Split DTOs into api/model, extract order matching into service/matching

Moves Event/Ledger DTOs out of the flat api package into
api/model/{event,ledger}, and moves LocalCatalogContext and order
matching logic into dedicated service/catalog and service/matching
packages, replacing TradingOperation/TradingOperationImpl.

3 files changed, 35 insertions, 0 deletions

diff --git a/api/src/main/java/market/guess/model/event/EventDetailDTO.java b/api/src/main/java/market/guess/model/event/EventDetailDTO.java
new file mode 100644
index 0000000..e45458b
--- /dev/null
+++ b/api/src/main/java/market/guess/model/event/EventDetailDTO.java
@@ -0,0 +1,11 @@
+package market.guess.model.event;
+
+import java.util.List;
+import market.guess.api.MarketStateDTO;
+import market.guess.api.TradeRowDTO;
+
+public record EventDetailDTO(
+    EventSummaryDTO summary,
+    MarketStateDTO state,
+    List<TradeRowDTO> history,
+    String winningOption) {}
diff --git a/api/src/main/java/market/guess/model/event/EventStatus.java b/api/src/main/java/market/guess/model/event/EventStatus.java
new file mode 100644
index 0000000..c6460f9
--- /dev/null
+++ b/api/src/main/java/market/guess/model/event/EventStatus.java
@@ -0,0 +1,7 @@
+package market.guess.model.event;
+
+public enum EventStatus {
+  DRAFT,
+  ACTIVE,
+  SETTLED
+}
diff --git a/api/src/main/java/market/guess/model/event/EventSummaryDTO.java b/api/src/main/java/market/guess/model/event/EventSummaryDTO.java
new file mode 100644
index 0000000..1595f81
--- /dev/null
+++ b/api/src/main/java/market/guess/model/event/EventSummaryDTO.java
@@ -0,0 +1,17 @@
+package market.guess.model.event;
+
+import java.util.List;
+import market.guess.api.CommissionTiming;
+import market.guess.api.MechanismType;
+
+public record EventSummaryDTO(
+    String key,
+    int displayId,
+    String name,
+    String description,
+    int commissionPercent,
+    CommissionTiming commissionTiming,
+    MechanismType mechanism,
+    EventStatus status,
+    List<String> optionNames,
+    String accountBalance) {}