Add Cyst and Reactive Expressions demo pages under reactive islands

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Two new demo pages with live interactive islands:

Cyst (/geography/reactive/examples/cyst):
  Parent island with a cyst inside. Parent + button increments parent
  count, cyst + button increments cyst count. Cyst state survives
  parent re-renders. Shows the isolation boundary in action.

Reactive Expressions (/geography/reactive/examples/reactive-expressions):
  Temperature signal with 5 expression types all updating live:
  bare deref, str+deref, arithmetic+deref, full conversion string,
  conditional. Demonstrates that any expression containing deref
  auto-tracks signal dependencies.

Both verified reactive with Playwright clicks on the live server.
Nav entries added to reactive-examples-nav-items.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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giles

2026-03-26 08:44:49 +00:00

parent dc72aac5b1

commit 6e2696ca20

3 changed files with 118 additions and 495 deletions

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