fix(build): resolve three failing tests across integration and tui modules

SessionOrchestratorIntegrationTest: wire approvalRepository into
OrchestratorRepositories constructor which gained the field in the kernel
refactor. TambouiKeyMapperTest: correct ctrl-h to alt-h — the mapper has
always placed ToggleApprovalOverlay under the Alt branch, not Ctrl.
SessionOrchestrator.emit: replace substring(0,7) with take(7) to avoid
StringIndexOutOfBoundsException when session IDs are shorter than 7 chars.

testing/integration/src/test/kotlin/SessionOrchestratorIntegrationTest.kt

@@ -1,5 +1,8 @@
 import com.correx.core.approvals.ApprovalOutcome
+import com.correx.core.approvals.ApprovalProjector
 import com.correx.core.approvals.ApprovalStatus
+import com.correx.core.approvals.DefaultApprovalReducer
+import com.correx.core.approvals.DefaultApprovalRepository
 import com.correx.core.approvals.Tier
 import com.correx.core.approvals.domain.DefaultApprovalEngine
 import com.correx.core.approvals.model.ApprovalContext
@@ -87,12 +90,17 @@ class SessionOrchestratorIntegrationTest {
     private val riskAssessor = DefaultRiskAssessor()
     private val artifactStore = NoopArtifactStore()
 
+    private val approvalRepository = DefaultApprovalRepository(
+        DefaultEventReplayer(eventStore, ApprovalProjector(DefaultApprovalReducer())),
+    )
+
     private val repositories = OrchestratorRepositories(
         eventStore = eventStore,
         inferenceRepository = inferenceRepository,
         orchestrationRepository = orchestrationRepository,
         sessionRepository = sessionRepository,
         artifactRepository = LiveArtifactRepository(eventStore, DefaultArtifactReducer()),
+        approvalRepository = approvalRepository,
     )
 
     private val engines = OrchestratorEngines(