feat(web): Schedule and General become ES-module pages (stage 3) (#767)

* feat(web): Schedule and General become ES-module pages (stage 3)

Schedule and General follow stage 2 (#727): no inline scripts or inline
handlers in either partial. Their code moves to static/v3/js/pages/schedule.js
and pages/general.js, started per swap-in by the page registry.

- Schedule: both pickers are drawn from the saved config carried as JSON in
  data-* attributes. The forms' hx-on save handlers become one
  htmx:afterRequest listener on the page; the forms are marked
  data-reports-result, which app.js now treats like an hx-on after-request
  handler, so a save still shows one notification.
- General: the timezone picker reads data-timezone. The Security section's
  forms and buttons are delegated data-actions; requests go through
  core/api.js, so the login redirect is quiet, and a change made just
  before a swap is still reported.
- handleScheduleResponse, handleDimScheduleResponse and webLogin stay as
  deprecated aliases through window.LEDMatrix.
- New DOM suites test_schedule_page.js and test_general_page.js; the web
  login unit suite imports the module; test_es_modules.py pins the pages,
  the aliases, and the schedule config's round trip through its attribute.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(web): no unused catch bindings or computed writes in the stage 3 modules

Codacy flagged two unused catch variables and dynamic-key writes in
pages/schedule.js and boot.js. The schedule config is read with
getAttribute, and the default days and the webLogin alias object are built
with Object.fromEntries. No behaviour change.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

test/js/unit/test_restart_banner.js

@@ -19,7 +19,7 @@ const ok = (label, cond, extra) => cond
   ? (pass++, console.log('  ok   ' + label))
   : (fail++, console.log('  FAIL ' + label + (extra !== undefined ? '  ' + JSON.stringify(extra) : '')));
 
-function load() {
+function load(notes) {
   const handlers = {};
   const listen = (target) => (type, fn) => { (handlers[target + ':' + type] ||= []).push(fn); };
   const banner = { style: { display: 'none' } };
@@ -43,14 +43,18 @@ function load() {
       removeItem: (k) => { delete store[k]; },
       getItem: (k) => (k in store ? store[k] : null),
     },
-    showNotification: () => {},
+    showNotification: (m, t) => { if (notes) notes.push([m, t]); },
     setTimeout: () => 0,
   };
   vm.createContext(context);
   vm.runInContext(fs.readFileSync(path.join(V3, 'app.js'), 'utf8'), context);
   const afterRequest = (handlers['body:htmx:afterRequest'] || [])[0];
-  const fire = ({ status = 200, body, path: reqPath = '/api/v3/anything', reportsItself = false }) => {
-    const elt = { closest: () => (reportsItself ? {} : null) };
+  // `marks`: the attribute selectors the requesting element (or its form)
+  // matches, for app.js's elt.closest(<selector list>).
+  const fire = ({ status = 200, body, path: reqPath = '/api/v3/anything', reportsItself = false, marks = [] }) => {
+    const elt = {
+      closest: (sel) => (reportsItself || sel.split(',').some(s => marks.includes(s.trim())) ? {} : null),
+    };
     afterRequest({
       target: { closest: () => null },
       detail: {
@@ -100,5 +104,20 @@ console.log('\nhtmx after-request follows the flag, not the URL');
   ok('a flagged answer raises it, even from a form that reports itself', t.banner.style.display === 'block');
 }
 
+console.log('\nthe server message toast');
+{
+  const notes = [];
+  const t = load(notes);
+  const answer = { status: 'success', message: 'Schedule saved' };
+  t.fire({ body: answer });
+  ok('a plain htmx request shows the server message', notes.length === 1 && notes[0][0] === 'Schedule saved', notes);
+  t.fire({ body: answer, marks: ['[hx-on\\:htmx\\:after-request]'] });
+  ok('a form with its own hx-on after-request handler does not', notes.length === 1, notes);
+  // Page modules (js/pages/schedule.js) report a form's save from a listener
+  // and mark the form data-reports-result instead of an hx-on attribute.
+  t.fire({ body: answer, marks: ['[data-reports-result]'] });
+  ok('nor does a form a page module reports for (data-reports-result)', notes.length === 1, notes);
+}
+
 console.log(`\n${pass} passed, ${fail} failed`);
 process.exit(fail ? 1 : 0);