Add DECK Frontend - Vite + TypeScript migration

- Migrated vanilla JS frontend to Vite + TypeScript
- Modular architecture: views, components, utils, api, state
- Three-panel layout: libraries (left), content (center), detail (right)
- Group name resolution via hstTags (set_hst -> readable name)
- Name priority: name_es -> alias -> ref -> hash truncated
- D3.js lazy loading in GraphView
- Hash-based routing
- Deployed to tzzrdeck.me

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

hst-frontend-new/src/api/graph.ts

@@ -0,0 +1,8 @@
+import { apiClientSafe } from './client.ts';
+import type { GraphEdge, TreeEdge } from '@/types/index.ts';
+
+export const fetchGraphEdges = (): Promise<GraphEdge[]> =>
+  apiClientSafe<GraphEdge[]>('/graph_hst', {}, []);
+
+export const fetchTreeEdges = (): Promise<TreeEdge[]> =>
+  apiClientSafe<TreeEdge[]>('/tree_hst', {}, []);