feat(agent): redesign project_cli with module/method/input protocol

- Replace command/subcommand/args with module/method/input envelope
- Calendar handler uses discriminated union (mode) for read operations
- Strict Pydantic models with extra='forbid' for all calendar methods
- Worker max_iters=7, router prompt simplified (removed project_cli_defaults)
- Skill index cards + per-action files for progressive disclosure
- Frontend/AG-UI aligned to module/method dispatch
- Protocol docs updated to module/method/input contract

WIP: action cards need envelope fix, 2 tests need update, memory
handler needs Pydantic models.

apps/test/features/chat/presentation/bloc/chat_bloc_test.dart

@@ -234,7 +234,7 @@ void main() {
   });
 
   test(
-    'tool calendar_create success triggers calendar refresh callback',
+    'calendar mutation tool result triggers calendar refresh callback',
     () async {
       final service = _FakeAgUiService();
       var refreshCalls = 0;
@@ -251,7 +251,10 @@ void main() {
           messageId: 'msg-1',
           toolCallId: 'call-1',
           toolName: 'project_cli',
-          toolCallArgs: const {'command': 'calendar', 'subcommand': 'create'},
+          toolCallArgs: const {
+            'skill': 'calendar',
+            'action': 'create_event',
+          },
           result: const {'ok': true},
           status: 'success',
           uiSchema: null,
@@ -264,6 +267,36 @@ void main() {
     },
   );
 
+  test('calendar read tool result does not trigger calendar refresh callback', () async {
+    final service = _FakeAgUiService();
+    var refreshCalls = 0;
+    final bloc = ChatBloc(
+      service: service,
+      chatApi: _NoopChatApi(),
+      onCalendarMutated: () async {
+        refreshCalls += 1;
+      },
+    );
+
+    service.emitEventForTest(
+      ToolCallResultEvent(
+        messageId: 'msg-1',
+        toolCallId: 'call-1',
+        toolName: 'project_cli',
+        toolCallArgs: const {
+          'skill': 'calendar',
+          'action': 'list_day',
+        },
+        result: const {'ok': true},
+        status: 'success',
+        uiSchema: null,
+      ),
+    );
+    await Future<void>.delayed(Duration.zero);
+
+    expect(refreshCalls, 0);
+  });
+
   test(
     'sendMessage recovers from premature SSE close with polled history',
     () async {