web: add heartbeat and bounded reconnect tuning

tsconfig.json

@@ -14,5 +14,11 @@
     "allowSyntheticDefaultImports": true
   },
   "include": ["src/**/*"],
-  "exclude": ["node_modules", "dist", "src/**/*.test.ts", "src/**/*.test.tsx"]
+  "exclude": [
+    "node_modules",
+    "dist",
+    "src/**/*.test.ts",
+    "src/**/*.test.tsx",
+    "src/**/test-helpers.ts"
+  ]
 }