Phase 3 sub-commit 3: examples/todo POC app, built via the makers

Standalone Composer/CMake project under examples/todo/ derived from the
skeleton, demonstrating every Phase 3 architectural primitive in a
non-trivial app. All cross-side wiring is maker-generated; no
handwritten bridge glue.

Generated and customised:

  - src/Entity/Todo.php — make:bridge:resource Todo (UUIDv7 id)
  - src/Controller/TodoController.php — make:bridge:resource Todo (CRUD)
  - src/Controller/MarkAllDoneController.php — make:bridge:command
    MarkAllDone, body filled in to flip done=true on every row
  - qml/TodoList.qml — make:bridge:resource Todo (starter ListView)
  - qml/TodoWindow.qml — make:bridge:window Todo, body customised to
    embed a read-only mirror of the same ReactiveListModel

The Phase 1 ping demo is dropped from this app — it doesn't fit the
todo flow and nothing in Main.qml references it.

Main.qml is the real list UI:

  - Add input + button (POST /api/todos with optimistic-friendly key).
  - Per-row CheckBox + delete button (PATCH/DELETE via
    todoModel.invoke() with `pending` role driving opacity).
  - "Mark all done" button (POST /api/mark-all-done).
  - "Open second window" button (Component { TodoWindow {} } pattern).

Build / run delegated to the same Makefile shape as the skeleton, with
SCRIPT_DIR/QT_BIN updated for the renamed binary (build/qml/todo).
composer.json's path repo points at ../../../framework/php (one level
deeper than the skeleton's path repo).

Verified end-to-end with offscreen QPA: POST/PATCH/DELETE on /api/todos
all round-trip, /api/mark-all-done flips every row, Mercure dual-
publishes on every change. Clean shutdown.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

examples/todo/qml/CMakeLists.txt

@@ -0,0 +1,35 @@
+cmake_minimum_required(VERSION 3.21)
+project(php_qml_todo_example LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_AUTOMOC ON)
+
+find_package(Qt6 6.5 REQUIRED COMPONENTS Core Gui Quick QuickControls2 Network Qml)
+qt_standard_project_setup(REQUIRES 6.5)
+
+# Pull in the framework's QML module (PhpQml.Bridge) — the example uses
+# the same module the skeleton does, just one level deeper in the tree.
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../../../framework/qml ${CMAKE_BINARY_DIR}/php_qml_bridge)
+
+qt_add_executable(todo main.cpp)
+
+qt_add_qml_module(todo
+    URI Todo
+    VERSION 1.0
+    QML_FILES
+        Main.qml
+        TodoList.qml
+        TodoWindow.qml
+)
+
+target_link_libraries(todo PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Quick
+    Qt6::QuickControls2
+    Qt6::Network
+    Qt6::Qml
+    php_qml_bridge
+    php_qml_bridgeplugin
+)