Update book configuration

- Fix author name spelling: Don Jacobsmeyer
- Disable print functionality
- Remove playground configuration (not needed for non-code book)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: djacobsmeyer

book/book.toml

@@ -1,6 +1,6 @@
 [book]
 title = "Hold the Line: Making Better Decisions Together"
-authors = ["Don Jacobs Meyer"]
+authors = ["Don Jacobsmeyer"]
 description = "Learn to facilitate collaborative decisions that actually stick. A practical guide for anyone who runs meetings where decisions need to work."
 language = "en"
 src = "src"
@@ -16,17 +16,12 @@ additional-js = ["theme/analytics.js"]
 
 # Theme customization
 [output.html.print]
-enable = true
+enable = false
 
 [output.html.fold]
 enable = false
 level = 0
 
-[output.html.playground]
-editable = false
-copyable = true
-copy-js = true
-
 [output.html.search]
 enable = true
 limit-results = 30