feat(qt): add lifecycle and vote-aware sorting in proposal list

Author: kwvg

src/qt/proposalmodel.cpp

@@ -234,8 +234,22 @@ QVariant ProposalModel::data(const QModelIndex& index, int role) const
     {
         // Edit role is used for sorting, so return the raw values where possible
         switch (index.column()) {
-        case Column::STATUS:
-            return static_cast<int>(proposal->status(isFundable));
+        case Column::STATUS: {
+            // Two-level sort: status group (passing before failing), then
+            // vote margin within each group (winning by most sorts first).
+            const auto deficit{nAbsVoteReq - proposal->getAbsoluteYesCount()};
+            switch (proposal->status(isFundable)) {
+            case ProposalStatus::Funded:      return (0 << 16) + deficit;
+            case ProposalStatus::Passing:     return (1 << 16) + deficit;
+            case ProposalStatus::Unfunded:    return (2 << 16) + deficit;
+            case ProposalStatus::Voting:      return (3 << 16) + deficit;
+            case ProposalStatus::Confirming:  return (4 << 16) + deficit;
+            case ProposalStatus::Pending:     return (5 << 16) + deficit;
+            case ProposalStatus::Failing:     return (6 << 16) + deficit;
+            case ProposalStatus::Lapsed:      return (7 << 16) + deficit;
+            } // no default case, so the compiler can warn about missing cases
+            return 0;
+        }
         case Column::HASH:
             return proposal->hash();
         case Column::TITLE: