create install.sh & readme

Signed-off-by: sbwml <admin@cooluc.com>

README.md

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+# luci-app-openlist
+
+🗂️ A file list program that supports multiple storage, powered by Gin and Solidjs.
+
+## How to build
+
+- Install `libfuse` development package.
+
+  - ubuntu/debian:
+    ```shell
+    sudo apt update
+    sudo apt install libfuse-dev
+    ```
+
+  - redhat:
+    ```shell
+    sudo yum install fuse-devel
+    ```
+
+  - arch:
+    ```shell
+    sudo pacman -S fuse2
+    ```
+
+- Enter in your openwrt dir
+
+- Openwrt official SnapShots
+
+  *1. requires golang 1.24.x or latest version (Fix build for older branches of OpenWrt.)*
+  ```shell
+  rm -rf feeds/packages/lang/golang
+  git clone https://github.com/sbwml/packages_lang_golang -b 24.x feeds/packages/lang/golang
+  ```
+
+  *2. get luci-app-openlist code & building*
+  ```shell
+  git clone https://github.com/sbwml/luci-app-openlist package/openlist
+  make menuconfig # choose LUCI -> Applications -> luci-app-openlist
+  make package/openlist/luci-app-openlist/compile V=s # build luci-app-openlist
+  ```
+
+--------------
+
+## How to install prebuilt packages
+
+- Login OpenWrt terminal (SSH)
+
+- Install `curl` package
+  ```shell
+  opkg update
+  opkg install curl
+  ```
+
+- Execute install script (Multi-architecture support)
+  ```shell
+  sh -c "$(curl -ksS https://raw.githubusercontent.com/sbwml/luci-app-openlist/main/install.sh)"
+  ```
+
+--------------
+
+![luci-app-openlist](https://github.com/user-attachments/assets/80593704-1e02-4bcf-8290-a0c7c37012f4)

install.sh

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+#!/bin/sh
+set -e
+
+# Define color codes and output functions
+RED='\033[1;31m'
+GREEN='\033[1;32m'
+RESET='\033[0m'
+
+msg_red()   { printf "${RED}%s${RESET}\n" "$*"; }
+msg_green() { printf "${GREEN}%s${RESET}\n" "$*"; }
+
+# Check if running on OpenWrt
+if [ ! -f /etc/openwrt_release ]; then
+    msg_red "Unknown OpenWrt Version"
+    exit 1
+fi
+
+# Read architecture information
+. /etc/openwrt_release
+DISTRIB_ARCH="${DISTRIB_ARCH:-unknown}"
+
+# Detect package manager and set SDK version
+if [ -x "/usr/bin/apk" ]; then
+    PKG_MANAGER="apk"
+    SDK="SNAPSHOT"
+elif command -v opkg >/dev/null 2>&1; then
+    PKG_MANAGER="opkg"
+    SDK="openwrt-24.10"
+else
+    msg_red "No supported package manager found."
+    exit 1
+fi
+
+# Check LuCI version compatibility
+if [ ! -d "/usr/share/luci/menu.d" ]; then
+    msg_red "OpenWrt LuCI version is not supported. The minimum required version is openwrt-21.02 or higher."
+    exit 1
+fi
+
+# Check available root partition space (at least 35MB required)
+ROOT_SPACE=$(df -m /usr | awk 'END{print $4}')
+if [ "$ROOT_SPACE" -lt 35 ]; then
+    msg_red "Error: The system storage space is less than 35MB."
+    exit 1
+fi
+
+# Create temporary directory and set up cleanup on exit
+TEMP_DIR="$(mktemp -d)"
+trap 'rm -rf "$TEMP_DIR"' EXIT
+
+# Check if the current platform is supported
+msg_green "Checking platform..."
+
+SUPPORTED_PLATFORMS="
+aarch64_cortex-a53
+aarch64_cortex-a72
+aarch64_cortex-a76
+aarch64_generic
+arm_arm1176jzf-s_vfp
+arm_arm926ej-s
+arm_cortex-a15_neon-vfpv4
+arm_cortex-a5_vfpv4
+arm_cortex-a7
+arm_cortex-a7_neon-vfpv4
+arm_cortex-a7_vfpv4
+arm_cortex-a8_vfpv3
+arm_cortex-a9
+arm_cortex-a9_neon
+arm_cortex-a9_vfpv3-d16
+arm_fa526
+arm_xscale
+i386_pentium-mmx
+i386_pentium4
+loongarch64_generic
+mips64_mips64r2
+mips64_octeonplus
+mips64el_mips64r2
+mips_24kc
+mips_4kec
+mips_mips32
+mipsel_24kc
+mipsel_24kc_24kf
+mipsel_74kc
+mipsel_mips32
+riscv64_riscv64
+x86_64
+"
+
+FOUND=0
+for arch in $SUPPORTED_PLATFORMS; do
+    if [ "$DISTRIB_ARCH" = "$arch" ]; then
+        FOUND=1
+        break
+    fi
+done
+
+if [ "$FOUND" -ne 1 ]; then
+    msg_red "Error! The current \"$DISTRIB_ARCH\" platform is not supported."
+    exit 1
+fi
+
+# Download the corresponding package archive
+PKG_FILE="$SDK-$DISTRIB_ARCH.tar.gz"
+PKG_URL="https://github.com/sbwml/luci-app-openlist/releases/latest/download/$PKG_FILE"
+
+msg_green "Downloading $PKG_URL ..."
+if ! curl --connect-timeout 5 -m 300 -kLo "$TEMP_DIR/$PKG_FILE" "$PKG_URL"; then
+    msg_red "Download $PKG_FILE failed."
+    exit 1
+fi
+
+# Extract and install packages
+msg_green "Installing Packages ..."
+tar -zxf "$TEMP_DIR/$PKG_FILE" -C "$TEMP_DIR/"
+for pkg in "$TEMP_DIR"/packages_ci/openlist*.ipk \
+           "$TEMP_DIR"/packages_ci/luci-app-openlist*.ipk \
+           "$TEMP_DIR"/packages_ci/luci-i18n-openlist-zh-cn*.ipk; do
+    [ -f "$pkg" ] && $PKG_MANAGER install "$pkg"
+done
+
+# Clean up temporary files and finish
+rm -rf /tmp/luci-*
+msg_green "Done!"