feat: Phase 1 — extract the client (web SPA + desktop) to dtoro/oikos-web

Problem: the hexagonal refactor churns the backend tree for nine more
phases; the UI delivery stack (web/ SPA, cmd/desktop Wails wrapper,
compose/web image) must move to its own repo first so doc/layout
rewrites land once on a backend-only tree.

Change:
- New repo git.hubris.network/dtoro/oikos-web (v0.33.0): web/, desktop/
  (updateURL repointed to oikos-web releases), compose/, own CI (web +
  desktop jobs), own deploy script (CI-green gate, TOCTOU guard,
  version-tagged images, prune-to-3), own webhook receiver on :9798 +
  launchd unit, own compose project publishing the same 8091:80.
- Cutover executed on mac-mini in order: oikos stack's web service
  stopped+removed, oikos-web project brought up on 8091; outer Caddy
  untouched (targets the published port) — serving + Authentik flow +
  /wails 404 quirk verified post-cutover.
- Stripped from oikos: web/, cmd/desktop/, compose/web/, desktop CI
  workflow, ci.yml web job, Makefile ui/desktop/desktop-package/install
  targets, the compose web service, oikos-web from deploy.sh's fallback
  prune list; wails + go-keyring dropped from go.mod, vendor synced.
- README / CONTRIBUTING / AGENTS.md / .agents dev+operations docs now
  point at the new repo; mbse + mascot design docs carry a path note.

Risk: production SPA serving depends on the new pipeline now; rollback
is versioned-image re-up of the old web service from a pre-split
checkout (port 8091). Desktop builds installed before the split still
check dtoro/oikos releases — one manual reinstall, noted in the
oikos-web release notes.

Verification: go vet, make test (race), make generate-check, golangci
(no new findings; baseline down 400→365); post-cutover curls —
localhost:8091 200, /wails/runtime.js 404, outer Caddy 302 Authentik.

web/node_modules/events/tests/index.js

@@ -0,0 +1,64 @@
+var test = require('tape');
+var functionsHaveNames = require('functions-have-names');
+var hasSymbols = require('has-symbols');
+
+require('./legacy-compat');
+var common = require('./common');
+
+// we do this to easily wrap each file in a mocha test
+// and also have browserify be able to statically analyze this file
+var orig_require = require;
+var require = function(file) {
+    test(file, function(t) {
+        // Store the tape object so tests can access it.
+        t.on('end', function () { delete common.test; });
+        common.test = t;
+
+        try {
+          var exp = orig_require(file);
+          if (exp && exp.then) {
+            exp.then(function () { t.end(); }, t.fail);
+            return;
+          }
+        } catch (err) {
+          t.fail(err);
+        }
+        t.end();
+    });
+};
+
+require('./add-listeners.js');
+require('./check-listener-leaks.js');
+require('./errors.js');
+require('./events-list.js');
+if (typeof Promise === 'function') {
+  require('./events-once.js');
+} else {
+  // Promise support is not available.
+  test('./events-once.js', { skip: true }, function () {});
+}
+require('./listener-count.js');
+require('./listeners-side-effects.js');
+require('./listeners.js');
+require('./max-listeners.js');
+if (functionsHaveNames()) {
+  require('./method-names.js');
+} else {
+  // Function.name is not supported in IE
+  test('./method-names.js', { skip: true }, function () {});
+}
+require('./modify-in-emit.js');
+require('./num-args.js');
+require('./once.js');
+require('./prepend.js');
+require('./set-max-listeners-side-effects.js');
+require('./special-event-names.js');
+require('./subclass.js');
+if (hasSymbols()) {
+  require('./symbols.js');
+} else {
+  // Symbol is not available.
+  test('./symbols.js', { skip: true }, function () {});
+}
+require('./remove-all-listeners.js');
+require('./remove-listeners.js');