fix(acm2-107): finalize /all/flights contract and FLTR JSON payload

Close Q21 into C-11 and emit day-schedule FLTR-shaped JSON for Redis, schd, and query responses.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/test/kotlin/com/gzzn/omms/msgexchange/ingress/FlightQueryControllerTest.kt

@@ -8,7 +8,7 @@ import org.junit.jupiter.api.Assertions.assertFalse
 import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.Test
 
-/** `GET /all/flights`：投影读、过滤共享航班、失败时 503（`US-12`、`C-11`、`Q21` 暂定）。 */
+/** `GET /all/flights`：投影读、过滤共享航班、失败时 503（`US-12`、`C-11`）。 */
 class FlightQueryControllerTest {
 
     private val mapper = ObjectMapper()
@@ -16,8 +16,8 @@ class FlightQueryControllerTest {
     @Test
     fun `returns bare JSON array of non-shared flights`() {
         val projection = StubFlightProjectionPort()
-        projection.snapshots["1"] = """{"flid":"1","scalars":{"MAID":""}}"""
-        projection.snapshots["2"] = """{"flid":"2","scalars":{"MAID":"1"}}"""
+        projection.snapshots["1"] = """{"FLID":"1","FLNO":"CA001"}"""
+        projection.snapshots["2"] = """{"FLID":"2","FLNO":"CA002","MAID":"1"}"""
         val controller = FlightQueryController(projection, mapper)
 
         val response = controller.all()
@@ -26,7 +26,8 @@ class FlightQueryControllerTest {
         val root = mapper.readTree(response.body()!!)
         assertTrue(root.isArray)
         assertEquals(1, root.size())
-        assertEquals("1", root[0].path("flid").asText())
+        assertEquals("1", root[0].path("FLID").asText())
+        assertEquals("CA001", root[0].path("FLNO").asText())
     }
 
     @Test

src/test/kotlin/com/gzzn/omms/msgexchange/processing/FlightPayloadTest.kt

@@ -0,0 +1,45 @@
+package com.gzzn.omms.msgexchange.processing
+
+import com.gzzn.omms.msgexchange.domain.flight.FlightSnapshot
+import com.gzzn.omms.msgexchange.domain.flight.FlightState
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertFalse
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+
+/** 投影/`schd` 载荷是日计划 `FLTR` 转 JSON（`C-9`、`C-11`）。 */
+class FlightPayloadTest {
+
+    @Test
+    fun `emits FLTR-shaped JSON and omits empty fields and internal version`() {
+        val snapshot = FlightSnapshot(
+            flid = "121112312",
+            operationDay = null,
+            state = FlightState.ACTIVE,
+            stateVersion = 7,
+            scalars = mapOf(
+                "FLNO" to "UA724",
+                "MAID" to "",
+                "REMC" to "keep",
+            ),
+            collections = mapOf(
+                "GTDT" to listOf(mapOf("GATE" to "G28")),
+                "DELY" to emptyList(),
+            ),
+        )
+
+        val payload = flightPayload(snapshot)
+
+        assertEquals("121112312", payload["FLID"])
+        assertEquals("UA724", payload["FLNO"])
+        assertEquals("keep", payload["REMC"])
+        assertEquals(listOf(mapOf("GATE" to "G28")), payload["GTDT"])
+        assertFalse(payload.containsKey("MAID"))
+        assertFalse(payload.containsKey("DELY"))
+        assertFalse(payload.containsKey("stateVersion"))
+        assertFalse(payload.containsKey("scalars"))
+        assertFalse(payload.containsKey("collections"))
+        assertFalse(payload.containsKey("flid"))
+        assertTrue(payload.keys.first() == "FLID")
+    }
+}