Phase 8d: Proto cleanup — delete 4 deprecated RPCs + 8 deprecated messages

- Deleted RPCs: PurchaseGoldenPackage, VerifyGoldenPackagePurchase,
  InitiateBasePackagePayment, VerifyBasePackagePayment
- Deleted messages: PurchaseGoldenPackage{Request,Response},
  VerifyGoldenPackagePurchase{Request,Response},
  InitiateBasePackagePayment{Request,Response},
  VerifyBasePackagePayment{Request,Response}
- Kept: GetUserPackageStatus (still in use)
- NuGet version bump: 0.0.185 → 0.0.186

src/CMSMicroservice.Protobuf/CMSMicroservice.Protobuf.csproj

@@ -3,7 +3,7 @@
     <TargetFramework>net9.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
-    <Version>0.0.185</Version>
+    <Version>0.0.186</Version>
     <DebugType>None</DebugType>
     <DebugSymbols>False</DebugSymbols>
     <GeneratePackageOnBuild>False</GeneratePackageOnBuild>

src/CMSMicroservice.Protobuf/Protos/package.proto

@@ -44,43 +44,12 @@ service PackageContract
         };
     };
     
-    // Package Purchase System (Legacy — use Customer* RPCs instead)
-    rpc PurchaseGoldenPackage(PurchaseGoldenPackageRequest) returns (PurchaseGoldenPackageResponse){
-        option deprecated = true;
-        option (google.api.http) = {
-            post: "/PurchaseGoldenPackage"
-            body: "*"
-        };
-    };
-    rpc VerifyGoldenPackagePurchase(VerifyGoldenPackagePurchaseRequest) returns (VerifyGoldenPackagePurchaseResponse){
-        option deprecated = true;
-        option (google.api.http) = {
-            post: "/VerifyGoldenPackagePurchase"
-            body: "*"
-        };
-    };
     rpc GetUserPackageStatus(GetUserPackageStatusRequest) returns (GetUserPackageStatusResponse){
         option (google.api.http) = {
             get: "/GetUserPackageStatus"
         };
     };
     
-    // Base Package Payment (Legacy — migrate to Customer* RPCs, then remove)
-    rpc InitiateBasePackagePayment(InitiateBasePackagePaymentRequest) returns (InitiateBasePackagePaymentResponse){
-        option deprecated = true;
-        option (google.api.http) = {
-            post: "/InitiateBasePackagePayment"
-            body: "*"
-        };
-    };
-    rpc VerifyBasePackagePayment(VerifyBasePackagePaymentRequest) returns (VerifyBasePackagePaymentResponse){
-        option deprecated = true;
-        option (google.api.http) = {
-            post: "/VerifyBasePackagePayment"
-            body: "*"
-        };
-    };
-    
     // ============= Customer-specific Methods =============
     
     rpc GetCustomerPackages(GetCustomerPackagesRequest) returns (GetCustomerPackagesResponse){
@@ -224,40 +193,6 @@ message GetAllPackageByFilterResponseModel
     int64 magic_wallet_max_credit = 17;
 }
 
-// Package Purchase Messages
-message PurchaseGoldenPackageRequest
-{
-    int64 user_id = 1;
-    int64 package_id = 2;
-    string return_url = 3;
-}
-
-message PurchaseGoldenPackageResponse
-{
-    bool success = 1;
-    string message = 2;
-    int64 order_id = 3;
-    string payment_gateway_url = 4;
-    string tracking_code = 5;
-}
-
-message VerifyGoldenPackagePurchaseRequest
-{
-    int64 order_id = 1;
-    string authority = 2;
-    string status = 3;
-}
-
-message VerifyGoldenPackagePurchaseResponse
-{
-    bool success = 1;
-    string message = 2;
-    int64 order_id = 3;
-    int64 transaction_id = 4;
-    string reference_code = 5;
-    int64 wallet_balance = 6;
-}
-
 message GetUserPackageStatusRequest
 {
     int64 user_id = 1;
@@ -276,43 +211,6 @@ message GetUserPackageStatusResponse
     google.protobuf.Timestamp last_purchase_date = 9;
 }
 
-// Base Package Payment Messages
-message InitiateBasePackagePaymentRequest
-{
-    int64 user_id = 1;
-    string callback_url = 2; // Payment gateway callback URL
-}
-
-message InitiateBasePackagePaymentResponse
-{
-    bool success = 1;
-    string message = 2;
-    int64 order_id = 3;
-    int64 transaction_id = 4;
-    int64 amount = 5;
-    string payment_gateway_url = 6;
-}
-
-message VerifyBasePackagePaymentRequest
-{
-    int64 order_id = 1;
-    int64 transaction_id = 2;
-    bool payment_success = 3;
-    google.protobuf.StringValue ref_id = 4;
-    google.protobuf.StringValue message = 5;
-}
-
-message VerifyBasePackagePaymentResponse
-{
-    bool success = 1;
-    string message = 2;
-    int64 order_id = 3;
-    int64 transaction_id = 4;
-    google.protobuf.StringValue reference_code = 5;
-    int64 wallet_balance = 6;
-    int64 discount_balance = 7;
-}
-
 // ============= Customer Message Types =============
 
 message GetCustomerPackagesRequest