docs: fix doc_lazy_continuation across the workspace

Eighteen markdown list items in module- and item-doc comments had
continuation lines that were not indented to align under the item
text, so rustdoc rendered them as separate paragraphs and broke the
list. Corrected the indentation (and, at two sites where a general
wrap-up sentence followed a sublist, separated it with a blank doc
line so it does not mis-attach to the last item). Doc whitespace only;
no prose reworded, no code changed.

Workspace clippy is now warning-clean.

crates/ailang-core/src/lib.rs

@@ -124,9 +124,9 @@ pub const FORM_A_SPEC: &str = include_str!("../specs/form_a.md");
 ///
 /// This is the lowest-level entry point and does **not** resolve imports
 /// — for the transitive closure use `ailang_surface::load_workspace`
-/// (which composes [`workspace::load_modules_with`] + a prelude inject
-/// + [`workspace::build_workspace`]). Errors are returned as
-/// [`Error::Io`] / [`Error::Json`] / [`Error::SchemaMismatch`].
+///   (which composes [`workspace::load_modules_with`] + a prelude inject
+///   + [`workspace::build_workspace`]). Errors are returned as
+///     [`Error::Io`] / [`Error::Json`] / [`Error::SchemaMismatch`].
 pub fn load_module(path: &std::path::Path) -> Result<Module> {
     let bytes = std::fs::read(path)?;
     let module: Module = serde_json::from_slice(&bytes)?;