refactor(cleanup-05): remove flat approval/status fields from SessionSnapshot

apps/tui/src/main/kotlin/com/correx/apps/tui/reducer/SessionsReducer.kt

@@ -117,28 +117,26 @@ object SessionsReducer {
         sessionState: SessionsState,
         msg: ServerMessage.SessionSnapshot,
     ): Pair<SessionsState, List<Effect>> {
-        val approvalRequestId = msg.approvalRequestId
-        val approvalInfo = if (msg.pendingApproval && approvalRequestId != null) {
+        val firstPending = msg.pendingApprovals.firstOrNull()
+        val approvalInfo = firstPending?.let {
             ApprovalInfo(
-                requestId = approvalRequestId,
+                requestId = it.requestId,
                 sessionId = msg.sessionId.value,
-                tier = msg.approvalTier ?: "T2",
+                tier = it.tier,
                 riskSummary = "unknown",
-                toolName = msg.approvalToolName,
-                preview = msg.approvalPreview,
+                toolName = null,
+                preview = null,
             )
-        } else null
+        }
+        val status = if (firstPending != null) "PAUSED awaiting approval" else msg.state.status
         val summary = SessionSummary(
             id = msg.sessionId.value,
-            status = when {
-                msg.pendingApproval -> "PAUSED awaiting approval"
-                else -> msg.status
-            },
-            workflowId = msg.workflowId,
-            name = msg.workflowId,
+            status = status,
+            workflowId = msg.sessionId.value,
+            name = msg.sessionId.value,
             lastEventAt = clock(),
-            currentStage = msg.currentStageId,
-            currentStageId = msg.currentStageId,
+            currentStage = msg.state.currentStageId,
+            currentStageId = msg.state.currentStageId,
             pendingApproval = approvalInfo,
         )
         val selected = sessionState.selectedId ?: msg.sessionId.value

apps/tui/src/test/kotlin/com/correx/apps/tui/reducer/SessionsReducerTest.kt

@@ -290,42 +290,24 @@ class SessionsReducerTest {
     }
 
     @Test
-    fun `SessionSnapshot with pendingApproval populates pendingApproval on summary`() {
+    fun `SessionSnapshot with pendingApprovals populates pendingApproval on summary`() {
         val msg = ServerMessage.SessionSnapshot(
             sessionId = SessionId("s1"),
-            workflowId = "wf",
-            status = "PAUSED",
-            currentStageId = null,
-            pauseReason = null,
-            pendingApproval = true,
-            approvalRequestId = "r9",
-            approvalTier = "T2",
-            approvalToolName = "bash",
-            approvalPreview = "preview text",
             state = com.correx.apps.server.protocol.SessionStateDto("PAUSED", null, null),
-            pendingApprovals = emptyList(),
+            pendingApprovals = listOf(com.correx.apps.server.protocol.ApprovalDto(requestId = "r9", tier = "T2")),
             lastSequence = 1L,
             lastSessionSequence = 1L,
         )
         val (state, _) = reduce(action = Action.ServerEventReceived(msg))
         assertEquals("r9", state.sessions[0].pendingApproval?.requestId)
-        assertEquals("bash", state.sessions[0].pendingApproval?.toolName)
+        assertEquals("PAUSED awaiting approval", state.sessions[0].status)
     }
 
     @Test
-    fun `SessionSnapshot without pendingApproval leaves pendingApproval null`() {
+    fun `SessionSnapshot without pendingApprovals leaves pendingApproval null`() {
         val msg = ServerMessage.SessionSnapshot(
             sessionId = SessionId("s1"),
-            workflowId = "wf",
-            status = "ACTIVE",
-            currentStageId = null,
-            pauseReason = null,
-            pendingApproval = false,
-            approvalRequestId = null,
-            approvalTier = null,
-            approvalToolName = null,
-            approvalPreview = null,
-            state = com.correx.apps.server.protocol.SessionStateDto("PAUSED", null, null),
+            state = com.correx.apps.server.protocol.SessionStateDto("ACTIVE", null, null),
             pendingApprovals = emptyList(),
             lastSequence = 1L,
             lastSessionSequence = 1L,

apps/tui/src/test/kotlin/com/correx/apps/tui/reducer/SnapshotPhaseReducerTest.kt

@@ -108,15 +108,6 @@ class SnapshotPhaseReducerTest {
         val state = TuiState(snapshotPhase = true)
         val snapshot = ServerMessage.SessionSnapshot(
             sessionId = SessionId("s1"),
-            workflowId = "wf",
-            status = "ACTIVE",
-            currentStageId = null,
-            pauseReason = null,
-            pendingApproval = false,
-            approvalRequestId = null,
-            approvalTier = null,
-            approvalToolName = null,
-            approvalPreview = null,
             state = SessionStateDto(status = "ACTIVE", currentStageId = null, pauseReason = null),
             pendingApprovals = emptyList(),
             lastSequence = 1L,