feat(core-flows,fulfillment, fulfillment-manual, types): make fulfillment typings more specific (#10677)

**What**
- attempt to add more specific type definitions around fulfillment provider APIs

---

CLOSES CMRC-814
CLOSES CMRC-816
CLOSES CMRC-817

packages/modules/providers/fulfillment-manual/src/services/manual-fulfillment.ts

@@ -1,7 +1,10 @@
 import { AbstractFulfillmentProviderService } from "@medusajs/framework/utils"
 import {
   CalculatedShippingOptionPrice,
+  CalculateShippingOptionPriceContext,
+  CreateFulfillmentResult,
   FulfillmentOption,
+  ValidateFulfillmentDataContext,
 } from "@medusajs/types"
 
 // TODO rework type and DTO's
@@ -28,7 +31,7 @@ export class ManualFulfillmentService extends AbstractFulfillmentProviderService
   async validateFulfillmentData(
     optionData: Record<string, unknown>,
     data: Record<string, unknown>,
-    context: Record<string, unknown>
+    context: ValidateFulfillmentDataContext
   ): Promise<any> {
     return data
   }
@@ -36,7 +39,7 @@ export class ManualFulfillmentService extends AbstractFulfillmentProviderService
   async calculatePrice(
     optionData: Record<string, unknown>,
     data: Record<string, unknown>,
-    context: Record<string, unknown>
+    context: CalculateShippingOptionPriceContext
   ): Promise<CalculatedShippingOptionPrice> {
     throw new Error("Manual fulfillment does not support price calculation")
   }
@@ -49,16 +52,22 @@ export class ManualFulfillmentService extends AbstractFulfillmentProviderService
     return true
   }
 
-  async createFulfillment(): Promise<Record<string, any>> {
+  async createFulfillment(): Promise<CreateFulfillmentResult> {
     // No data is being sent anywhere
-    return {}
+    return {
+      data: {},
+      labels: [],
+    }
   }
 
   async cancelFulfillment(): Promise<any> {
     return {}
   }
 
-  async createReturnFulfillment(): Promise<any> {
-    return {}
+  async createReturnFulfillment(): Promise<CreateFulfillmentResult> {
+    return {
+      data: {},
+      labels: [],
+    }
   }
 }