feat(frontend): purge all static content fallback files and enforce strict backend-only dynamic rendering

- Delete all legacy static content data files (members.ts, publications.ts, lectures.ts, standards.ts, projects.ts)
- Remove all fallback imports and static fallbacks across all page components
- Enforce strict dynamic runtime fetching where pages render empty datasets when Go backend server is unavailable

refer_landing_page/app/_components/ProjectPageView.tsx

@@ -1,5 +1,4 @@
 import React from "react";
-import { researchProjects as staticProjects } from "../../content/projects";
 import type { ResearchProject } from "../../content/types";
 import ProjectPageViewControls from "./ProjectPageViewControls";
 
@@ -8,7 +7,7 @@ interface ProjectPageViewProps {
 }
 
 export function ProjectPageView({ projects: projectsProp }: ProjectPageViewProps = {}) {
-  const projects = projectsProp ?? staticProjects;
+  const projects = projectsProp ?? [];
   const slugs = projects.map((p) => p.slug);
   const trackId = "research-projects-track";