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/p-locate/index.d.ts

@@ -0,0 +1,53 @@
+declare namespace pLocate {
+	interface Options {
+		/**
+		Number of concurrently pending promises returned by `tester`. Minimum: `1`.
+
+		@default Infinity
+		*/
+		readonly concurrency?: number;
+
+		/**
+		Preserve `input` order when searching.
+
+		Disable this to improve performance if you don't care about the order.
+
+		@default true
+		*/
+		readonly preserveOrder?: boolean;
+	}
+}
+
+/**
+Get the first fulfilled promise that satisfies the provided testing function.
+
+@param input - An iterable of promises/values to test.
+@param tester - This function will receive resolved values from `input` and is expected to return a `Promise<boolean>` or `boolean`.
+@returns A `Promise` that is fulfilled when `tester` resolves to `true` or the iterable is done, or rejects if any of the promises reject. The fulfilled value is the current iterable value or `undefined` if `tester` never resolved to `true`.
+
+@example
+```
+import pathExists = require('path-exists');
+import pLocate = require('p-locate');
+
+const files = [
+	'unicorn.png',
+	'rainbow.png', // Only this one actually exists on disk
+	'pony.png'
+];
+
+(async () => {
+	const foundPath = await pLocate(files, file => pathExists(file));
+
+	console.log(foundPath);
+	//=> 'rainbow'
+})();
+```
+*/
+declare function pLocate<ValueType>(
+	input: Iterable<PromiseLike<ValueType> | ValueType>,
+	tester: (element: ValueType) => PromiseLike<boolean> | boolean,
+	options?: pLocate.Options
+): Promise<ValueType | undefined>;
+
+export = pLocate;