fix(agent_hub): deliver memory in each target framework's native runtime format

ms_agent/agent_hub/_commands.py

@@ -1020,10 +1020,20 @@ def convert_workspace(
     # as-is; without this filter they would leak into the target framework.
     # Mirrors the dst-spec guard in cmd_download's download path.
     dropped: list[str] = []
+    dropped_memory_payloads: list[str] = []
     if source_fw != target_fw:
         dst_patterns = dst_spec.resolved_patterns()
         dropped = sorted(
             k for k in converted if not dst_spec.matches(k, dst_patterns))
+        # Non-Markdown memory payloads get their own explicit report: they
+        # are user memory the target's Markdown-only memory system cannot
+        # host, and deserve a clearer note than the generic drop line.
+        dropped_memory_payloads = [
+            k for k in dropped
+            if k.startswith(('memory/', 'memories/'))
+            and not k.endswith('.md')
+        ]
+        dropped = [k for k in dropped if k not in dropped_memory_payloads]
         converted = {
             k: v
             for k, v in converted.items() if dst_spec.matches(k, dst_patterns)
@@ -1054,8 +1064,9 @@ def convert_workspace(
               ('written', len(effective), display.COLOR_WRITTEN)]
     if merge_pairs:
         counts.append(('merged', len(merge_pairs), display.COLOR_MERGED))
-    if dropped:
-        counts.append(('dropped', len(dropped), display.COLOR_DROPPED))
+    if dropped or dropped_memory_payloads:
+        counts.append(('dropped', len(dropped) + len(dropped_memory_payloads),
+                       display.COLOR_DROPPED))
     display.summary(counts)
 
     display.file_list('Written', effective, color=display.COLOR_WRITTEN)
@@ -1073,6 +1084,15 @@ def convert_workspace(
         marker='[drop]',
         note=f'not part of the {target_fw} workspace spec',
     )
+    display.file_list(
+        'Memory payloads not supported',
+        dropped_memory_payloads,
+        color=display.COLOR_DROPPED,
+        marker='[drop]',
+        note=(f'non-Markdown memory files; {target_fw} memory is '
+              'Markdown-only, so they cannot travel cross-framework '
+              '(kept on same-framework sync)'),
+    )
     display.file_list(
         'Skipped',
         skipped_skills,