🆕 Add macOS application packaging support with custom Dock icon integration and build documentation.

.gitignore

@@ -1,5 +1,8 @@
 README.md.tinyenc
 secure-editor-go
+secure-editor-go.app
+logo.icns
+logo.iconset
 
 # ---> macOS
 # General

Info.plist

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleName</key>
+    <string>Secure Editor</string>
+    <key>CFBundleDisplayName</key>
+    <string>Secure Editor</string>
+    <key>CFBundleIdentifier</key>
+    <string>ink.hatter.secure-editor-go</string>
+    <key>CFBundleVersion</key>
+    <string>0.1.1</string>
+    <key>CFBundleShortVersionString</key>
+    <string>0.1.1</string>
+    <key>CFBundlePackageType</key>
+    <string>APPL</string>
+    <key>CFBundleExecutable</key>
+    <string>secure-editor-go</string>
+    <key>CFBundleIconFile</key>
+    <string>logo.icns</string>
+    <key>CFBundleIconName</key>
+    <string>logo</string>
+    <key>LSMinimumSystemVersion</key>
+    <string>10.13</string>
+    <key>NSHighResolutionCapable</key>
+    <true/>
+</dict>
+</plist>

README.md

@@ -8,6 +8,28 @@ go mod tidy
 go build
 ```
 
+## 打包为 macOS 应用（让 Dock 显示 LOGO）
+
+在 macOS 上，独立的命令行二进制在 Dock 中只会显示通用图标，`app.SetIcon` / `window.SetIcon` 无法改变 Dock 图标。要让 Dock 显示 `logo.jpeg`，需要将程序打包成 `.app` 应用包并附带 `.icns` 图标：
+
+```shell
+./build.sh                # 编译并生成 secure-editor-go.app（含由 logo.jpeg 转换的 logo.icns）
+./build.sh --binary-only  # 仅编译裸二进制
+```
+
+运行（仍以命令行参数方式调用包内可执行文件）：
+
+```shell
+./secure-editor-go.app/Contents/MacOS/secure-editor-go <file> aes-256-gcm <key> <nonce>
+```
+
+`build.sh` 使用 macOS 自带的 `sips` 与 `iconutil` 把 `logo.jpeg` 生成多尺寸的 `logo.icns`，再按 `Info.plist` 组装 `.app` 包。重新打包后若 Dock 图标未刷新，可执行：
+
+```shell
+/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -f secure-editor-go.app
+killall Dock
+```
+
 ## 功能特性
 
 - **AES-256-GCM 加解密**：以 `aes-256-gcm` 算法解密文件内容并在编辑器中展示，保存时重新加密写回（保留原文件权限位）。

build.sh

@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+# Build secure-editor-go and package it as a macOS .app bundle so the
+# Dock shows the bundled logo (iconutil/sips convert logo.jpeg -> logo.icns).
+#
+# Usage:
+#   ./build.sh                # build binary + assemble .app bundle
+#   ./build.sh --binary-only  # build only the plain binary, no bundle
+#
+# Run the app:
+#   ./secure-editor-go.app/Contents/MacOS/secure-editor-go <file> aes-256-gcm <key> <nonce>
+
+set -euo pipefail
+
+APP_NAME="secure-editor-go"
+APP_BUNDLE="${APP_NAME}.app"
+THIS_DIR="$(cd "$(dirname "$0")" && pwd)"
+cd "$THIS_DIR"
+
+BINARY_ONLY=0
+if [ "${1-}" = "--binary-only" ]; then
+    BINARY_ONLY=1
+fi
+
+# 1. Build the Go binary.
+echo "==> building binary"
+go build -o "$APP_NAME" .
+
+if [ "$BINARY_ONLY" -eq 1 ]; then
+    echo "==> done (binary only): $APP_NAME"
+    exit 0
+fi
+
+# 2. Generate logo.icns from logo.jpeg using macOS tooling.
+if [ -f logo.jpeg ]; then
+    echo "==> generating logo.icns"
+    rm -rf logo.iconset logo.icns
+    mkdir -p logo.iconset
+
+    gen() {
+        # $1 = pixel size, $2 = iconset file name (without .png)
+        sips -s format png -z "$1" "$1" logo.jpeg --out "logo.iconset/$2.png" >/dev/null
+    }
+
+    gen 16   icon_16x16
+    gen 32   icon_16x16@2x
+    gen 32   icon_32x32
+    gen 64   icon_32x32@2x
+    gen 128  icon_128x128
+    gen 256  icon_128x128@2x
+    gen 256  icon_256x256
+    gen 512  icon_256x256@2x
+    gen 512  icon_512x512
+    gen 1024 icon_512x512@2x
+
+    iconutil -c icns logo.iconset -o logo.icns
+    rm -rf logo.iconset
+else
+    echo "warning: logo.jpeg not found, bundle will have no icon" >&2
+fi
+
+# 3. Assemble the .app bundle.
+echo "==> assembling $APP_BUNDLE"
+rm -rf "$APP_BUNDLE"
+mkdir -p "$APP_BUNDLE/Contents/MacOS"
+mkdir -p "$APP_BUNDLE/Contents/Resources"
+cp "$APP_NAME" "$APP_BUNDLE/Contents/MacOS/$APP_NAME"
+[ -f logo.icns ] && cp logo.icns "$APP_BUNDLE/Contents/Resources/logo.icns"
+cp Info.plist "$APP_BUNDLE/Contents/Info.plist"
+
+# Refresh LaunchServices' view of the bundle so the icon takes effect.
+touch "$APP_BUNDLE"
+touch "$APP_BUNDLE/Contents/Info.plist"
+
+# 4. (Optional) register with LaunchServices so the icon is picked up.
+LSREGISTER="/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister"
+if [ -x "$LSREGISTER" ]; then
+    "$LSREGISTER" "$APP_BUNDLE" >/dev/null 2>&1 || true
+fi
+
+echo "==> done: $APP_BUNDLE"
+echo "    run: $APP_BUNDLE/Contents/MacOS/$APP_NAME <file> aes-256-gcm <key> <nonce>"

icon.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	_ "embed"
+
+	"fyne.io/fyne/v2"
+)
+
+//go:embed logo.jpeg
+var logoBytes []byte
+
+// appIcon returns the bundled logo as a Fyne resource, used as the
+// application/window icon shown while the editor loads.
+func appIcon() fyne.Resource {
+	return fyne.NewStaticResource("logo.jpeg", logoBytes)
+}

main.go

@@ -146,10 +146,12 @@ func main() {
 	isReadonly := isReadonly()
 
 	secureEditorApp := app.New()
+	secureEditorApp.SetIcon(appIcon())
 	if !isReadonly {
 		secureEditorApp.Settings().SetTheme(&lightEditorTheme{Theme: theme.DefaultTheme()})
 	}
 	window := secureEditorApp.NewWindow(Title)
+	window.SetIcon(appIcon())
 
 	cfg := loadConfig()
 	window.Resize(clampToScreen(fyne.NewSize(cfg.Width, cfg.Height)))