Bug in selfie generation

[dr0wningfly]

Selfies are failing to generate most of the time for me, with the bracketed selfie text to staying visible in chat instead of triggering image generation.

Got co-pilot to successfully fix this locally for me.

Updated character-commands.ts
made SELFIE_RE accept:
[selfie]
[selfie: context="..."]
[selfie: ...] freeform text
now captures plain freeform selfie text as context and strips it from visible chat output

Added regression tests in character-commands.test.ts
covers both freeform [selfie: Mari looking flustered ...]
and explicit context="..." syntax

[SpicyMarinara]

We strengthened the regex in the upcoming version; selfies should now be generated even if the model messes up the prompt format.