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>

resources/scss/components/_banner.scss

@@ -0,0 +1,36 @@
+@use '../abstracts/variables' as *;
+
+.banner {
+    margin-top: $space-6;
+    border-radius: $radius-xl;
+    padding: $space-4;
+    font-size: $font-sm;
+}
+
+.banner--warning {
+    border: 1px solid var(--color-warning-border);
+    background: var(--color-warning-bg);
+}
+
+.banner__title {
+    font-weight: 500;
+    color: var(--color-warning-title);
+}
+
+.banner__line {
+    margin-top: $space-1;
+    color: var(--color-warning-text);
+}
+
+.banner__code {
+    background: var(--color-warning-code-bg);
+    border-radius: $radius-sm;
+    padding: 0 $space-1;
+}
+
+.banner__close {
+    margin-top: $space-2;
+    color: var(--color-warning-title);
+    text-decoration: underline;
+    font-size: $font-sm;
+}