feat(tools): L10 ludic-fmt enforces a project's style

lint lines in package.ludic - one_statement, max_file_lines, max_function_lines,
max_comment_lines, max_header_lines, paths, baseline - checked by ludic-fmt --check
<files> and ludic-fmt --lint (the project), at the line; a baseline ratchet lets a
rule arrive in a codebase that breaks it (--init-baseline), lowered as it is fixed.
check-impl reads the alias declarations too (it had been blind to every namespace
L6 moved out of the compiler), and eight methods get their pages; a test holds the
formatter to keeping type arguments together (L5).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/language/app/app-monitor_count.md

@@ -0,0 +1,20 @@
+---
+id: app-monitor_count
+name: App.monitor_count
+category: app
+kind: namespace-method
+tokens: App.monitor_count
+sig: App.monitor_count() -> int
+tip: How many displays the machine has.
+order: 49
+ns: App
+member: monitor_count
+---
+
+The number of displays attached, for a setting that chooses which one the game opens on; 1 on a platform that reports only the main one.
+
+```ludic
+program Screens {
+  entry { print(App.monitor_count()) }
+}
+```