globals => shared struct

[Mzack9999]

Proposed changes

Closes #5239

Checklist

• Pull request is created against the dev branch
• All checks passed (lint, unit/integration/regression tests etc.) with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[tarunKoyalwar]

sharing some thoughts about removing global dialer from javascript protocols

i think the challenging part would be to remove global dialer references from javascript modules at js/libs from my research on this it seems there are two ways

• fork goja and add context support to .Run and expose it as first argument of any/all functions/methods ( ex: currently in goja, when first argument of function is set to runtime instance (

  nuclei/pkg/js/libs/bytes/buffer.go

  Lines 29 to 40 in 9a441c2

  	// NewBuffer creates a new buffer from a byte slice.
  	func NewBuffer(call goja.ConstructorCall, runtime *goja.Runtime) *goja.Object {
  	if len(call.Arguments) > 0 {
  	if arg, ok := call.Argument(0).Export().([]byte); ok {
  	return utils.LinkConstructor(call, runtime, &Buffer{buf: arg})
  	} else {
  	utils.NewNucleiJS(runtime).Throw("Invalid argument type. Expected bytes/Uint8Array as input but got %T", call.Argument(0).Export())
  	}
  	}
  	return utils.LinkConstructor(call, runtime, &Buffer{})
  	}

  ) , the current runtime used in exposed/shared here. in similar way we can add support for context.Context, this will be helpful to pass dialer instance with context.Value as well as context support in javascript protocol ( which is not supported yet, we have global runtime timeout but that's not the same thing i guess)

• another way i can think is similar to ^ but instead of fork and updating core, we can use code generation while generating bindings ( https://github.com/projectdiscovery/nuclei/blob/dev/pkg/js/generated/go/libbytes/bytes.go)

imo i think more scalable + easier approach would be 1) because it will improve other components as well ( ex: flow , pre-condition etc )

cc: @Mzack9999 , @Ice3man543