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/core/utils/tool_name_localizer.dart

@@ -1,21 +1,13 @@
 import '../l10n/l10n.dart';
 
-const Map<String, String> _toolNameAliases = {
-  'calendar_read': 'calendar.read',
-  'calendar_write': 'calendar.write',
-  'calendar_share': 'calendar.share',
-  'user_lookup': 'user.lookup',
-  'memory_write': 'memory.write',
-  'memory_forget': 'memory.forget',
-};
-
 const List<String> automationToolOptions = [
+  'calendar.create',
   'calendar.read',
-  'calendar.write',
+  'calendar.update',
+  'calendar.delete',
   'calendar.share',
-  'user.lookup',
-  'memory.write',
-  'memory.forget',
+  'contacts.read',
+  'memory.update',
 ];
 
 String localizeToolName(String rawName) {
@@ -23,20 +15,21 @@ String localizeToolName(String rawName) {
   if (normalized.isEmpty) {
     return rawName;
   }
-  final canonical = _toolNameAliases[normalized] ?? normalized;
-  switch (canonical) {
+  switch (normalized) {
+    case 'calendar.create':
+      return L10n.current.toolCalendarWrite;
     case 'calendar.read':
       return L10n.current.toolCalendarRead;
-    case 'calendar.write':
+    case 'calendar.update':
+      return L10n.current.toolCalendarWrite;
+    case 'calendar.delete':
       return L10n.current.toolCalendarWrite;
     case 'calendar.share':
       return L10n.current.toolCalendarShare;
-    case 'user.lookup':
+    case 'contacts.read':
       return L10n.current.toolUserLookup;
-    case 'memory.write':
+    case 'memory.update':
       return L10n.current.toolMemoryWrite;
-    case 'memory.forget':
-      return L10n.current.toolMemoryForget;
     default:
       return rawName;
   }