Remove markdown test docs and document tests inline

packages/inbox-runtime/internal/cli/inbox/fetch_integration_test.go

@@ -2,6 +2,7 @@ package inbox
 
 import "testing"
 
+// TestFetchReturnsPendingThreadForTargetAgent verifies fetch returns pending thread for target agent.
 func TestFetchReturnsPendingThreadForTargetAgent(t *testing.T) {
 	t.Parallel()
 
@@ -35,6 +36,7 @@ func TestFetchReturnsPendingThreadForTargetAgent(t *testing.T) {
 	}
 }
 
+// TestFetchRespectsStatusAndLimitFilters verifies fetch respects status and limit filters.
 func TestFetchRespectsStatusAndLimitFilters(t *testing.T) {
 	t.Parallel()
 
@@ -94,6 +96,7 @@ func TestFetchRespectsStatusAndLimitFilters(t *testing.T) {
 	}
 }
 
+// TestFetchUnreadUsesReadCursor verifies fetch unread uses read cursor.
 func TestFetchUnreadUsesReadCursor(t *testing.T) {
 	t.Parallel()
 
@@ -169,6 +172,7 @@ func TestFetchUnreadUsesReadCursor(t *testing.T) {
 	}
 }
 
+// TestFetchReturnsNoMatchingWorkWhenEmpty verifies fetch returns no matching work when empty.
 func TestFetchReturnsNoMatchingWorkWhenEmpty(t *testing.T) {
 	t.Parallel()