Add toJSON() serialization helpers across all module categories on main.

Fourth pass: toJSON() delegates to snapshot() (or exportSnapshot/stateSnapshot) for JSON export and logging across agents, applications, consensus, core, encoding, experimental, indexes, media, messaging, network, observability, pear-platform, routing, scheduling, storage, supercomputer, trust, measurement, oracles, and time-ordering modules.

Co-authored-by: Cursor <[email protected]>

network-stack/hyper-p2p-overlay-topology/index.js

@@ -88,6 +88,10 @@ class HyperP2POverlayTopology extends EventEmitter {
     return { degree: this._neighbors.size, neighbors: [...this._neighbors.keys()] }
   }
 
+  toJSON () {
+    return this.snapshot()
+  }
+
   getStats () {
     return { ...this._stats, degree: this._neighbors.size, protocol: PROTOCOL }
   }