Major clean up and improvements to vimwiki compatibility and documentation.

Reviewed-on: #1

crates/nuwiki-lsp/src/wiki.rs

@@ -1,9 +1,9 @@
 //! `Wiki` aggregate — per-wiki state, even when there's only one.
 //!
-//! v1.0 shipped with a single `Arc<RwLock<WorkspaceIndex>>` on `Backend`.
-//! Phase 11 lifts that into a `Wiki` aggregate so Phase 18 (multi-wiki)
-//! only changes config shape, not data flow. Phases 12–17 always operate
-//! on a `Wiki`; in practice the `wikis` `Vec` has one entry until 18.
+//! The single `Arc<RwLock<WorkspaceIndex>>` on `Backend` is lifted into a
+//! `Wiki` aggregate so multi-wiki support only changes config shape, not
+//! data flow. Handlers always operate on a `Wiki`; in practice the `wikis`
+//! `Vec` has one entry until multi-wiki support lands.
 
 use std::path::Path;
 use std::sync::{Arc, RwLock};