feat(recovery,context): tier-2 intent-holder arbiter + remaining-delta pinning + surfaced signal events

- recovery: two-tier repair ladder — owner then arbiter (recovery stage recast
  as intent-holder, holds initial intent, reconciles cross-file contract disputes)
  with independent INTENT_ROUTE_BUDGET; RecoveryRoutingTest coverage
- context: remaining-delta checklist pinning (RemainingDelta{Pinning,Entry}Test)
- surface write-only events (session name, quality signals) into stats/browse
- parseToolArguments lenient-Json fallback for bare-key drift
- tools: ChildProcess seam

core/sessions/src/main/kotlin/com/correx/core/sessions/SessionSummary.kt

@@ -7,6 +7,7 @@ import kotlinx.serialization.Serializable
 @Serializable
 data class SessionSummary(
     val sessionId: SessionId,
+    val name: String?,
     val intent: String?,
     val workflowId: String?,
     val status: String,

core/sessions/src/main/kotlin/com/correx/core/sessions/SessionSummaryProjector.kt

@@ -2,6 +2,7 @@ package com.correx.core.sessions
 
 import com.correx.core.events.events.InitialIntentEvent
 import com.correx.core.events.events.OrchestrationPausedEvent
+import com.correx.core.events.events.SessionNamedEvent
 import com.correx.core.events.events.StoredEvent
 import com.correx.core.events.events.TransitionExecutedEvent
 import com.correx.core.events.events.WorkflowCompletedEvent
@@ -12,6 +13,7 @@ import com.correx.core.events.types.SessionId
 class SessionSummaryProjector {
     fun project(sessionId: SessionId, events: List<StoredEvent>): SessionSummary {
         var intent: String? = null
+        var name: String? = null
         var workflowId: String? = null
         var stageCount = 0
         var status = "UNKNOWN"
@@ -21,6 +23,7 @@ class SessionSummaryProjector {
         events.forEach { event ->
             when (val p = event.payload) {
                 is InitialIntentEvent -> intent = p.intent
+                is SessionNamedEvent -> name = p.name
                 is WorkflowStartedEvent -> {
                     workflowId = p.workflowId
                     status = SessionStatus.ACTIVE.name
@@ -35,6 +38,7 @@ class SessionSummaryProjector {
 
         return SessionSummary(
             sessionId = sessionId,
+            name = name,
             intent = intent,
             workflowId = workflowId,
             status = status,

core/sessions/src/test/kotlin/com/correx/core/sessions/SessionSummaryProjectorTest.kt

@@ -2,6 +2,7 @@ package com.correx.core.sessions
 
 import com.correx.core.events.events.EventMetadata
 import com.correx.core.events.events.InitialIntentEvent
+import com.correx.core.events.events.SessionNamedEvent
 import com.correx.core.events.events.StoredEvent
 import com.correx.core.events.events.TransitionExecutedEvent
 import com.correx.core.events.types.EventId
@@ -58,6 +59,15 @@ class SessionSummaryProjectorTest {
         assertEquals("add auth layer", summary.intent)
     }
 
+    @Test
+    fun `SessionNamedEvent surfaces the human name in the summary`() {
+        val event = stored(SessionNamedEvent(sessionId, "Add auth layer", timestampMs = 0L))
+
+        val summary = projector.project(sessionId, listOf(event))
+
+        assertEquals("Add auth layer", summary.name)
+    }
+
     @Test
     fun `two TransitionExecutedEvents yield stageCount of two`() {
         val t1 = stored(