tracking: OpenGD77 export issues

[pskillen]

Purpose

A standing tracker for problems with, and work owed by, the OpenGD77 CSV export tool (src/lib/export/opengd77/) that are not handled directly by another ticket or epic phase. Add items here as they surface.

Discovered during the #91 audit (see docs/features/data-model/vendor-agnostic-review.md).

Known issues

• Silent zone-member truncation. serialiseZones writes only Channel1…Channel80 and drops members beyond 80 with no warning, unlike RX group list truncation (32) which is at least tested. Emit an export warning and add a test. (review doc finding A)
• Vendor cardinality enforced in CRUD, not export. OPENGD77_MAX_ZONE_MEMBERS is enforced in mutations/validation/UI (src/lib/codeplugMutations.ts). Per AGENTS.md vendor boundaries, the limit should live at the export boundary only (truncate/warn), keeping CRUD uncapped. (review doc §6)
• Channel Number over-limit. When export assigns channel numbers (epic epic: pristine vendor-neutral internal data model (MVP) #93 Phase 1), surface a warning if channel count exceeds the OpenGD77 1–1023 range.

Related

• Epic epic: pristine vendor-neutral internal data model (MVP) #93 (pristine vendor-neutral internal data model) touches export number-assignment in Phase 1; remaining export concerns are tracked here.
• feat(export): OpenGD77 radio profile selection at export time #72 (OpenGD77 radio-variant picker at export) — where the per-variant member caps should ultimately be sourced from.