feat: add blu-site static site generator and fix language issues

Build a complete static site generator in Lux that faithfully clones
blu.cx (elmstatic). Generates 14 post pages, section indexes, tag pages,
and a home page with snippets grid from markdown content.

Language fixes discovered during development:
- Add \{ and \} escape sequences in string literals (lexer)
- Register String.indexOf and String.lastIndexOf in type checker
- Fix formatter to preserve brace escapes in string literals
- Improve LSP hover to show documentation for let bindings and functions

ISSUES.md documents 15 Lux language limitations found during the project.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

projects/blu-site/content/snippets/2000-01-07-books.md

@@ -0,0 +1,102 @@
+---
+title: Books
+tags: journal
+---
+
+# **Books**
+
+Below is a list of books and essays that have impacted me deeply:
+
+---
+
+## **History**
+
+- _History_ by Ralph Waldo Emerson
+
+### Ancient Greece
+
+- _The Life of Greece_ by Will Durant
+
+### Ancient Rome
+
+- _Caesar and Christ_ by Will Durant
+- _Decline and Fall of the Roman Empire_ by Edward Gibbon
+
+### America
+
+- _John Adams_ by David McCullough
+- _Washington: A Life_ by Ron Chernow
+- _Hamilton_ by Ron Chernow
+- _Thomas Jefferson: The Art of Power_ by Jon Meacham
+
+### Russia
+
+- _The Gulag Archipelago_ by Aleksandr Solzhenitsyn
+
+### Medicine
+
+- _Awakenings_ by Oliver Sacks
+
+---
+
+## **Biography**
+
+- _Surely You’re Joking, Mr. Feynman!_ by Richard Feynman
+
+---
+
+## **Philosophy**
+
+- _Self-Reliance_ by Ralph Waldo Emerson
+
+### Politics
+
+- _The Open Society and its Enemies_ by Karl Popper
+- _Beauty_ by Roger Scruton
+
+### Roman
+
+- _Meditations_ by Marcus Aurelius
+- _On the Shortness of Life_ by Seneca
+- _On Friendship_ by Cicero
+
+### Christian
+
+- _A Confession_ by Lev Tolstoy
+- _Fear and Trembling_ by Kierkegaard
+- _Answer to Job_ by Carl Jung
+
+### Cognition
+
+- _Gödel, Escher, Bach_ by Douglas Hofstadter
+
+### Morality
+
+- _Beyond Good and Evil_ by Friedrich Nietzsche
+- _Man’s Search for Meaning_ by Viktor Frankl
+- _The Genealogy of Morals_ by Friedrich Nietzsche
+
+---
+
+## **Novels**
+
+- _The Brothers Karamazov_ by Dostoevsky
+- _Crime and Punishment_ by Fyodor Dostoevsky
+
+## **Technology**
+
+- _The Sovereign Individual_ by James Dale Davidson & William Rees-Mogg
+
+### Bitcoin
+
+- _Mastering the Lightning Network_ by Andreas Antonopoulos
+- _Programming Bitcoin_ by Jimmy Song
+- _Mastering Bitcoin_ by Andreas Antonopoulos
+
+### Privacy
+
+- _Extreme Privacy_ by Michael Bazzell
+
+## **Psychology**
+
+- _Modern Man in Search of a Soul_ by Carl Jung