Complete Next.js migration with SSR and Docker deployment

- Migrate from vanilla JavaScript SPA to Next.js 16 with App Router
- Add server-side rendering for all pages (Home, Compare, Rankings)
- Create individual school pages with dynamic routing (/school/[urn])
- Implement Chart.js and Leaflet map integrations
- Add comprehensive SEO with sitemap, robots.txt, and JSON-LD
- Set up Docker multi-service architecture (PostgreSQL, FastAPI, Next.js)
- Update CI/CD pipeline to build both backend and frontend images
- Fix Dockerfile to include devDependencies for TypeScript compilation
- Add Jest testing configuration
- Implement performance optimizations (code splitting, caching)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

nextjs-app/components/SchoolSearchModal.module.css

@@ -0,0 +1,177 @@
+.modalContent {
+  padding: 2rem;
+  max-width: 600px;
+  width: 90vw;
+}
+
+.title {
+  font-size: 1.5rem;
+  font-weight: 600;
+  color: var(--text-primary);
+  margin-bottom: 1.5rem;
+}
+
+.warning {
+  background: #fef3c7;
+  border: 1px solid #fde047;
+  color: #92400e;
+  padding: 1rem;
+  border-radius: var(--radius-md);
+  margin-bottom: 1rem;
+  font-size: 0.9375rem;
+}
+
+.searchContainer {
+  position: relative;
+  margin-bottom: 1.5rem;
+}
+
+.searchInput {
+  width: 100%;
+  padding: 0.875rem 1rem;
+  font-size: 1rem;
+  border: 2px solid var(--border-medium);
+  border-radius: var(--radius-md);
+  transition: all var(--transition);
+}
+
+.searchInput:focus {
+  outline: none;
+  border-color: var(--primary);
+  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
+}
+
+.searchSpinner {
+  position: absolute;
+  right: 1rem;
+  top: 50%;
+  transform: translateY(-50%);
+  width: 1.25rem;
+  height: 1.25rem;
+  border: 2px solid rgba(59, 130, 246, 0.3);
+  border-radius: 50%;
+  border-top-color: var(--primary);
+  animation: spin 0.6s linear infinite;
+}
+
+@keyframes spin {
+  to {
+    transform: translateY(-50%) rotate(360deg);
+  }
+}
+
+.results {
+  max-height: 400px;
+  overflow-y: auto;
+  display: flex;
+  flex-direction: column;
+  gap: 0.75rem;
+}
+
+.resultItem {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: 1rem;
+  padding: 1rem;
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-light);
+  border-radius: var(--radius-md);
+  transition: all var(--transition);
+}
+
+.resultItem:hover {
+  background: white;
+  box-shadow: var(--shadow-sm);
+}
+
+.schoolInfo {
+  flex: 1;
+  min-width: 0;
+}
+
+.schoolName {
+  font-size: 1rem;
+  font-weight: 600;
+  color: var(--text-primary);
+  margin-bottom: 0.5rem;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.schoolMeta {
+  display: flex;
+  gap: 1rem;
+  font-size: 0.875rem;
+  color: var(--text-secondary);
+}
+
+.schoolMeta span {
+  display: flex;
+  align-items: center;
+  gap: 0.25rem;
+}
+
+.addButton {
+  padding: 0.625rem 1.25rem;
+  font-size: 0.875rem;
+  font-weight: 500;
+  border: none;
+  border-radius: var(--radius-md);
+  cursor: pointer;
+  transition: all var(--transition);
+  white-space: nowrap;
+  background: var(--primary);
+  color: white;
+}
+
+.addButton:hover:not(:disabled) {
+  background: var(--primary-dark);
+}
+
+.addButton:disabled {
+  background: var(--secondary);
+  cursor: not-allowed;
+  opacity: 0.6;
+}
+
+.noResults {
+  text-align: center;
+  padding: 2rem;
+  color: var(--text-secondary);
+  font-size: 0.9375rem;
+}
+
+.hint {
+  text-align: center;
+  padding: 2rem;
+  color: var(--text-tertiary);
+  font-size: 0.9375rem;
+}
+
+/* Responsive */
+@media (max-width: 768px) {
+  .modalContent {
+    padding: 1.5rem;
+    width: 95vw;
+  }
+
+  .title {
+    font-size: 1.25rem;
+  }
+
+  .resultItem {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  .addButton {
+    width: 100%;
+  }
+
+  .schoolMeta {
+    flex-direction: column;
+    gap: 0.25rem;
+  }
+}