Fix MICR font path, date import, PDF button bug; clean up config; add TODO markers

- Hardcode GnuMICR.otf path in pdfService.js; remove MICR_FONT_PATH env var
- Fix normalizeDate to handle MM/DD/YY (2-digit year) and return null on no match
- Fix generatePdf button DOM bug: update span directly instead of overwriting textContent
- Remove .env.example and NTFY_URL from docker-compose (app has no required config)
- Remove redundant fonts volume mount from docker-compose (fonts bundled in image)
- Mark MVP TODO items complete; add // TODO comments in source for post-MVP features
- Update README: correct slot height, remove stale env var docs

src/routes/checks.js

@@ -4,6 +4,8 @@ const express = require('express');
 const router = express.Router();
 const db = require('../db/database');
 
+// TODO: Add ledger reporting -- date range filter, payee search, total amount display, CSV export
+
 // GET /api/checks - list all checks, newest first
 router.get('/', (req, res) => {
   const { after, printed } = req.query;
@@ -36,6 +38,8 @@ router.get('/:id', (req, res) => {
   res.json(check);
 });
 
+// TODO: Add payee address book -- store and recall payee name + address lines, autocomplete on new check form
+
 // POST /api/checks - create a new check
 router.post('/', (req, res) => {
   const { payee, amount, check_date, memo, note1, note2,