chore: local workflow proxying methods to pass context (#6263)

What:
- When calling a module's method inside a Local Workflow the MedusaContext is passed as the last argument to the method if not provided
- Add `requestId` to req
- A couple of fixes on Remote Joiner and the data fetcher for internal services

Why:
- The context used to initialize the workflow has to be shared with all modules. properties like transactionId will be used to emit events and requestId to trace logs for example.

packages/workflows-sdk/src/helper/workflow-export.ts

@@ -9,6 +9,7 @@ import {
 import { Context, LoadedModule, MedusaContainer } from "@medusajs/types"
 
 import { MedusaModule } from "@medusajs/modules-sdk"
+import { MedusaContextType } from "@medusajs/utils"
 import { EOL } from "os"
 import { ulid } from "ulid"
 import { MedusaWorkflow } from "../medusa-workflow"
@@ -159,7 +160,7 @@ function createContextualWorkflowRunner<
     )
   }
 
-  const flow = new LocalWorkflow(workflowId, container)
+  const flow = new LocalWorkflow(workflowId, container!)
 
   const originalRun = flow.run.bind(flow)
   const originalRegisterStepSuccess = flow.registerStepSuccess.bind(flow)
@@ -197,7 +198,13 @@ function createContextualWorkflowRunner<
   }
 
   const newRun = async (
-    { input, context, throwOnError, resultFrom, events }: FlowRunOptions = {
+    {
+      input,
+      context: outerContext,
+      throwOnError,
+      resultFrom,
+      events,
+    }: FlowRunOptions = {
       throwOnError: true,
       resultFrom: defaultResult,
     }
@@ -205,6 +212,13 @@ function createContextualWorkflowRunner<
     resultFrom ??= defaultResult
     throwOnError ??= true
 
+    const context = {
+      ...outerContext,
+      __type: MedusaContextType,
+    }
+
+    context.transactionId ??= ulid()
+
     if (typeof dataPreparation === "function") {
       try {
         const copyInput = input ? JSON.parse(JSON.stringify(input)) : input
@@ -224,7 +238,7 @@ function createContextualWorkflowRunner<
     return await originalExecution(
       originalRun,
       { throwOnError, resultFrom },
-      context?.transactionId ?? ulid(),
+      context.transactionId,
       input,
       context,
       events
@@ -236,7 +250,7 @@ function createContextualWorkflowRunner<
     {
       response,
       idempotencyKey,
-      context,
+      context: outerContext,
       throwOnError,
       resultFrom,
       events,
@@ -249,6 +263,13 @@ function createContextualWorkflowRunner<
     resultFrom ??= defaultResult
     throwOnError ??= true
 
+    const [, transactionId] = idempotencyKey.split(":")
+    const context = {
+      ...outerContext,
+      transactionId,
+      __type: MedusaContextType,
+    }
+
     return await originalExecution(
       originalRegisterStepSuccess,
       { throwOnError, resultFrom },
@@ -264,7 +285,7 @@ function createContextualWorkflowRunner<
     {
       response,
       idempotencyKey,
-      context,
+      context: outerContext,
       throwOnError,
       resultFrom,
       events,
@@ -277,6 +298,13 @@ function createContextualWorkflowRunner<
     resultFrom ??= defaultResult
     throwOnError ??= true
 
+    const [, transactionId] = idempotencyKey.split(":")
+    const context = {
+      ...outerContext,
+      transactionId,
+      __type: MedusaContextType,
+    }
+
     return await originalExecution(
       originalRegisterStepFailure,
       { throwOnError, resultFrom },