Phase 5 sub-commit 3: hot-reload docs + .vscode/.idea editor configs

Skeleton README documents the hot-reload story end-to-end:
- PHP-side: frankenphp run --watch (already what `make dev` uses).
- QML-side: Qt Creator Reload, qmlls live preview, run-from-source.
- Dev console: Ctrl+` toggle from sub-commit 1.

Both skeleton and todo example ship .vscode/ (launch.json with Xdebug
attach + Qt-host gdb launch + a compound config, tasks.json for the
make targets, settings.json) and .idea/runConfigurations/ shell run
configs for `make dev`, `make doctor`, `make quality` (and `make
appimage` in the todo example). PhpStorm's Xdebug listener is global
so we don't ship a project-level run config for it; the README
points users at the toolbar toggle.

php-qml-init also rewrites .vscode/launch.json's binary path and
config label so a fresh scaffold's debugger configs point at the
new project's binary.

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

examples/todo/.vscode/launch.json

@@ -0,0 +1,41 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Listen for Xdebug (Symfony / FrankenPHP)",
+      "type": "php",
+      "request": "launch",
+      "port": 9003,
+      "pathMappings": {
+        "${workspaceFolder}/symfony": "${workspaceFolder}/symfony"
+      },
+      "log": false
+    },
+    {
+      "name": "Run todo (Qt host)",
+      "type": "cppdbg",
+      "request": "launch",
+      "program": "${workspaceFolder}/build/qml/todo",
+      "args": [],
+      "stopAtEntry": false,
+      "cwd": "${workspaceFolder}",
+      "environment": [
+        { "name": "BRIDGE_URL",   "value": "http://127.0.0.1:8765" },
+        { "name": "BRIDGE_TOKEN", "value": "devtoken" }
+      ],
+      "preLaunchTask": "make build",
+      "MIMode": "gdb",
+      "linux": { "MIMode": "gdb" },
+      "osx":   { "MIMode": "lldb" }
+    }
+  ],
+  "compounds": [
+    {
+      "name": "Dev: Xdebug + Qt host",
+      "configurations": [
+        "Listen for Xdebug (Symfony / FrankenPHP)",
+        "Run todo (Qt host)"
+      ]
+    }
+  ]
+}

examples/todo/.vscode/settings.json

@@ -0,0 +1,23 @@
+{
+  "files.exclude": {
+    "**/build": true,
+    "**/.qt": true,
+    "**/.rcc": true,
+    "**/var/cache": true,
+    "**/var/log": true,
+    "**/vendor": true,
+    "**/packaging/linux/tools": true
+  },
+  "search.exclude": {
+    "**/build": true,
+    "**/vendor": true,
+    "**/.qt": true,
+    "**/.rcc": true,
+    "**/packaging/linux/tools": true
+  },
+  "[php]": { "editor.tabSize": 4 },
+  "[qml]": { "editor.tabSize": 4 },
+  "[cpp]": { "editor.tabSize": 4 },
+  "intelephense.environment.phpVersion": "8.4.0",
+  "qt-qml.qmlls.useQmlImportPathEnvVar": true
+}

examples/todo/.vscode/tasks.json

@@ -0,0 +1,50 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "make build",
+      "type": "shell",
+      "command": "make",
+      "args": ["build"],
+      "group": { "kind": "build", "isDefault": true },
+      "problemMatcher": ["$gcc"]
+    },
+    {
+      "label": "make dev",
+      "type": "shell",
+      "command": "make",
+      "args": ["dev"],
+      "isBackground": true,
+      "presentation": { "reveal": "always", "panel": "dedicated" },
+      "problemMatcher": []
+    },
+    {
+      "label": "make doctor",
+      "type": "shell",
+      "command": "make",
+      "args": ["doctor"],
+      "problemMatcher": []
+    },
+    {
+      "label": "make quality",
+      "type": "shell",
+      "command": "make",
+      "args": ["quality"],
+      "problemMatcher": ["$gcc"]
+    },
+    {
+      "label": "make integration",
+      "type": "shell",
+      "command": "make",
+      "args": ["integration"],
+      "problemMatcher": []
+    },
+    {
+      "label": "make appimage",
+      "type": "shell",
+      "command": "make",
+      "args": ["appimage"],
+      "problemMatcher": ["$gcc"]
+    }
+  ]
+}