Implement ID-based routing and folder auto-generation from titles

Major features:
- Switch from slug-based to ID-based routing (/documents/123)
- Enable title editing with automatic slug/path regeneration
- Auto-generate folder structure from title slashes (e.g., Laravel/Livewire/Components)
- Persist sidebar folder open/close state using localStorage
- Remove slug unique constraint (ID routing makes it unnecessary)
- Implement recursive tree view with multi-level folder support

Architecture changes:
- DocumentService: Add generatePathAndSlug() for title-based path generation
- Routes: Change from {document:slug} to {document} for ID binding
- SidebarTree: Extract recursive rendering to partials/tree-item.blade.php
- Database: Remove unique constraint from documents.slug column

UI improvements:
- Display only last path component in sidebar (Components vs Laravel/Livewire/Components)
- Folder state persists across page navigation via localStorage
- Title field accepts slashes for folder organization

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

docker/mysql/my.cnf

@@ -0,0 +1,23 @@
+[mysqld]
+# 文字コード設定
+character-set-server = utf8mb4
+collation-server = utf8mb4_unicode_ci
+
+# タイムゾーン設定
+default-time-zone = '+09:00'
+
+# ログ設定
+general_log = 0
+slow_query_log = 1
+slow_query_log_file = /var/log/mysql/slow-query.log
+long_query_time = 2
+
+# パフォーマンス設定
+max_connections = 100
+max_allowed_packet = 64M
+
+[client]
+default-character-set = utf8mb4
+
+[mysql]
+default-character-set = utf8mb4

docker/nginx/default.conf

@@ -0,0 +1,36 @@
+server {
+    listen 80;
+    server_name localhost;
+    root /var/www/html/public;
+
+    index index.php index.html index.htm;
+
+    charset utf-8;
+
+    location / {
+        try_files $uri $uri/ /index.php?$query_string;
+    }
+
+    location = /favicon.ico { access_log off; log_not_found off; }
+    location = /robots.txt  { access_log off; log_not_found off; }
+
+    error_page 404 /index.php;
+
+    location ~ \.php$ {
+        fastcgi_pass php:9000;
+        fastcgi_index index.php;
+        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
+        include fastcgi_params;
+        fastcgi_hide_header X-Powered-By;
+    }
+
+    location ~ /\.(?!well-known).* {
+        deny all;
+    }
+
+    # キャッシュ設定
+    location ~* \.(jpg|jpeg|png|gif|ico|css|js|svg|woff|woff2|ttf|eot)$ {
+        expires 30d;
+        add_header Cache-Control "public, immutable";
+    }
+}

docker/php/Dockerfile

@@ -0,0 +1,36 @@
+FROM php:8.2-fpm
+
+# 必要なパッケージのインストール
+RUN apt-get update && apt-get install -y \
+    git \
+    curl \
+    libpng-dev \
+    libonig-dev \
+    libxml2-dev \
+    libzip-dev \
+    zip \
+    unzip \
+    && docker-php-ext-install pdo_mysql mbstring exif pcntl bcmath gd zip
+
+# Composerのインストール
+COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+
+# Node.jsとnpmのインストール（Laravel Mixやvite用）
+RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
+    && apt-get install -y nodejs
+
+# 作業ディレクトリの設定
+WORKDIR /var/www/html
+
+# パーミッション設定
+RUN chown -R www-data:www-data /var/www/html \
+    && chmod -R 755 /var/www/html
+
+# クリーンアップ
+RUN apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# ユーザーをwww-dataに切り替え
+USER www-data
+
+# PHP-FPMを実行
+CMD ["php-fpm"]

docker/php/php.ini

@@ -0,0 +1,29 @@
+[PHP]
+; 開発環境用の設定
+display_errors = On
+display_startup_errors = On
+error_reporting = E_ALL
+
+; メモリとアップロード制限
+memory_limit = 512M
+upload_max_filesize = 64M
+post_max_size = 64M
+
+; タイムゾーン設定
+date.timezone = Asia/Tokyo
+
+; セッション設定
+session.gc_maxlifetime = 1440
+session.cookie_httponly = On
+
+; その他の設定
+max_execution_time = 300
+max_input_time = 300
+
+; OPcache設定（パフォーマンス向上）
+opcache.enable = 1
+opcache.memory_consumption = 128
+opcache.interned_strings_buffer = 8
+opcache.max_accelerated_files = 10000
+opcache.revalidate_freq = 0
+opcache.validate_timestamps = 1