agents: showing two accounts of the same agent

[mikebronner]

The agents panel picks up any record dropped in ~/.local/state/omarchy/agents/usage/, which makes a second Claude account almost work — I have a personal Max 20x and a work Team account in separate CLAUDE_CONFIG_DIRs, and a second collector writing its own record gives me two working tabs with correct per-account limits.

The one thing that can't be done from outside the plugin is the mark. The record's id is doing double duty as both the uniqueness key and the icon lookup:

Main.qml:194 — localIds[id] = true, so ids must be unique
Panel.qml:292 — candidates are built from providerId alone

So a second Claude account has to take a distinct id, and that id then has no assets/.svg and falls back to the generic glyph. Display naming already has this separation (providerName: String(record.name || record.id)) — the icon just didn't get the same escape hatch.

Smallest thing that would fix it: an optional iconId on the record, defaulting to id.

Main.qml    iconId: String(record.iconId || record.id)
Panel.qml   candidates from p.iconId instead of p.providerId

Backward compatible, no change for existing records, and it keeps the resolve-by-convention design with an opt-out. Happy to send a PR if that seems like the right shape — or if multiple accounts per agent is better modelled first-class, I'd rather follow that.