Refactor: The iOS app is sample/src/iosMain/app.xcodeproj; root iosApp removed

docs/platforms/ios-app-bundle.md

@@ -90,23 +90,28 @@ before. `PyConfig.home` is the non-deprecated route, but the library carries no
 
 ## Wiring an app
 
-The sample's project is `iosApp/iosApp.xcodeproj` (product `PythonDemo.app`, bundle id
+The sample's project is `sample/src/iosMain/app.xcodeproj` (target `app`, product `PythonDemo.app`, bundle id
 `org.thisisthepy.python.multiplatform.demo`). Its phase:
 
 ```sh
 set -e
-cd "$SRCROOT/.."
-export PYTHON_PAYLOAD_DIR="$SRCROOT/../sample/src/commonMain/python"
+cd "$SRCROOT/../../.."
+export PYTHON_PAYLOAD_DIR="$SRCROOT/../commonMain/python"
 /bin/bash tools/xcode/install-python.sh
 ```
 
 It replaced two phases: "Install Target Specific Python Standard Library", which rsynced the slice's
 `lib/`, only `libpython3.14.dylib`, into `<app>/lib/`, and "Prepare Python Binary Modules", which
-did the framework wrapping from a template copied in as a resource. `iosApp/iosApp/dylib-Info-template.plist`
-is no longer copied into the app; the file itself is still in the project.
+did the framework wrapping from a template copied in as a resource. The template is no longer copied
+into the app: `install-python.sh` takes the one the Gradle plugin stages (`PYTHON_DYLIB_INFO_TEMPLATE`).
 
-`sample/src/iosMain/app.xcodeproj` is not wired: it still references `../../dist/toolchain/...` and
-a `ComposeApp` framework that this build does not produce, and has never been built here.
+The project used to live in a root `iosApp/` folder. It moved to `sample/src/iosMain/` (the
+app-template layout, #107); the old `python` folder reference to `build/pythonStaging/ios/python`
+and the `../../dist/toolchain/...` references were removed, because `install-python.sh` already
+copies the payload to `<app>/python/` and a second copy would conflict. The target runs two Gradle
+tasks first (`:python-multiplatform:embedAndSignAppleFrameworkForXcode`,
+`:sample:embedAndSignAppleFrameworkForXcode`), then compiles, then installs Python, then embeds
+`Python.xcframework`.
 
 A consumer outside this repository cannot call `:python-multiplatform:stageIosPythonHomeForXcode`:
 the iOS archive download lives in this repository's build script, not in the published plugin. That
@@ -138,14 +143,14 @@ EFFECTIVE_PLATFORM_NAME=-iphonesimulator ARCHS="arm64 x86_64" \
 # 2. Build the app (flags from the last verified run, ROADMAP history 2026-08-13: actool cannot
 #    compile the app icon against this machine's simulator runtimes, and -target avoids
 #    -destination's eligibility check)
-(cd iosApp && xcodebuild -project iosApp.xcodeproj -target iosApp -configuration Debug \
-    -sdk iphonesimulator ARCHS=arm64 ONLY_ACTIVE_ARCH=YES SYMROOT="$PWD/build" \
+xcodebuild -project sample/src/iosMain/app.xcodeproj -target app -configuration Debug \
+    -sdk iphonesimulator ARCHS=arm64 ONLY_ACTIVE_ARCH=YES SYMROOT="$PWD/sample/build/xcode-app" \
     ASSETCATALOG_COMPILER_APPICON_NAME="" \
-    CODE_SIGN_IDENTITY="-" CODE_SIGN_STYLE=Manual DEVELOPMENT_TEAM="" build) \
+    CODE_SIGN_IDENTITY="-" CODE_SIGN_STYLE=Manual DEVELOPMENT_TEAM="" build \
   > .tmp/xcodebuild.log 2>&1; echo "EXIT=$?"
 grep -E "Installing the Python|Wrapped|error:" .tmp/xcodebuild.log
 
-APP=iosApp/build/Debug-iphonesimulator/PythonDemo.app
+APP=sample/build/xcode-app/Debug-iphonesimulator/PythonDemo.app
 ls "$APP/python-multiplatform-home/lib/python3.14/os.py" "$APP/python/example_py/__init__.py"
 ls "$APP/python-multiplatform-home/lib/python3.14/lib-dynload" | grep -c '\.fwork$'   # 67 for 3.14
 find "$APP/python-multiplatform-home" "$APP/python" -name '*.so' | wc -l               # 0

docs/roadmap/ROADMAP.md

@@ -266,7 +266,7 @@ trampolines exist. GraalVM native image upcalls are verified by hand
   open.** SPEC L-11, issue #59, `docs/platforms/ios-app-bundle.md`: per-slice staging
   (`stageIosPythonHome_*`, `stageIosPythonHomeForXcode`), `tools/xcode/install-python.sh` (stdlib to
   `<app>/python-multiplatform-home/`, payload to `<app>/python/`, `.so` wrapped as frameworks with
-  `.fwork` placeholders) replacing `iosApp/`'s two broken phases, and `IosPythonHome` +
+  `.fwork` placeholders) replacing the two broken phases of the old root `iosApp/` (now `sample/src/iosMain/app.xcodeproj`, #107), and `IosPythonHome` +
   `Py_SetPythonHome` at run time. Left: the installed-app run on the simulator with no
   `SIMCTL_CHILD_*` (the page's "Checking it"); a device run; and a way for consumers outside this
   repository to stage the stdlib (the iOS archive download is in this build script, not the plugin).