Add Docker support with Dockerfile, docker-compose, and entrypoint script; update .gitignore and add .dockerignore

docker/entrypoint.sh

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+#!/bin/sh
+set -e
+
+APP_DIR=/var/www/html
+
+echo "──────────────────────────────────────────"
+echo " KOL Manager – Container Start"
+echo "──────────────────────────────────────────"
+
+cd "$APP_DIR"
+
+# ── 1. Bootstrap .env ───────────────────────
+if [ ! -f .env ]; then
+    if [ -f .env.docker ]; then
+        cp .env.docker .env
+        echo "[env] Copied .env.docker → .env"
+    else
+        echo "[env] WARNING: No .env or .env.docker found!"
+    fi
+fi
+
+# ── 2. Generate APP_KEY if empty ────────────
+if grep -qE '^APP_KEY=$' .env 2>/dev/null; then
+    echo "[key] Generating application key…"
+    php artisan key:generate --force --quiet
+fi
+
+# ── 3. Ensure SQLite database file exists ───
+if [ ! -f database/database.sqlite ]; then
+    echo "[db] Creating SQLite database file…"
+    touch database/database.sqlite
+fi
+
+# ── 4. Fix ownership / permissions ──────────
+chown -R www-data:www-data \
+    storage \
+    bootstrap/cache \
+    database
+chmod -R 775 \
+    storage \
+    bootstrap/cache \
+    database
+
+# ── 5. Run migrations ────────────────────────
+echo "[migrate] Running database migrations…"
+php artisan migrate --force --no-interaction
+
+# ── 6. Cache config / routes / views ────────
+echo "[optimize] Caching configuration…"
+php artisan config:cache  --quiet
+php artisan route:cache   --quiet
+php artisan view:cache    --quiet
+
+echo "──────────────────────────────────────────"
+echo " All checks passed. Starting services…"
+echo "──────────────────────────────────────────"
+
+# ── 7. Hand off to Supervisor ────────────────
+exec supervisord -c /etc/supervisord.conf

docker/nginx.conf

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+user www-data;
+worker_processes auto;
+pid /run/nginx.pid;
+error_log /dev/stderr warn;
+
+events {
+    worker_connections 1024;
+    multi_accept on;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    # Logging to stdout/stderr so Docker captures it
+    access_log /dev/stdout;
+    error_log  /dev/stderr warn;
+
+    sendfile        on;
+    tcp_nopush      on;
+    tcp_nodelay     on;
+    keepalive_timeout 65;
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml;
+
+    # Upload size limit (matches file uploads in the app)
+    client_max_body_size 64M;
+
+    server {
+        listen 80;
+        server_name _;
+
+        root /var/www/html/public;
+        index index.php;
+
+        charset utf-8;
+
+        # Laravel health-check endpoint
+        location = /up {
+            try_files $uri /index.php?$query_string;
+        }
+
+        # Main catch-all → Laravel router
+        location / {
+            try_files $uri $uri/ /index.php?$query_string;
+        }
+
+        # PHP-FPM handler
+        location ~ \.php$ {
+            fastcgi_pass            127.0.0.1:9000;
+            fastcgi_index           index.php;
+            include                 fastcgi_params;
+            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+            fastcgi_param PATH_INFO $fastcgi_path_info;
+
+            # Increase timeouts for long-running requests (PDF export, uploads)
+            fastcgi_read_timeout    300;
+            fastcgi_connect_timeout 60;
+            fastcgi_send_timeout    300;
+        }
+
+        # Deny access to hidden files (.env, .git, etc.)
+        location ~ /\.(?!well-known).* {
+            deny all;
+        }
+
+        # Cache static assets
+        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|otf)$ {
+            expires 1y;
+            add_header Cache-Control "public, immutable";
+            try_files $uri =404;
+        }
+    }
+}

docker/supervisord.conf

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+[supervisord]
+nodaemon=true
+user=root
+logfile=/dev/null
+logfile_maxbytes=0
+pidfile=/run/supervisord.pid
+
+[unix_http_server]
+file=/run/supervisor.sock
+
+[supervisorctl]
+serverurl=unix:///run/supervisor.sock
+
+[rpcinterface:supervisor]
+supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
+
+; ── Nginx ─────────────────────────────────────────────────────────────────
+[program:nginx]
+command=nginx -g "daemon off;"
+autostart=true
+autorestart=true
+priority=10
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+; ── PHP-FPM ───────────────────────────────────────────────────────────────
+[program:php-fpm]
+command=php-fpm --nodaemonize
+autostart=true
+autorestart=true
+priority=5
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+; ── Laravel Queue Worker ──────────────────────────────────────────────────
+[program:queue]
+command=php /var/www/html/artisan queue:work \
+    --sleep=3 \
+    --tries=3 \
+    --max-time=3600 \
+    --queue=default
+directory=/var/www/html
+user=www-data
+autostart=true
+autorestart=true
+priority=20
+numprocs=1
+startsecs=5
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0