feat(transitions): tasks_ready predicate for execution loop

New TasksReady condition driven by EvaluationContext.readyTaskCount,
fed at resolve time via a kernel-declared ReadyTaskCounter interface
implemented in apps/server over TaskService (keeps core:kernel
decoupled from core:tasks). Loops a graph while ready>0, exits at 0.

infrastructure/workflow/src/main/kotlin/com/correx/infrastructure/workflow/ConditionFactory.kt

@@ -10,6 +10,7 @@ import com.correx.core.transitions.conditions.ArtifactPresent
 import com.correx.core.transitions.conditions.ArtifactValidated
 import com.correx.core.transitions.conditions.FieldOperator
 import com.correx.core.transitions.conditions.Not
+import com.correx.core.transitions.conditions.TasksReady
 import com.correx.core.transitions.conditions.VariableEquals
 import com.correx.core.transitions.graph.TransitionCondition
 
@@ -20,6 +21,7 @@ fun ConditionSpec.toCondition(): TransitionCondition = when (type) {
     "artifact_validated" -> buildArtifactValidated()
     "variable_equals" -> buildVariableEquals()
     "artifact_field_equals" -> buildArtifactFieldEquals()
+    "tasks_ready" -> TasksReady
     "all_of" -> AllOf(conditions.map { it.toCondition() })
     "any_of" -> AnyOf(conditions.map { it.toCondition() })
     "not" -> Not((condition ?: error("condition required for not")).toCondition())

infrastructure/workflow/src/test/kotlin/com/correx/infrastructure/workflow/ConditionFactoryTest.kt

@@ -0,0 +1,19 @@
+package com.correx.infrastructure.workflow
+
+import com.correx.core.transitions.conditions.TasksReady
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+import kotlin.test.assertSame
+
+class ConditionFactoryTest {
+
+    @Test
+    fun `tasks_ready maps to TasksReady`() {
+        assertSame(TasksReady, ConditionSpec(type = "tasks_ready").toCondition())
+    }
+
+    @Test
+    fun `unknown type rejected`() {
+        assertThrows<WorkflowValidationException> { ConditionSpec(type = "nope").toCondition() }
+    }
+}