Complete module API expansion: snapshot() on all remaining modules.

Adds snapshot(), clearAll aliases, and batch helpers across storage (hyperbee, hypercore, hyperdrive, autobase), indexes, pear-platform, trust, routing intent-router, and temporal-index.

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

pear-platform/hyper-pear-update-gossip/index.js

@@ -95,6 +95,10 @@ class HyperPearUpdateGossip extends EventEmitter {
     return { subs, history }
   }
 
+  snapshot () {
+    return { subscribers: this._subs.size, hasLatest: !!this._latest }
+  }
+
   _notify (update) {
     for (const fn of this._subs) {
       try { fn(update) } catch (_) { /* ignore */ }