feat(web): React SPA with realtime task detail over WebSocket

Vite + React 19 + TS console-style operator UI: hash-routed Login,
Endpoints, Tasks, and TaskDetail (realtime accounts table over /ws,
Run gated on all accounts testing ok on both sides).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MMHQTtnQtQqL8muAXHr9kd

web/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.app.json" },
+    { "path": "./tsconfig.node.json" }
+  ]
+}