edit customer save button should return to customer list

CLAUDE.md

@@ -91,6 +91,13 @@ scripts/backup.ts     # nightly SQLite backup via better-sqlite3's backup API
   rather than a plain 3xx, since HTMX needs that header to force a full-page
   navigation after an XHR delete.
 
+## Verifying UI changes
+
+Don't spin up Playwright/chromium-cli/headless-browser automation to verify
+frontend changes in this repo. Make the code change, explain what you did and
+why it should work, and ask the user (Dad's the only one who runs this app)
+to check it in their own browser.
+
 ## Data model notes worth remembering
 
 - `order_number` starts at 8247, is allocated via `MAX(order_number) + 1` in

public/css/style.css

@@ -164,6 +164,7 @@ input:focus, select:focus, textarea:focus {
 button, .button-link {
   font-family: var(--font-body);
   font-size: 0.95rem;
+  line-height: 1.4;
   background: var(--color-wood-mid);
   color: var(--color-text-on-dark);
   border: none;

src/routes/customers.ts

@@ -55,7 +55,7 @@ router.post('/:id/edit', (req, res) => {
 
   if (info.changes === 0) return res.status(404).send('Customer not found');
 
-  res.redirect(303, `/customers/${req.params.id}/edit`);
+  res.redirect(303, '/customers');
 });
 
 export default router;