Show organization-owned channel bots in frontend registrations

[louis4li]

Background

Backend PR #3673 adds org-owned NyxID channel bot support to /api/channels/registrations.

The list response now includes owner scope display fields so the frontend can distinguish personal bots from organization-owned bots without calling NyxID org APIs itself:

• nyx_channel_bot_owner_scope_id
• nyx_channel_bot_owner_scope_name

For personal bots, nyx_channel_bot_owner_scope_name returns personal. For organization-owned bots, it returns the organization display name when NyxID /api/v1/orgs can resolve it; otherwise it may be null while the owner scope id is still present.

Requested frontend work

Update the channel registration UI so the "View all" / registrations list displays organization-owned channel bots clearly.

Expected behavior:

• Show personal bots with a personal owner label.
• Show organization-owned bots using nyx_channel_bot_owner_scope_name when present.
• Fall back to nyx_channel_bot_owner_scope_id or a neutral org label when the name is unavailable.
• Keep existing bind/update/delete affordances aligned with the backend owned field.
• Do not add frontend-side org enumeration for this view; NyxID visibility is already delegated through backend scope=all handling.

API contract

GET /api/channels/registrations?scope=all returns both bound and unbound NyxID channel bots visible to the caller through NyxID. Relevant row fields:

{
  "nyx_channel_bot_id": "...",
  "nyx_channel_bot_owner_scope_id": "org-or-personal-scope",
  "nyx_channel_bot_owner_scope_name": "personal or org display name",
  "owned": true
}

Acceptance criteria

• The registrations list has an owner/scope indicator for every row.
• Personal rows display personal.
• Organization-owned rows display the organization name when available.
• Organization-owned rows remain visible in the all-view even when not locally owned.
• The frontend does not make separate NyxID org lookup calls for this feature.