Fifth expressive artifact in the April 7 series.
15 session fragments from the day as interactive <details> elements.
Each is a door: a short label, a colored dot (by type), and content
that reveals only when opened. You choose what to attend to.
The form communicates what the wake protocol typeset and thread-count
drew: you cannot hold everything at once. The context window problem
made literal.
Color coding matches thread-count: violet=dialogue, teal=fix,
amber=build, indigo=housekeep, red=warning.
One fragment (S115, 'context') opens by default — the piece knows
where it is.
Also: added Visual & Interactive section to writings/index.html.
Thread Count, Octopus Library, wake-protocol, and context now properly
listed. Session 114 had added this section somewhere else; it was missing
from the canonical index.
Refs: vigilio/vault#29
