v1.25.2 - Pack login fix

Fixes enigma <pack> (e.g. enigma helio) repeatedly asking you to log in.

The pack seeded its isolated context from the chosen account's credentials on every launch, overwriting a token the agent had already refreshed in place - which broke the next OAuth refresh and forced a re-login. Now the credentials are seeded only when the context has no usable token (first launch, or after a logout), and a stale (expired / not-signed-in) account is flagged with fix steps in both the CLI and the dashboard's account picker.

Ships enigma-cli@1.25.2 and @enigmax/dashboard@0.1.67.