Initial commit: OAuth IAM Laravel application

Laravel-based OAuth/IAM service with Passport, Vue 3 frontend, and
Docker Compose setup for local and production deployment.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,76 @@
+# syntax=docker/dockerfile:1
+
+#
+# ---- 1. Frontend build (Vite: Vue + TS + SCSS) ----
+#
+FROM node:20-alpine AS frontend
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+COPY resources/ resources/
+COPY vite.config.ts tsconfig.json tsconfig.node.json ./
+RUN npm run build
+
+#
+# ---- 2. PHP dependencies (no dev, no scripts — no app code/DB available yet) ----
+#
+FROM composer:2 AS vendor
+WORKDIR /app
+COPY composer.json composer.lock ./
+RUN composer install \
+    --no-dev \
+    --no-scripts \
+    --no-interaction \
+    --no-progress \
+    --prefer-dist \
+    --optimize-autoloader
+
+#
+# ---- 3. Application image (PHP-FPM) ----
+#
+FROM php:8.4-fpm-alpine AS app
+
+RUN apk add --no-cache \
+        postgresql-libs \
+        icu-libs \
+        oniguruma \
+        libzip \
+        su-exec \
+    && apk add --no-cache --virtual .build-deps \
+        postgresql-dev \
+        icu-dev \
+        oniguruma-dev \
+        libzip-dev \
+        linux-headers \
+        $PHPIZE_DEPS \
+    && docker-php-ext-install -j$(nproc) pdo pdo_pgsql bcmath intl zip pcntl opcache \
+    && pecl install redis \
+    && docker-php-ext-enable redis \
+    && apk del .build-deps
+
+COPY docker/php/production.ini /usr/local/etc/php/conf.d/zz-production.ini
+COPY docker/php/opcache.ini /usr/local/etc/php/conf.d/zz-opcache.ini
+
+WORKDIR /var/www/html
+
+COPY --from=vendor /app/vendor vendor/
+COPY . .
+COPY --from=frontend /app/public/build public/build
+
+RUN php artisan package:discover --ansi
+
+RUN chown -R www-data:www-data storage bootstrap/cache \
+    && chmod -R 775 storage bootstrap/cache
+
+COPY docker/php/entrypoint.sh /usr/local/bin/entrypoint.sh
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
+ENTRYPOINT ["entrypoint.sh"]
+CMD ["php-fpm"]
+
+#
+# ---- 4. Nginx (static assets + reverse proxy to php-fpm) ----
+#
+FROM nginx:1.27-alpine AS nginx
+COPY --from=frontend /app/public /var/www/html/public
+COPY docker/nginx/default.conf /etc/nginx/conf.d/default.conf