Update Dockerfile

Dockerfile

@@ -1,9 +1,19 @@
 FROM php:8.2-apache
 
-# 1. Install basic dependencies (keep zip/unzip for general use)
+# 1. Install system dependencies for MySQLi and IMAP
 RUN apt-get update && apt-get install -y \
-    libpng-dev libonig-dev libxml2-dev zip unzip \
-    && docker-php-ext-install pdo_mysql mbstring exif pcntl bcmath gd
+    libpng-dev \
+    libonig-dev \
+    libxml2-dev \
+    zip \
+    unzip \
+    libc-client-dev \
+    libkrb5-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# 2. Configure and Install IMAP (Requires special config for SSL/Kerberos)
+RUN docker-php-ext-configure imap --with-kerberos --with-imap-ssl \
+    && docker-php-ext-install imap
 
 # 2. INSTALL AND ENABLE MYSQLI (This fixes your error)
 RUN docker-php-ext-install mysqli && docker-php-ext-enable mysqli