fix(log): add missing LIBIPC_LOG() and fix lambda log capture

- src/libipc/prod_cons.h:
  * Add LIBIPC_LOG() to second force_push() template function
  * This was missing, causing 'log' to be undeclared at line 379

- src/libipc/ipc.cpp:
  * Add LIBIPC_LOG() to static send() function (line 590)
  * Capture log by reference in outer lambda: [tm, &log]
  * Capture log by reference in inner lambda: [tm, &log, info, que, msg_id]
  * This fixes 'log' was not declared error in lambda at line 598
  * The log variable is now properly captured from the outer send() scope

These fixes ensure that all functions using log.debug/error/warning
have proper LIBIPC_LOG() initialization and lambda captures.

src/libipc/ipc.cpp

@@ -588,8 +588,9 @@ static bool send(F&& gen_push, ipc::handle_t h, void const * data, std::size_t s
 }
 
 static bool send(ipc::handle_t h, void const * data, std::size_t size, std::uint64_t tm) {
-    return send([tm](auto *info, auto *que, auto msg_id) {
-        return [tm, info, que, msg_id](std::int32_t remain, void const * data, std::size_t size) {
+    LIBIPC_LOG();
+    return send([tm, &log](auto *info, auto *que, auto msg_id) {
+        return [tm, &log, info, que, msg_id](std::int32_t remain, void const * data, std::size_t size) {
             if (!wait_for(info->wt_waiter_, [&] {
                     return !que->push(
                         [](void*) { return true; },

src/libipc/prod_cons.h

@@ -365,6 +365,7 @@ struct prod_cons_impl<wr<relat::multi, relat::multi, trans::broadcast>> {
 
     template <typename W, typename F, typename E>
     bool force_push(W* wrapper, F&& f, E* elems) {
+        LIBIPC_LOG();
         E* el;
         circ::u2_t cur_ct;
         rc_t epoch = epoch_.fetch_add(ep_incr, std::memory_order_release) + ep_incr;