Major clean up and improvements to vimwiki compatibility and documentation.

Reviewed-on: #1

crates/nuwiki-lsp/tests/link_health.rs

@@ -1,4 +1,4 @@
-//! Phase 15: link-health diagnostics + TOC/links/orphans queries.
+//! Link-health diagnostics + TOC/links/orphans queries.
 
 use std::path::PathBuf;
 
@@ -630,7 +630,7 @@ fn anchor_matches_unicode_heading() {
 // ===== COMMANDS completeness =====
 
 #[test]
-fn commands_list_includes_phase15_entries() {
+fn commands_list_includes_link_health_entries() {
     let names: Vec<&str> = nuwiki_lsp::commands::COMMANDS.to_vec();
     for name in [
         "nuwiki.toc.generate",