feat(bff): Add App Version management endpoints

- Add appversion.proto with GetAll, Get, Update RPCs
- Add GetAllAppVersionsQuery and handler
- Add UpdateAppVersionCommand and handler
- Add AppVersionService gRPC service
- Add AppVersionProfile for Mapster mappings
- Update IApplicationContractContext with AppVersions client
- Bump Configuration.Protobuf to 1.0.20

src/Protobufs/BackOffice.BFF.Configuration.Protobuf/BackOffice.BFF.Configuration.Protobuf.csproj

@@ -6,7 +6,7 @@
         <Nullable>enable</Nullable>
         <IsPackable>true</IsPackable>
         <PackageId>Foursat.BackOffice.BFF.Configuration.Protobuf</PackageId>
-        <Version>1.0.7</Version>
+        <Version>1.0.20</Version>
         <Authors>FourSat</Authors>
         <Company>FourSat</Company>
         <Product>Foursat.BackOffice.BFF.Configuration.Protobuf</Product>
@@ -25,6 +25,7 @@
 
     <ItemGroup>
         <Protobuf Include="Protos\configuration.proto" ProtoRoot="Protos\" GrpcServices="Both" AdditionalImportDirs="..\BackOffice.BFF.Common.Protobuf\Protos"/>
+        <Protobuf Include="Protos\appversion.proto" ProtoRoot="Protos\" GrpcServices="Both" AdditionalImportDirs="..\BackOffice.BFF.Common.Protobuf\Protos"/>
     </ItemGroup>
 
     <ItemGroup>

src/Protobufs/BackOffice.BFF.Configuration.Protobuf/Protos/appversion.proto

@@ -0,0 +1,88 @@
+syntax = "proto3";
+
+package appversion;
+
+import "google/protobuf/empty.proto";
+import "google/protobuf/wrappers.proto";
+import "google/protobuf/timestamp.proto";
+import "google/api/annotations.proto";
+
+option csharp_namespace = "BackOffice.BFF.Configuration.Protobuf.Protos.AppVersion";
+
+// Service for managing app versions (admin panel)
+service AppVersionContract
+{
+    // Get all app versions
+    rpc GetAllAppVersions(GetAllAppVersionsRequest) returns (GetAllAppVersionsResponse){
+        option (google.api.http) = {
+            get: "/AppVersion/GetAll"
+        };
+    };
+    
+    // Get single app version
+    rpc GetAppVersion(GetAppVersionRequest) returns (GetAppVersionResponse){
+        option (google.api.http) = {
+            get: "/AppVersion/Get"
+        };
+    };
+    
+    // Update/Create app version
+    rpc UpdateAppVersion(UpdateAppVersionRequest) returns (google.protobuf.Empty){
+        option (google.api.http) = {
+            post: "/AppVersion/Update"
+            body: "*"
+        };
+    };
+}
+
+// Request to get all app versions
+message GetAllAppVersionsRequest
+{
+    bool include_inactive = 1;
+}
+
+// Response with all app versions
+message GetAllAppVersionsResponse
+{
+    repeated AppVersionItem items = 1;
+}
+
+// Request to get single app version
+message GetAppVersionRequest
+{
+    string app_name = 1;
+}
+
+// Response with version info
+message GetAppVersionResponse
+{
+    bool found = 1;
+    AppVersionItem item = 2;
+}
+
+// Request to update/create app version
+message UpdateAppVersionRequest
+{
+    string app_name = 1;
+    string current_version = 2;
+    google.protobuf.StringValue min_required_version = 3;
+    bool requires_full_cache_clear = 4;
+    google.protobuf.StringValue update_message = 5;
+    google.protobuf.StringValue release_notes = 6;
+    google.protobuf.StringValue update_reason = 7; // For admin logs
+}
+
+// App version item
+message AppVersionItem
+{
+    int64 id = 1;
+    string app_name = 2;
+    string current_version = 3;
+    string min_required_version = 4;
+    bool requires_full_cache_clear = 5;
+    string update_message = 6;
+    string release_notes = 7;
+    bool is_active = 8;
+    google.protobuf.Timestamp created = 9;
+    google.protobuf.Timestamp last_modified = 10;
+}