Add Docker one-click deploy and data migration docs.

Enable PHP 8.2 + Apache compose stack with persistent data/uploads volumes and PhpSpreadsheet for xlsx import/export.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker/apache-vhost.conf

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+<VirtualHost *:80>
+    ServerAdmin webmaster@localhost
+    DocumentRoot /var/www/html/public
+
+    <Directory /var/www/html/public>
+        Options -Indexes +FollowSymLinks
+        AllowOverride All
+        Require all granted
+        DirectoryIndex index.php
+    </Directory>
+
+    # 禁止直接访问业务数据与源码目录
+    <DirectoryMatch "^/var/www/html/(app|data|uploads|vendor)">
+        Require all denied
+    </DirectoryMatch>
+
+    ErrorLog ${APACHE_LOG_DIR}/error.log
+    CustomLog ${APACHE_LOG_DIR}/access.log combined
+</VirtualHost>

docker/entrypoint.sh

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+#!/bin/sh
+set -e
+
+mkdir -p /var/www/html/data /var/www/html/uploads
+
+# 挂载卷后修正写权限，避免 SQLite / 上传失败
+chown -R www-data:www-data /var/www/html/data /var/www/html/uploads
+chmod -R 775 /var/www/html/data /var/www/html/uploads
+
+exec "$@"