package: one bank leaves the project as one .rsbank, or the export refuses and says why

Pure planner classifies missing/unreadable/unrepresentable and repairs transport
names; the verb digests, streams and commits atomically over a const session.

src/app/main.cpp

@@ -26,6 +26,7 @@
 #include "shell/actions/action_registry.h"       // the registration table
 #include "shell/actions/bank_actions.h"          // multi-bank action family
 #include "shell/actions/design_view_actions.h"   // Design View action family
+#include "shell/actions/package_export_action.h" // bank-package export action body
 #include "core/wire/bake_wire.h"                 // kBakeActionSuffix (the shared action id)
 #include "shell/capture/bake_land.h"             // resample-bake landing action body
 #include "shell/capture/capture_batch.h"         // batch + recapture action bodies
@@ -91,6 +92,9 @@ static void RunCancelRealtime(int)    { capture::RunCancelRealtime(g_session); }
 static void RunRecaptureFromSource(int) { capture::RunRecaptureFromSource(g_session); }
 static void RunRenderTrackInPlace(int) { capture::RunRenderTrackInPlace(g_session); }
 static void RunResampleBake(int)      { capture::RunResampleBake(g_session); }
+static void RunExportBankPackage(int) {
+    reasampler::doBankPackageExport(g_session, g_session.book().activeBankId());
+}
 static void RunShowVersion(int) {
     // On-demand only — no unconditional startup print (routine console chatter pops
     // the console window).
@@ -147,6 +151,8 @@ static std::vector<reasampler::ActionTableRow> buildMainActionTable() {
     rows.push_back({reasampler::wire::kBakeActionSuffix,
                     "land pending ReaSampler 9000 resample bake",
                     &RunResampleBake});
+    rows.push_back({"EXPORT_BANK_PACKAGE", "export active bank as package",
+                    &RunExportBankPackage});
     rows.push_back({"SHOW_VERSION", "show version", &RunShowVersion});
 
     return rows;