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-window_fixed.md

@@ -0,0 +1,23 @@
+---
+id: app-window_fixed
+name: App.window_fixed
+category: app
+kind: namespace-method
+tokens: App.window_fixed
+sig: App.window_fixed(fixed)
+tip: A window that cannot be resized or maximised.
+order: 51
+ns: App
+member: window_fixed
+---
+
+With `true`, the window has no resize grip and no maximise button - for a launcher or a dialog, which a player should not take for the game itself.
+
+Parameters:
+- `fixed` — `true` to fix the window's size, `false` to free it
+
+```ludic
+program Launcher {
+  entry { App.window_fixed(true) }
+}
+```