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/setPricesBySku.js

@@ -42,22 +42,24 @@ function normalizePrices(prices) {
   return normalized;
 }
 
-/**
- * Replaces the price list of an article by its SKU.
- *
- * @param {object} pool - The mssql connection pool.
- * @returns {Function} An async function that sets article prices.
- *
- * @example
- * const fn = setPricesBySku(pool);
- * const article = await fn(42, 'SKU-1', [{ price: 1.5, tax: 19, minmultiplier: 1 }]);
- * // => { id, sku, name, ... }
- */
 export default function setPricesBySku(pool) {
   const resolve = resolveArticleBySku(pool);
   const ensureTax = taxEnsure(pool);
   const load = queryBySku(pool);
 
+  /**
+   * Replaces the price list of an article by its SKU.
+   *
+   * @param {number} googleAuthId - The id of the Google auth user.
+   * @param {string} sku - The article SKU.
+   * @param {Array<{price: number, tax: number, minmultiplier?: number}>} prices - The price entries (minmultiplier defaults to 1).
+   * @returns {Promise<object>} The updated article.
+   * @throws {Error} If the prices are invalid or the article is not found.
+   *
+   * @example
+   * const article = await store.article.setPricesBySku(42, 'SKU-1', [{ price: 1.5, tax: 19, minmultiplier: 1 }]);
+   * // => { id, sku, name, ... }
+   */
   return async (googleAuthId, sku, prices) => {
     const normalized = normalizePrices(prices);