docs: make technical prose concrete

scripts/doc-typecheck-paths.ts

@@ -1,6 +1,6 @@
 /** Map one workspace source alias target to its declaration-build target. */
 export function builtDeclarationPath(candidate: string): string {
-  // Two workspace shapes exist: whole-package entries end in /src, subpath
+  // Two workspace path forms exist: whole-package entries end in /src, subpath
   // wildcards (apiproxy's browser-safe /api and /client channels) in /src/*.
   if (candidate.endsWith('/src')) {
     return `${candidate.slice(0, -'/src'.length)}/lib/types`