REFACTOR(repo): simplify project structure

- Move services/nextjs/ to nextjs/
- Move Dockerfile.prod to Dockerfile at root
- Remove deploy/ folder (K8s manifests moved to K3S-HOME/web-apps)
- Remove .gitea/ workflows
- Update GitHub Actions for new structure
- Remove develop branch triggers

nextjs/styles/home.module.css

@@ -0,0 +1,8 @@
+.container {
+  display: grid;
+  grid-template-columns: repeat(5, 1fr);
+  gap: 25px;
+  max-width: 90%;
+  width: 100%;
+  margin: 0 auto;
+}