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

API.customergroup.md

@@ -6,11 +6,28 @@ This document is auto-generated from the JSDoc comments in `src/store` by runnin
 
 *Source: `src/store/customergroup/create.js`*
 
-Creates a new customer group for a company.
+Creates a new customer group for the user's selected company.
+
+**Parameters**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| `googleAuthId` | `number` | The id of the Google auth user. |
+| `input` | `object` | The customer group input. |
+| `input.name` | `string` | The customer group name (must not be a reserved name). |
+
+**Returns**
+
+`Promise<{id: number, name: string, sort: number}>` — The created customer group.
+
+**Throws**
+
+`Error` — If the name is empty or reserved.
+
+**Example**
 
 ```js
-const fn = create(pool);
-const group = await fn(42, { name: 'Wholesale' });
+const group = await store.customergroup.create(42, { name: 'Wholesale' });
 // => { id, name, sort }
 ```
 
@@ -18,22 +35,49 @@ const group = await fn(42, { name: 'Wholesale' });
 
 *Source: `src/store/customergroup/delete.js`*
 
-Deletes a customer group for a company by its id.
+Deletes a customer group for the user's selected company by its id.
+
+**Parameters**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| `googleAuthId` | `number` | The id of the Google auth user. |
+| `id` | `number` | The id of the customer group to delete. |
+
+**Returns**
+
+`Promise<void>`
+
+**Throws**
+
+`Error` — If the customer group is not found.
+
+**Example**
 
 ```js
-const fn = del(pool);
-await fn(42, 5);
+await store.customergroup.delete(42, 5);
 ```
 
 ## `customergroup.list`
 
 *Source: `src/store/customergroup/list.js`*
 
-Lists the customer groups of a company.
+Lists the customer groups of the user's selected company.
+
+**Parameters**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| `googleAuthId` | `number` | The id of the Google auth user. |
+
+**Returns**
+
+`Promise<Array<{id: number, name: string, sort: number}>>` — The customer groups.
+
+**Example**
 
 ```js
-const fn = list(pool);
-const groups = await fn(42);
+const groups = await store.customergroup.list(42);
 // => [{ id, name, sort }]
 ```
 
@@ -41,11 +85,28 @@ const groups = await fn(42);
 
 *Source: `src/store/customergroup/order.js`*
 
-Reorders the customer groups of a company.
+Reorders the customer groups of the user's selected company.
+
+**Parameters**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| `googleAuthId` | `number` | The id of the Google auth user. |
+| `input` | `object` | The reorder input. |
+| `input.customergroupIds` | `Array<number>` | The customer group ids in their new order. |
+
+**Returns**
+
+`Promise<{customergroupIds: Array<number>}>` — The applied order.
+
+**Throws**
+
+`Error` — If the order is invalid.
+
+**Example**
 
 ```js
-const fn = order(pool);
-const result = await fn(42, { customergroupIds: [3, 1, 2] });
+const result = await store.customergroup.order(42, { customergroupIds: [3, 1, 2] });
 // => { customergroupIds: [3, 1, 2] }
 ```
 
@@ -53,10 +114,28 @@ const result = await fn(42, { customergroupIds: [3, 1, 2] });
 
 *Source: `src/store/customergroup/update.js`*
 
-Updates the name of a customer group for a company.
+Updates the name of a customer group for the user's selected company.
+
+**Parameters**
+
+| Name | Type | Description |
+| --- | --- | --- |
+| `googleAuthId` | `number` | The id of the Google auth user. |
+| `id` | `number` | The id of the customer group to update. |
+| `input` | `object` | The update input. |
+| `input.name` | `string` | The new customer group name. |
+
+**Returns**
+
+`Promise<{id: number, name: string, sort: number}>` — The updated customer group.
+
+**Throws**
+
+`Error` — If the customer group is not found or the name is empty.
+
+**Example**
 
 ```js
-const fn = update(pool);
-const group = await fn(42, 5, { name: 'Retail' });
+const group = await store.customergroup.update(42, 5, { name: 'Retail' });
 // => { id, name, sort }
 ```