Fix stale story-unlock and post-evolve weapon state

server/internal/userdata/changed_tables.go

@@ -294,17 +294,16 @@ func ComputeDelta(before, after *store.UserState, changedTables []string) map[st
 	diff := make(map[string]*pb.DiffData, len(changedTables))
 	for _, table := range changedTables {
 		afterJSON := projectTable(table, *after)
+		updates := afterJSON
 		deleteKeys := "[]"
 		if kf := keyFieldsForTable(table); len(kf) > 0 {
-			beforeJSON := projectTable(table, *before)
-			deleteKeys = ComputeDeleteKeys(
-				parseJSONRecords(beforeJSON),
-				parseJSONRecords(afterJSON),
-				kf,
-			)
+			beforeRecs := parseJSONRecords(projectTable(table, *before))
+			afterRecs := parseJSONRecords(afterJSON)
+			updates = ComputeUpdateRecords(beforeRecs, afterRecs, kf)
+			deleteKeys = ComputeDeleteKeys(beforeRecs, afterRecs, kf)
 		}
 		diff[table] = &pb.DiffData{
-			UpdateRecordsJson: afterJSON,
+			UpdateRecordsJson: updates,
 			DeleteKeysJson:    deleteKeys,
 		}
 	}

server/internal/userdata/diffset.go

@@ -3,6 +3,7 @@ package userdata
 import (
 	"encoding/json"
 	"fmt"
+	"reflect"
 	"strings"
 
 	pb "lunar-tear/server/gen/proto"
@@ -120,6 +121,34 @@ func ComputeDeleteKeys(oldRecords, newRecords []map[string]any, keyFields []stri
 	return string(b)
 }
 
+func ComputeUpdateRecords(oldRecords, newRecords []map[string]any, keyFields []string) string {
+	if len(newRecords) == 0 {
+		return "[]"
+	}
+
+	oldByKey := make(map[string]map[string]any, len(oldRecords))
+	for _, r := range oldRecords {
+		oldByKey[compositeKey(r, keyFields)] = r
+	}
+
+	var changed []map[string]any
+	for _, r := range newRecords {
+		prev, exists := oldByKey[compositeKey(r, keyFields)]
+		if !exists || !reflect.DeepEqual(prev, r) {
+			changed = append(changed, r)
+		}
+	}
+
+	if len(changed) == 0 {
+		return "[]"
+	}
+	b, err := json.Marshal(changed)
+	if err != nil {
+		return "[]"
+	}
+	return string(b)
+}
+
 func compositeKey(record map[string]any, fields []string) string {
 	var sb strings.Builder
 	for i, f := range fields {