chore: fix some comments to improve readability

pkg/sequencers/single/sequencer_test.go

@@ -1978,7 +1978,7 @@ func TestSequencer_CatchUp_CheckpointAdvancesDuringCatchUp(t *testing.T) {
 func TestSequencer_CatchUp_MonotonicTimestamps(t *testing.T) {
 	// When a single DA epoch has more forced txs than fit in one block,
 	// catch-up must produce strictly monotonic timestamps across the
-	// resulting blocks.  The jitter scheme is:
+	// resulting blocks. The jitter scheme is:
 	//   epochStart     = daEndTime - totalEpochTxs * 1ms
 	//   blockTimestamp = epochStart + txIndexForTimestamp * 1ms
 	// where txIndexForTimestamp is the cumulative consumed-tx count

pkg/store/data_store_adapter_test.go

@@ -531,7 +531,7 @@ func TestDataStoreAdapter_ContextTimeout(t *testing.T) {
 	time.Sleep(1 * time.Millisecond) // Ensure context is expired
 
 	// Operations should still work with in-memory store
-	// but this tests the context is being passed through
+	// but this tests that the context is being passed through
 	_, d1 := types.GetRandomBlock(1, 1, "test-chain")
 	// Note: In-memory store doesn't actually check context, but this verifies
 	// the adapter passes the context through

pkg/store/header_store_adapter_test.go

@@ -529,7 +529,7 @@ func TestHeaderStoreAdapter_ContextTimeout(t *testing.T) {
 	time.Sleep(1 * time.Millisecond) // Ensure context is expired
 
 	// Operations should still work with in-memory store
-	// but this tests the context is being passed through
+	// but this tests that the context is being passed through
 	h1, _ := types.GetRandomBlock(1, 1, "test-chain")
 	// Note: In-memory store doesn't actually check context, but this verifies
 	// the adapter passes the context through