feat: harden jsonl runtime reliability

pkg/tools/subagent_store_test.go

@@ -0,0 +1,70 @@
+package tools
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestSubagentRunStoreReloadsFromMetaAndJSONL(t *testing.T) {
+	t.Parallel()
+
+	workspace := t.TempDir()
+	store := NewSubagentRunStore(workspace)
+	run := &SubagentRun{
+		ID:      "subagent-0007",
+		Task:    "review deploy plan",
+		AgentID: "worker-a",
+		Status:  RuntimeStatusCompleted,
+		Result:  "done",
+		Created: 10,
+		Updated: 20,
+	}
+	if err := store.AppendRun(run); err != nil {
+		t.Fatalf("append run: %v", err)
+	}
+	if err := store.AppendEvent(SubagentRunEvent{
+		RunID:   run.ID,
+		AgentID: run.AgentID,
+		Type:    "completed",
+		Status:  RuntimeStatusCompleted,
+		Message: "done",
+		At:      20,
+	}); err != nil {
+		t.Fatalf("append event: %v", err)
+	}
+
+	reloaded := NewSubagentRunStore(workspace)
+	if got, ok := reloaded.Get(run.ID); !ok || got.Result != "done" {
+		t.Fatalf("expected run restored, got %#v ok=%v", got, ok)
+	}
+	if seed := reloaded.NextIDSeed(); seed != 8 {
+		t.Fatalf("expected next seed 8, got %d", seed)
+	}
+	events, err := reloaded.Events(run.ID, 10)
+	if err != nil {
+		t.Fatalf("events: %v", err)
+	}
+	if len(events) != 1 || events[0].Type != "completed" {
+		t.Fatalf("unexpected events: %#v", events)
+	}
+
+	runtimeDir := filepath.Join(workspace, "agents", "runtime")
+	if err := os.Remove(filepath.Join(runtimeDir, "subagent_runs.meta.json")); err != nil {
+		t.Fatalf("remove run meta: %v", err)
+	}
+	if err := os.Remove(filepath.Join(runtimeDir, "subagent_events.meta.json")); err != nil {
+		t.Fatalf("remove event meta: %v", err)
+	}
+	rebuilt := NewSubagentRunStore(workspace)
+	if seed := rebuilt.NextIDSeed(); seed != 8 {
+		t.Fatalf("expected rebuilt next seed 8, got %d", seed)
+	}
+	events, err = rebuilt.Events(run.ID, 10)
+	if err != nil {
+		t.Fatalf("events after rebuild: %v", err)
+	}
+	if len(events) != 1 || events[0].Message != "done" {
+		t.Fatalf("unexpected rebuilt events: %#v", events)
+	}
+}