feat: add GetAvailableWeeks query and update protobuf imports

src/Protobufs/BackOffice.BFF.Commission.Protobuf/Protos/commission.proto

@@ -105,6 +105,11 @@ service CommissionContract
             get: "/GetWorkerExecutionLogs"
         };
     };
+    rpc GetAvailableWeeks(GetAvailableWeeksRequest) returns (GetAvailableWeeksResponse){
+        option (google.api.http) = {
+            get: "/GetAvailableWeeks"
+        };
+    };
     rpc GetWithdrawalReports(GetWithdrawalReportsRequest) returns (GetWithdrawalReportsResponse){
         option (google.api.http) = {
             get: "/GetWithdrawalReports"
@@ -457,3 +462,32 @@ message WithdrawalSummary
     int32 unique_users = 7;
     float success_rate = 8; // Percentage (0-100)
 }
+
+// ============ GetAvailableWeeks ============
+
+message GetAvailableWeeksRequest
+{
+    int32 future_weeks_count = 1; // تعداد هفته‌های آینده (پیش‌فرض: 4)
+    int32 past_weeks_count = 2;   // تعداد هفته‌های گذشته (پیش‌فرض: 12)
+}
+
+message GetAvailableWeeksResponse
+{
+    WeekInfo current_week = 1;
+    repeated WeekInfo calculated_weeks = 2;
+    repeated WeekInfo pending_weeks = 3;
+    repeated WeekInfo future_weeks = 4;
+}
+
+message WeekInfo
+{
+    string week_number = 1;              // YYYY-Www format
+    google.protobuf.Timestamp start_date = 2;
+    google.protobuf.Timestamp end_date = 3;
+    bool is_calculated = 4;
+    google.protobuf.Timestamp calculated_at = 5;
+    string last_execution_status = 6;
+    int64 total_pool_amount = 7;
+    int32 eligible_users_count = 8;
+    string display_text = 9;             // نمایش فارسی برای UI
+}