02-Jun-2026 — Brevo campaign send reliability, unconditional error logging, and email-composer recipi... #278

build 661 — commit 49f811f

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Follow-up to the committee Gmail inbox / mail work. Three related fixes plus a DRY consolidation of the error-logging convention.

Campaign send:

• Free Brevo plans reject a campaign tag with an empty-body HTTP 500. The send no longer provokes that failure: createCampaign checks the account plan up front (cached per API key) and only attaches the tag when the plan supports it, so free-plan sends succeed on the first call. The 405/500 tag fallback remains purely as a safety net for when the capability check cannot run.

Error logging (made unconditional and DRY):

• Add server/lib/shared/error-debug-log.ts: createErrorDebugLog(namespace) returns the standard debug("ERROR:" + envConfig.logNamespace(...)) logger, memoised and forced enabled, so errors always log.
• Add server/lib/brevo/common/error-log.ts: logBrevoError emits a single diagnostics object (request method/url + size-capped body with htmlContent omitted, HttpError statusCode and body, response status message and headers, error name and message) plus the full stack trace.
• Route the shared Brevo handleError through logBrevoError, and apply it to the Brevo modules whose catch blocks bypassed handleError.
• Converge every hand-rolled debug("ERROR:" + ...) declaration across the server (inbox, cloudflare, map-routes, mongo controllers, brevo) onto createErrorDebugLog; remove dead error loggers that were never used.

Email composer recipient labels:

• Stop the "All Members (4 members)" doubling. listNameImpliesMembers is the single guard; listNameAndCount and listSubscriberCount both use it. Lists whose name already ends in member/members render as "All Members - 4"; others as "1 Testing member" / "4 members". The three selector badges now share listSubscriberCount instead of hand-building the count inline, and the campaign-sent message drops the redundant "(campaign)" suffix.