(core) Add LogMethods helper and use it for more JSON data in logs. Reduce unhelpful logging.

Summary:
- Sharing, Client, DocClients, HostingStorageManager all include available info.
- In HostingStorageManager, log numSteps and maxStepTimeMs, in case that helps
  debug SQLITE_BUSY problem.
- Replace some action-bundle logging with a JSON version aggregating some info.
- Skip logging detailed list of actions in production.

Test Plan: Tested manually by eyeballing log output in dev environment.

Reviewers: paulfitz

Reviewed By: paulfitz

Differential Revision: https://phab.getgrist.com/D3086

app/server/lib/DocSession.ts

@@ -154,6 +154,14 @@ export function getDocSessionAccess(docSession: OptDocSession): Role {
   throw new Error('getDocSessionAccess could not find access information in DocSession');
 }
 
+export function getDocSessionAccessOrNull(docSession: OptDocSession): Role|null {
+  try {
+    return getDocSessionAccess(docSession);
+  } catch (err) {
+    return null;
+  }
+}
+
 /**
  * Get cached information about the document, if available.  May be stale.
  */