Rewrite store JSDoc, split quote/order into modules, and generate typed API docs

- Rewrite JSDoc across all store methods to document the actual async
  methods (real params, returns, throws) instead of the internal wrappers
- Split quote/order into individual module files backed by shared
  manifestDoc helpers; remove the createStore factory and thin wrappers
- Deduplicate manifest line helpers into src/store/manifestLines.js
- Extend generate-api-doc.js to render parameter/return/throws types and
  emit per-namespace API.<module>.md files with an API.md index
- Regenerate all API docs

src/store/article/updateBySku.js

@@ -20,21 +20,26 @@ function formatUnitLabel(amount, symbol) {
   return `${Number(amount)}${sym}`;
 }
 
-/**
- * Updates an article's name and/or unit (SI and amount), recording history.
- *
- * @param {object} pool - The mssql connection pool.
- * @returns {Function} An async function that updates an article by SKU.
- *
- * @example
- * const fn = updateBySku(pool);
- * const article = await fn(42, 'SKU-1', { name: 'Cola 1L', unitSi: 'l', unitamount: 1 });
- * // => { id, sku, name, ... }
- */
 export default function updateBySku(pool) {
   const resolve = resolveArticleBySku(pool);
   const load = queryBySku(pool);
 
+  /**
+   * Updates an article's name and/or unit (SI and amount), recording history.
+   *
+   * @param {number} googleAuthId - The id of the Google auth user.
+   * @param {string} sku - The article SKU.
+   * @param {object} patch - The update patch.
+   * @param {string} [patch.name] - The new article name.
+   * @param {string} [patch.unitSi] - The new unit SI code.
+   * @param {number} [patch.unitamount] - The new unit amount (must be > 0).
+   * @returns {Promise<object>} The updated article.
+   * @throws {Error} If no valid field is provided or the article is not found.
+   *
+   * @example
+   * const article = await store.article.updateBySku(42, 'SKU-1', { name: 'Cola 1L', unitSi: 'l', unitamount: 1 });
+   * // => { id, sku, name, ... }
+   */
   return async (googleAuthId, sku, patch = {}) => {
     const hasName = Object.prototype.hasOwnProperty.call(patch, 'name');
     const hasUnitamount = Object.prototype.hasOwnProperty.call(patch, 'unitamount');