refactor(scanner,send): embed scanner options; unify stats and config ownership

tests/integration/test_features.py

@@ -1239,6 +1239,20 @@ class TestProgress:
         assert "Stats:" in result.stderr
         assert "KB" in result.stderr
 
+    def test_human_readable_stats_multithreaded(self, shared_server):
+        # The multithreaded sender shares the single-threaded --stats format,
+        # including --human-readable and the rate suffix.
+        clean_dir(DEST_DIR)
+        result, dur = run_client(
+            SOURCE_DIR, DEST_DIR,
+            flags=["--threads", "-h", "--stats"],
+            port=shared_server.port,
+        )
+        assert result.returncode == 0, f"Exit {result.returncode}: {result.stderr[:100]}"
+        assert "Stats:" in result.stderr
+        assert "KB" in result.stderr
+        assert "/s" in result.stderr
+
     def test_human_readable_progress_multithreaded(self, shared_server):
         clean_dir(DEST_DIR)
         result, dur = run_client(

tests/test_config.c

@@ -383,6 +383,7 @@ static void test_pipeline_sender_lifecycle() {
   EXPECT_EQ_INT((int)pcs->allocation_session.max_alloc, (int)cfg->max_alloc);
 
   pipeline_context_sender_destroy(pcs);
+  config_delete(cfg); /* the context borrows cfg; the caller owns it */
 }
 
 static void test_pipeline_receiver_lifecycle() {

tests/test_multiprocessing.c

@@ -37,6 +37,7 @@ static void test_sender_create_destroy() {
   EXPECT_NULL(ctx->manifest);
 
   pipeline_context_sender_destroy(ctx);
+  config_delete(cfg); /* the context borrows cfg; the caller owns it */
 }
 
 /* Test pipeline_context_receiver_create/destroy with valid arguments */
@@ -80,6 +81,7 @@ static void test_sender_queue_capacities() {
   EXPECT_EQ_INT(ctx->queue_scanner->capacity, 1);
   EXPECT_EQ_INT(ctx->queue_loader->capacity, 1);
   pipeline_context_sender_destroy(ctx);
+  config_delete(cfg); /* the context borrows cfg; the caller owns it */
 }
 
 /* Invalid queue capacities must not create unusable pipeline queues. */
@@ -445,8 +447,9 @@ static void test_sender_enqueue_byte_budget() {
   EXPECT_EQ_INT((int)ctx->queued_bytes, 2000); /* second payload now in flight */
 
   /* pipeline_context_sender_destroy frees the still-queued second chunk and
-     owns cfg/q_scanner/q_loader from here on. */
+     owns q_scanner/q_loader; cfg stays borrowed and is freed by the caller. */
   pipeline_context_sender_destroy(ctx);
+  config_delete(cfg);
 }
 
 void test_multiprocessing() {