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/unit/delete.js

@@ -1,19 +1,20 @@
 import { DELETE_BY_COMPANY_AND_SI } from '../../sql/unit.js';
 import resolveSelectedCompanyAccess from '../companyuser/resolveSelectedCompanyAccess.js';
 
-/**
- * Deletes a unit for a company by its SI code.
- *
- * @param {object} pool - The mssql connection pool.
- * @returns {Function} An async function that deletes a unit.
- *
- * @example
- * const fn = del(pool);
- * await fn(42, 'l');
- */
 export default function del(pool) {
   const access = resolveSelectedCompanyAccess(pool);
 
+  /**
+   * Deletes a unit for the user's selected company by its SI code.
+   *
+   * @param {number} googleAuthId - The id of the Google auth user.
+   * @param {string} si - The SI code of the unit to delete.
+   * @returns {Promise<void>}
+   * @throws {Error} If the unit is not found.
+   *
+   * @example
+   * await store.unit.delete(42, 'l');
+   */
   return async (googleAuthId, si) => {
     if (!si?.trim()) {
       throw new Error('Unit not found');