feat(v0.8.670): slash registry CSV and invoke audit mesh parity

Implement Phase 695 signed slash command registry CSV and slash invoke
audit export across delivery-receipts, platform gossip (RPC 108/109),
slash-csv-ui modal, agentctl journeys, and test:ci-phase695 regression.

Also backfill relay/worker CSV styles missing from pearcord.css and bump
phase687 boot gate to 0.8.670 for RELEASE_CI continuity.

index.js

@@ -526,6 +526,12 @@ class PearcordGuild extends EventEmitter {
     if (method === RPC.WEBHOOK_EXECUTE_EXPORT_CSV_SYNC) {
       this.emit('webhook-execute-export-csv-sync', payload)
     }
+    if (method === RPC.SLASH_REGISTRY_CSV_SYNC) {
+      this.emit('slash-registry-csv-sync', payload)
+    }
+    if (method === RPC.SLASH_INVOKE_AUDIT_EXPORT_CSV_SYNC) {
+      this.emit('slash-invoke-audit-export-csv-sync', payload)
+    }
     if (method === RPC.MESSAGE_SEARCH_REQUEST) {
       this.emit('message-search-request', payload)
     }
@@ -758,6 +764,14 @@ class PearcordGuild extends EventEmitter {
       this.emit('webhook-execute-export-csv-sync', payload)
       return
     }
+    if (method === RPC.SLASH_REGISTRY_CSV_SYNC) {
+      this.emit('slash-registry-csv-sync', payload)
+      return
+    }
+    if (method === RPC.SLASH_INVOKE_AUDIT_EXPORT_CSV_SYNC) {
+      this.emit('slash-invoke-audit-export-csv-sync', payload)
+      return
+    }
     if (method === RPC.AUDIT_EXPORT_ARCHIVE) {
       this.emit('audit-export-archive', payload)
       return
@@ -1047,6 +1061,14 @@ class PearcordGuild extends EventEmitter {
     broadcastGossip(this, RPC.WEBHOOK_EXECUTE_EXPORT_CSV_SYNC, payload)
   }
 
+  gossipSlashRegistryCsvSync (payload) {
+    broadcastGossip(this, RPC.SLASH_REGISTRY_CSV_SYNC, payload)
+  }
+
+  gossipSlashInvokeAuditExportCsvSync (payload) {
+    broadcastGossip(this, RPC.SLASH_INVOKE_AUDIT_EXPORT_CSV_SYNC, payload)
+  }
+
   gossipAuditExportArchive (payload) {
     broadcastGossip(this, RPC.AUDIT_EXPORT_ARCHIVE, payload)
   }