chore: rename source to linkable in defineLink options (#8016)

* chore: rename source to linkable in defineLink options

* rm unused const

packages/core/utils/src/modules-sdk/define-link.ts

@@ -23,7 +23,7 @@ type InputToJson = {
 type CombinedSource = Record<any, any> & InputToJson
 
 type InputOptions = {
-  source: CombinedSource | InputSource
+  linkable: CombinedSource | InputSource
   isList?: boolean
 }
 
@@ -52,7 +52,7 @@ type ModuleLinkableKeyConfig = {
 }
 
 function isInputOptions(input: any): input is InputOptions {
-  return isObject(input) && "source" in input
+  return isObject(input) && "linkable" in input
 }
 
 function isInputSource(input: any): input is InputSource {
@@ -82,9 +82,9 @@ export function defineLink(
       module: source.serviceName,
     }
   } else if (isInputOptions(leftService)) {
-    const source = isToJSON(leftService.source)
-      ? leftService.source.toJSON()
-      : leftService.source
+    const source = isToJSON(leftService.linkable)
+      ? leftService.linkable.toJSON()
+      : leftService.linkable
 
     serviceAObj = {
       key: source.linkable,
@@ -108,9 +108,9 @@ export function defineLink(
       module: source.serviceName,
     }
   } else if (isInputOptions(rightService)) {
-    const source = isToJSON(rightService.source)
-      ? rightService.source.toJSON()
-      : rightService.source
+    const source = isToJSON(rightService.linkable)
+      ? rightService.linkable.toJSON()
+      : rightService.linkable
 
     serviceBObj = {
       key: source.linkable,