feat static pages system with dynamic footer and safe html rendering

src/app/pages/static-page/static-page.component.scss

@@ -0,0 +1,39 @@
+.static-page {
+  min-height: 45vh;
+}
+
+.static-page__state {
+  text-align: center;
+  padding: 2rem 0;
+  color: var(--text-secondary, #667a77);
+
+  h1 {
+    margin-bottom: 0.5rem;
+    color: var(--text-primary, #1e3c38);
+  }
+
+  a {
+    color: var(--primary-color, #497671);
+    text-decoration: none;
+  }
+}
+
+.static-page__content {
+  display: grid;
+  gap: 1rem;
+
+  h1 {
+    color: var(--text-primary, #1e3c38);
+    margin: 0;
+  }
+}
+
+.static-page__html {
+  color: var(--text-primary, #1e3c38);
+  line-height: 1.6;
+
+  h2,
+  h3 {
+    margin-top: 1.25rem;
+  }
+}