feat(app,web,platform): brand all platform icons with the cg leaf monogram

- Master asset assets/icon/app_icon.jpg (2048x2048) plus idempotent
  assets/icon/generate_icons.py (Python/Pillow, Lanczos resampling) that
  regenerates every platform icon size; preview_contact_sheet.png
  documents the rendered variants.
- Web: favicon.png (32px) and icons/Icon-192/512.png gain a feathered
  circular alpha mask (removes the master's white JPEG corners); new
  Icon-maskable-192/512.png place the logo in the 80% safe circle over
  brand sage #D4E4C7; manifest.json and index.html swapped from Flutter
  placeholders to "GLP-1 Companion" naming with theme #375A53 /
  background #D4E4C7.
- Android: legacy mipmap-*/ic_launcher.png (48-192px) with transparent
  corners, plus first-ever adaptive icons: mipmap-anydpi-v26
  ic_launcher{,_round}.xml, a sage vector background, and 5-density
  foreground PNGs confining the logo to the 66/108dp safe circle.
- iOS: all 15 AppIcon.appiconset PNGs (20px-1024px) rendered opaque RGB
  with no alpha channel per App Store validation.
- macOS: app_icon_{16..1024}.png with transparent corners.
- Windows: multi-resolution app_icon.ico (16/24/32/48/64/128/256px).
- Docs: BUILD_STATE.md Post-Phase-7 icon branding entry.

Verified: PIL assertions on dimensions, color mode, alpha, and ICO
frames; adaptive-icon XML well-formedness; flutter build web
--no-tree-shake-icons and flutter build apk --debug package the new
assets.

BUILD_STATE.md

@@ -82,6 +82,9 @@
 - [x] Android toolchain fixes (2026-10-16): `flutter run` on an emulator failed on three pre-existing gaps (Android builds had never been exercised — Phase 6 gates ran on Windows/Web): (1) `flutter_local_notifications` requires core library desugaring → enabled `isCoreLibraryDesugaringEnabled` + `com.android.tools:desugar_jdk_libs:2.1.4` in `android/app/build.gradle.kts`; (2) Kotlin incremental compilation aborts when the pub cache lives on a different drive than the project (C: vs D:, "this and base files have different roots") → `kotlin.incremental=false` in `android/gradle.properties`; (3) the pinned `health` plugin declares minSdk 26 vs. Flutter's default 24 → `minSdk = maxOf(flutter.minSdkVersion, 26)` (Health Connect only ships on Android 8.0+). Verified: `flutter build apk --debug` → `✓ Built build\app\outputs\flutter-apk\app-debug.apk`.
 - [x] Mobile overflow fix (2026-10-16): the compound dropdown in `LogInjectionDialog` painted yellow/black stripes on phone widths — `DropdownButtonFormField`'s selected-item Row cannot ellipsize long labels ("Tirzepatide (Mounjaro / Zepbound)") without `isExpanded: true`. Fixed with `isExpanded: true` + `maxLines: 1`/`TextOverflow.ellipsis` on the menu items; regression tests in `test/features/medication/log_injection_dialog_test.dart` pump the dialog at 320 dp (both long labels) and 390 dp asserting no RenderFlex overflow (128/128 tests passing).
 
+## Post-Phase-7 Additions
+- [x] App icon branding (2026-10-16): replaced all stock Flutter icons with the "cg" leaf monogram brand mark. Master asset `assets/icon/app_icon.jpg` (2048×2048); `assets/icon/generate_icons.py` (Python/Pillow, Lanczos) regenerates every platform size idempotently: web (`favicon.png` 32, `icons/Icon-{192,512}.png` with feathered circular alpha, `icons/Icon-maskable-{192,512}.png` at 80% safe-zone over brand sage `#D4E4C7`), Android (legacy `mipmap-*/ic_launcher.png` 48–192 px + new adaptive icons: `mipmap-anydpi-v26/ic_launcher{,_round}.xml`, `drawable/ic_launcher_background.xml` sage vector, `drawable-*/ic_launcher_foreground.png` 66/108 dp safe circle), iOS (all 15 `AppIcon.appiconset` PNGs — opaque RGB, no alpha, per App Store validation), macOS (`app_icon_{16..1024}.png`), Windows (`app_icon.ico` multi-res 16–256 px). Web polish: `manifest.json` name/description/theme (`#375A53` teal, `#D4E4C7` sage) and `index.html` title/description/`theme-color` updated from Flutter placeholders. Verified: PIL dimension/mode/alpha assertions on every output + XML well-formedness + ICO frame enumeration; `flutter build web --no-tree-shake-icons` and `flutter build apk --debug` package the new assets.
+
 ## Active Verification Gates (Phase 7, 2026-10-16)
 - [x] `dart analyze lib test` (Zero issues)
 - [x] `flutter test` (all passing — 125/125)

android/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp" android:height="108dp"
+    android:viewportWidth="108" android:viewportHeight="108">
+    <path android:fillColor="#D4E4C7" android:pathData="M0,0h108v108h-108z"/>
+</vector>

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

@@ -0,0 +1,4 @@
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,4 @@
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

assets/icon/generate_icons.py

@@ -0,0 +1,147 @@
+"""Regenerate every platform icon from the master logo.
+
+Source of truth: assets/icon/app_icon.jpg (2048x2048).
+Run from anywhere:  python assets/icon/generate_icons.py
+
+Produces:
+  - Web:      favicon.png, icons/Icon-{192,512}.png, icons/Icon-maskable-{192,512}.png
+  - Android:  mipmap-*/ic_launcher.png (legacy) + adaptive icons (mipmap-anydpi-v26,
+              drawable/ic_launcher_background.xml, drawable-*/ic_launcher_foreground.png)
+  - iOS:      every AppIcon.appiconset PNG referenced by Contents.json (opaque, no alpha)
+  - macOS:    app_icon_{16..1024}.png (transparent corners, system masks them)
+  - Windows:  windows/runner/resources/app_icon.ico (16-256 px, multi-resolution)
+
+The logo is a full-bleed circle, so standard icons get a feathered circular alpha
+mask (removes the JPEG's white corners); maskable/adaptive variants scale the
+circle into the safe zone over the brand sage so any mask crop stays on-brand.
+"""
+from pathlib import Path
+
+from PIL import Image, ImageDraw, ImageFilter
+
+ROOT = Path(__file__).resolve().parents[2]
+SRC = Path(__file__).parent / "app_icon.jpg"
+
+# Brand colors sampled from the master logo.
+SAGE_RGB = (212, 228, 199)  # outer ring / maskable background
+TEAL_RGB = (55, 90, 83)     # inner circle (used for web manifest theme)
+
+RESAMPLE = Image.LANCZOS
+
+
+def circle_rgba(img: Image.Image) -> Image.Image:
+    """Return RGBA with a feathered circular alpha mask (design circle spans the full square)."""
+    rgba = img.convert("RGBA")
+    n = rgba.size[0]
+    mask = Image.new("L", (n, n), 0)
+    ImageDraw.Draw(mask).ellipse((0, 0, n - 1, n - 1), fill=255)
+    mask = mask.filter(ImageFilter.GaussianBlur(radius=max(1.0, n / 512)))
+    rgba.putalpha(mask)
+    return rgba
+
+
+def fit(img: Image.Image, size: int) -> Image.Image:
+    return img.resize((size, size), RESAMPLE)
+
+
+def save(img: Image.Image, rel: str) -> Path:
+    out = ROOT / rel
+    out.parent.mkdir(parents=True, exist_ok=True)
+    img.save(out)
+    print(f"  {rel}  {img.size[0]}x{img.size[1]}")
+    return out
+
+
+def main() -> None:
+    master = Image.open(SRC)
+    if master.size != (2048, 2048):
+        raise SystemExit(f"master must be 2048x2048, got {master.size}")
+    master_rgb = master.convert("RGB")
+    full_circle = circle_rgba(master_rgb)  # transparent corners, brand edge intact
+
+    print("Web:")
+    save(fit(full_circle, 32), "web/favicon.png")
+    save(fit(full_circle, 192), "web/icons/Icon-192.png")
+    save(fit(full_circle, 512), "web/icons/Icon-512.png")
+    for s in (192, 512):  # maskable: logo inside the 80% safe circle on brand sage
+        canvas = Image.new("RGB", (s, s), SAGE_RGB)
+        logo = fit(full_circle, int(s * 0.8))
+        canvas.paste(logo, ((s - logo.size[0]) // 2, (s - logo.size[1]) // 2), logo)
+        save(canvas, f"web/icons/Icon-maskable-{s}.png")
+
+    print("Android (legacy densities):")
+    for dpi, px in {"mdpi": 48, "hdpi": 72, "xhdpi": 96, "xxhdpi": 144, "xxxhdpi": 192}.items():
+        save(fit(full_circle, px), f"android/app/src/main/res/mipmap-{dpi}/ic_launcher.png")
+
+    print("Android (adaptive icons):")
+    # Foreground: 108 dp canvas, circular logo confined to the 66 dp safe circle.
+    for dpi, px in {"mdpi": 108, "hdpi": 162, "xhdpi": 216, "xxhdpi": 324, "xxxhdpi": 432}.items():
+        canvas = Image.new("RGBA", (px, px), (0, 0, 0, 0))
+        logo = fit(full_circle, int(px * 66 / 108))
+        canvas.paste(logo, ((px - logo.size[0]) // 2, (px - logo.size[1]) // 2), logo)
+        save(canvas, f"android/app/src/main/res/drawable-{dpi}/ic_launcher_foreground.png")
+
+    bg_xml = ROOT / "android/app/src/main/res/drawable/ic_launcher_background.xml"
+    bg_xml.parent.mkdir(parents=True, exist_ok=True)
+    bg_xml.write_text(
+        '<vector xmlns:android="http://schemas.android.com/apk/res/android"\n'
+        '    android:width="108dp" android:height="108dp"\n'
+        '    android:viewportWidth="108" android:viewportHeight="108">\n'
+        '    <path android:fillColor="#%02X%02X%02X" android:pathData="M0,0h108v108h-108z"/>\n'
+        "</vector>\n" % SAGE_RGB,
+        encoding="utf-8",
+    )
+    print("  android/app/src/main/res/drawable/ic_launcher_background.xml")
+
+    adaptive_xml = (
+        '<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">\n'
+        '    <background android:drawable="@drawable/ic_launcher_background"/>\n'
+        '    <foreground android:drawable="@drawable/ic_launcher_foreground"/>\n'
+        "</adaptive-icon>\n"
+    )
+    for name in ("ic_launcher.xml", "ic_launcher_round.xml"):
+        p = ROOT / "android/app/src/main/res/mipmap-anydpi-v26" / name
+        p.parent.mkdir(parents=True, exist_ok=True)
+        p.write_text(adaptive_xml, encoding="utf-8")
+        print(f"  android/app/src/main/res/mipmap-anydpi-v26/{name}")
+
+    print("iOS (opaque - App Store rejects alpha channels):")
+    ios_dir = "ios/Runner/Assets.xcassets/AppIcon.appiconset"
+    ios_sizes = {
+        "Icon-App-20x20@1x.png": 20, "Icon-App-20x20@2x.png": 40, "Icon-App-20x20@3x.png": 60,
+        "Icon-App-29x29@1x.png": 29, "Icon-App-29x29@2x.png": 58, "Icon-App-29x29@3x.png": 87,
+        "Icon-App-40x40@1x.png": 40, "Icon-App-40x40@2x.png": 80, "Icon-App-40x40@3x.png": 120,
+        "Icon-App-60x60@2x.png": 120, "Icon-App-60x60@3x.png": 180,
+        "Icon-App-76x76@1x.png": 76, "Icon-App-76x76@2x.png": 152,
+        "Icon-App-83.5x83.5@2x.png": 167,
+        "Icon-App-1024x1024@1x.png": 1024,
+    }
+    for name, px in ios_sizes.items():
+        fit(master_rgb, px).save(ROOT / ios_dir / name, "PNG")
+        print(f"  {ios_dir}/{name}  {px}x{px}")
+
+    print("macOS:")
+    mac_dir = "macos/Runner/Assets.xcassets/AppIcon.appiconset"
+    for px in (16, 32, 64, 128, 256, 512, 1024):
+        save(fit(full_circle, px), f"{mac_dir}/app_icon_{px}.png")
+
+    print("Windows:")
+    ico_path = ROOT / "windows/runner/resources/app_icon.ico"
+    fit(full_circle, 256).save(
+        ico_path,
+        sizes=[(16, 16), (24, 24), (32, 32), (48, 48), (64, 64), (128, 128), (256, 256)],
+    )
+    print("  windows/runner/resources/app_icon.ico  frames: 16-256 px")
+
+    # Sanity checks on the 512 web icon and the ICO.
+    chk = Image.open(ROOT / "web/icons/Icon-512.png").convert("RGBA")
+    c = chk.size[0] // 2
+    r, g, b, a = chk.getpixel((c, c))
+    assert g > r and a == 255, f"center should be opaque teal, got {(r, g, b, a)}"
+    assert chk.getpixel((2, 2))[3] == 0, "corner should be transparent"
+    assert Image.open(ico_path).format == "ICO"
+    print("OK: all icons generated and sanity-checked.")
+
+
+if __name__ == "__main__":
+    main()

web/index.html

@@ -18,18 +18,19 @@
 
   <meta charset="UTF-8">
   <meta content="IE=Edge" http-equiv="X-UA-Compatible">
-  <meta name="description" content="A new Flutter project.">
+  <meta name="description" content="Cross-platform GLP-1 medication, nutrition, and pantry tracking companion.">
+  <meta name="theme-color" content="#375A53">
 
   <!-- iOS meta tags & icons -->
   <meta name="mobile-web-app-capable" content="yes">
   <meta name="apple-mobile-web-app-status-bar-style" content="black">
-  <meta name="apple-mobile-web-app-title" content="glpcompanion">
+  <meta name="apple-mobile-web-app-title" content="GLP Companion">
   <link rel="apple-touch-icon" href="icons/Icon-192.png">
 
   <!-- Favicon -->
   <link rel="icon" type="image/png" href="favicon.png"/>
 
-  <title>glpcompanion</title>
+  <title>GLP-1 Companion</title>
   <link rel="manifest" href="manifest.json">
 </head>
 <body>

web/manifest.json

@@ -1,11 +1,11 @@
 {
-    "name": "glpcompanion",
-    "short_name": "glpcompanion",
+    "name": "GLP-1 Companion",
+    "short_name": "GLP Companion",
     "start_url": ".",
     "display": "standalone",
-    "background_color": "#0175C2",
-    "theme_color": "#0175C2",
-    "description": "A new Flutter project.",
+    "background_color": "#D4E4C7",
+    "theme_color": "#375A53",
+    "description": "Cross-platform GLP-1 medication, nutrition, and pantry tracking companion.",
     "orientation": "portrait-primary",
     "prefer_related_applications": false,
     "icons": [