feat(persistence): FLIGHT_SCHD_DISPLAY 兼容视图 + 生产读切明细权威 (ACM2-29 P2-2)

- V1.3.1 迁移：flight_schd_display 视图投影首个/第二个资源与总数（gate1/gate2/
  gate_total、chkc1/chkc2/checkin_total、belt1/belt_total、dely_code/strt），
  完整明细仍在各明细表可查；PG LATERAL 方言，11g 随 P3-B 单独提供
- 生产读路径 mapFlightRow 切 assembleDetailOnly：集合键仅由明细表重建，
  不再回退 V1.2.0 槽位/里程碑列（过渡双读仅保留在 FS7 对拍工具内）
- FlightStateEngine 正确性修复：序号属性 "0" 条目现在正确翻译为显式 Clear
  （原实现 items 非空走 Replace，会存出 GTNO=0 脏明细行）；混入常规条目的
  0 标记 fail fast 拒绝猜测（v2 §4 非法结构显式失败）
- JDBC 用例全部切 v2 写路径（persistNextStates），删除 legacy 写路径断言；
  新增：显示视图投影/替换同步用例、明细级联删除断言、引擎 0 标记语义单测

验证：MSGX_PG_PORT=5433 真实 PG ./gradlew test --rerun-tasks
97 用例 0 失败 0 跳过

src/test/kotlin/com/gzzn/omms/msgexchange/domain/flight/FlightStateEngineTest.kt

@@ -106,4 +106,40 @@ class FlightStateEngineTest {
         )
         assertEquals("NEW", next.collections["GTDT"]!![0]["GATE"])
     }
+
+    @Test
+    fun `zero sequence marker alone translates to explicit clear`() {
+        val commands = FlightStateEngine.commandsFromFields(
+            "F1",
+            mapOf("GTDT" to """[{"GTNO":"0"}]"""),
+            snapshotReplace = false,
+        )
+        assertEquals(CollectionCommand.Clear, commands.collections["GTDT"])
+    }
+
+    @Test
+    fun `zero sequence marker mixed with regular items fails fast instead of guessing`() {
+        val error = runCatching {
+            FlightStateEngine.commandsFromFields(
+                "F1",
+                mapOf("GTDT" to """[{"GTNO":"1","GATE":"A1"},{"GTNO":"0"}]"""),
+                snapshotReplace = false,
+            )
+        }.exceptionOrNull()
+        assertTrue(error is IllegalArgumentException)
+    }
+
+    @Test
+    fun `empty array replaces collection with empty set keeping key semantics`() {
+        val current = FlightNextState(
+            "F1",
+            emptyMap(),
+            mapOf("GTDT" to listOf(mapOf("GTNO" to "1", "GATE" to "A1"))),
+            1L,
+            "m1",
+        )
+        val commands = FlightStateEngine.commandsFromFields("F1", mapOf("GTDT" to "[]"), snapshotReplace = false)
+        val next = FlightStateEngine.apply(current, commands, "m2", bumpVersion = true)
+        assertEquals(emptyList<Map<String, String>>(), next.collections["GTDT"])
+    }
 }