refactor: clean CLI taxonomy — canonical subcommands, merged memory.update, no aliases

- calendar: split write → create/read/update/delete/share
- contacts: rename lookup → read
- memory: merge write+forget → update (unified action field in operations)
- Remove all alias/normalization logic from adapter and handlers
- Update tool_postprocessor ui_hints builders to canonical keys
- Remove frontend legacy TOOL_CALL_START/ARGS/END events and ToolCallItem
- Update SKILL.md files and protocol docs
- Update tests and settings screens

apps/lib/features/home/presentation/screens/home_screen.dart

@@ -375,7 +375,15 @@ class _HomeScreenState extends State<HomeScreen>
                             padding: const EdgeInsets.only(
                               bottom: _itemSpacing,
                             ),
-                            child: HomeChatItemRenderer.build(context, item),
+                            child: HomeChatItemRenderer.build(
+                              context,
+                              item,
+                              onSuggestedActionTap: (suggestion) =>
+                                  _sendMessage(
+                                    context,
+                                    overrideContent: suggestion,
+                                  ),
+                            ),
                           ),
                         ],
                       );