feat(observability,encoding,network,pubsub): expand support category modules

- stats-exporter: snapshot history, compare, filter
- health-probe: unhealthyPeers, averageRtt, pruneStale
- schema-validator: assertValid, validateBatch, maxLength rules
- compact-codec-bridge: encodeBatch, listCodecs
- discovery-health: topPeers, pruneStale, averageRtt
- peer-bootstrap-store: removeBootstrap, findByHint
- retained-messages: retainBatch, totalRetained, channelCount
- ci: restore flat-repo production test workflow

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

network-discovery/hyper-p2p-peer-bootstrap-store/index.js

@@ -41,6 +41,23 @@ class HyperP2PPeerBootstrapStore extends EventEmitter {
     return [...this._bootstraps.values()]
   }
 
+  removeBootstrap (peerId) {
+    const ok = this._bootstraps.delete(peerId)
+    if (ok) {
+      this._gossip({ type: 'bootstrap-remove', peerId, at: Date.now() })
+      this.emit('remove', { peerId })
+    }
+    return ok
+  }
+
+  findByHint (key, value) {
+    return this.allBootstraps().filter((e) => e.hints && e.hints[key] === value)
+  }
+
+  bootstrapCount () {
+    return this._bootstraps.size
+  }
+
   _gossip (data) {
     if (!this._peerMsgs) return
     gossipSend(this, data)
@@ -48,6 +65,10 @@ class HyperP2PPeerBootstrapStore extends EventEmitter {
   }
 
   _onGossip (data, peerInfo) {
+    if (data.type === 'bootstrap-remove' && data.peerId) {
+      this._bootstraps.delete(data.peerId)
+      return
+    }
     if (!data || data.type !== 'bootstrap-add' || !data.peerId) return
     this._stats.gossipIn++
     const from = data.from || (peerInfo && peerInfo.publicKey