v0.2.0

feat: short event titles "Scouts <name> - <summary>"

The extractor now also returns a short summary (1-3 words) per item, the
only field the model writes instead of copying. normalize sanitises it and
falls back to the verbatim title when it is unusable; the verbatim title
moves into the notes so nothing is lost. Cancellations read
"Geen scouts (<event>)" or "Geen scouts".

Titles render as "Scouts <name> - <summary>" (group events
"Scouts - <summary>"). activity_from_summary still parses the pre-0.2
"<name> scouts: ..." form so existing events update in place.

The prompt also states that a "Geen scouts" remark on a named event's row
is one item, and that a part of day such as "Avond" is a start time.
PROMPT_VERSION bumped, so cached extractions are redone.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UsbTfysTyvDquAUwNh99Dj