workout_app: replace the stock Flutter launcher icon

Adopt the shared icon family (python_pkg/app_icons in testsAndMisc): a
charcoal #1B1D21 field carrying a crimson barbell glyph. Crimson rather than
this app's indigo seed, because dufs_client already owns indigo and the two
sit side by side in the launcher; crimson is the app's own accent colour
(Color(0xFFFF4444)), so the icon still matches the UI.

Adds the adaptive-icon layers the project never had, including an Android 13
monochrome layer.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

stronglift_replacement/workout_app/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@color/ic_launcher_background"/>
+  <foreground>
+      <inset
+          android:drawable="@drawable/ic_launcher_foreground"
+          android:inset="16%" />
+  </foreground>
+  <monochrome>
+      <inset
+          android:drawable="@drawable/ic_launcher_monochrome"
+          android:inset="16%" />
+  </monochrome>
+</adaptive-icon>

stronglift_replacement/workout_app/android/app/src/main/res/values/colors.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#1B1D21</color>
+</resources>

stronglift_replacement/workout_app/assets/icon/icon.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024">
+  <rect width="1024" height="1024" fill="#1B1D21"/>
+  <g fill="none" stroke="#FF4444" stroke-width="72" stroke-linecap="round" stroke-linejoin="round" transform="translate(0,0)">
+    <path d="M 268 512 L 756 512"/>
+    <path d="M 364 356 L 364 668"/>
+    <path d="M 660 356 L 660 668"/>
+    <path d="M 268 432 L 268 592"/>
+    <path d="M 756 432 L 756 592"/>
+  </g>
+</svg>

stronglift_replacement/workout_app/assets/icon/icon_foreground.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024">
+  <g fill="none" stroke="#FF4444" stroke-width="72" stroke-linecap="round" stroke-linejoin="round" transform="translate(0,0)">
+    <path d="M 268 512 L 756 512"/>
+    <path d="M 364 356 L 364 668"/>
+    <path d="M 660 356 L 660 668"/>
+    <path d="M 268 432 L 268 592"/>
+    <path d="M 756 432 L 756 592"/>
+  </g>
+</svg>

stronglift_replacement/workout_app/assets/icon/icon_monochrome.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024">
+  <g fill="none" stroke="#FFFFFF" stroke-width="72" stroke-linecap="round" stroke-linejoin="round" transform="translate(0,0)">
+    <path d="M 268 512 L 756 512"/>
+    <path d="M 364 356 L 364 668"/>
+    <path d="M 660 356 L 660 668"/>
+    <path d="M 268 432 L 268 592"/>
+    <path d="M 756 432 L 756 592"/>
+  </g>
+</svg>

stronglift_replacement/workout_app/pubspec.lock

@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  archive:
+    dependency: transitive
+    description:
+      name: archive
+      sha256: a96e8b390886ee8abb49b7bd3ac8df6f451c621619f52a26e815fdcf568959ff
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.9"
   args:
     dependency: transitive
     description:
@@ -89,6 +97,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.1"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      sha256: "959525d3162f249993882720d52b7e0c833978df229be20702b33d48d91de70f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.4"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      sha256: ff6785f7e9e3c38ac98b2fb035701789de90154024a75b6cb926445e83197d1c
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.2"
   clock:
     dependency: transitive
     description:
@@ -191,6 +215,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_launcher_icons:
+    dependency: "direct dev"
+    description:
+      name: flutter_launcher_icons
+      sha256: "10f13781741a2e3972126fae08393d3c4e01fa4cd7473326b94b72cf594195e7"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.14.4"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -289,6 +321,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.2"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      sha256: "6300175e00616bbc832e2fc91bfa4d776af5402c81c7151bee6905bb08473c52"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.9.1"
   jni:
     dependency: transitive
     description:
@@ -305,6 +345,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.1"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      sha256: "2a743920d81b7910627f68ee2c9ac1fc0bfee32b9fc3403587d7c6791ca12f80"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.12.0"
   leak_tracker:
     dependency: transitive
     description:
@@ -497,6 +545,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.2.1"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      sha256: "91bd59303e9f769f108f8df05e371341b15d59e995e6806aefab827b58336675"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.2"
   platform:
     dependency: transitive
     description:
@@ -513,6 +569,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.8"
+  posix:
+    dependency: transitive
+    description:
+      name: posix
+      sha256: "185ef7606574f789b40f289c233efa52e96dead518aed988e040a10737febb07"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.5.0"
   pub_semver:
     dependency: transitive
     description:
@@ -854,6 +918,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.0"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      sha256: "67f0aff7be013d107995e9b75bf4e7f2c3ef2dfdb2c8e68024bba0a7fd5756a4"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.1"
   yaml:
     dependency: transitive
     description:

stronglift_replacement/workout_app/pubspec.yaml

@@ -28,6 +28,9 @@ dependencies:
 
 dev_dependencies:
   audioplayers_platform_interface: ^7.1.1
+  # Generates the Android launcher icons from assets/icon/ (see
+  # python_pkg/app_icons in testsAndMisc for the shared style).
+  flutter_launcher_icons: ^0.14.4
   flutter_lints: ^6.0.0
   flutter_test:
     sdk: flutter
@@ -38,3 +41,15 @@ flutter:
   uses-material-design: true
   assets:
     - assets/sounds/break_end.mp3
+
+# Launcher icon generation. Source art is produced by the shared generator:
+#   PYTHONPATH=~/testsAndMisc python3 -m python_pkg.app_icons generate --app <key>
+# then run: dart run flutter_launcher_icons
+flutter_launcher_icons:
+  android: true
+  ios: false
+  image_path: "assets/icon/icon.png"
+  adaptive_icon_background: "#1B1D21"
+  adaptive_icon_foreground: "assets/icon/icon_foreground.png"
+  adaptive_icon_monochrome: "assets/icon/icon_monochrome.png"
+  min_sdk_android: 21