeFrame"
-run = "go test -v {{ vars.fuzzflags }} -fuzz=FuzzServerGenerateHandshakeFrame ./mtglib/internal/obfuscated2"
-
-[tasks."test:fuzz:server-receive"]
-description = "Run fuzzy test for ServerReceive"
-run = "go test -v {{ vars.fuzzflags }} -fuzz=FuzzServerReceive ./mtglib/internal/obfuscated2"
-
-[tasks."test:fuzz:server-send"]
-description = "Run fuzzy test for ServerSend"
-run = "go test -v {{ vars.fuzzflags }} -fuzz=FuzzServerSend ./mtglib/internal/obfuscated2"
+[tasks."test:fuzz:server-handshake-frame"]
+description = "Run fuzzy test for GenerateHandshakeFrame"
+run = "go test -v {{ vars.fuzzflags }} -fuzz=FuzzGenerateHandshakeFrame ./mtglib/internal/obfuscation"
 
 [tasks.static]
 description = "Build static binary"

mtglib/internal/obfuscation/handshake_frame_fuzz_test.go

 			frame.data[4]|frame.data[5]|frame.data[6]|frame.data[7])
 
 		assert.Equal(t, hfConnectionType[:], frame.connectionType())
+
+		if arg < 0 {
+			arg = -arg
+		} else if arg == 0 {
+			arg = defaultDC
+		}
+
 		assert.EqualValues(t, arg, frame.dc())
 	})
 }