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/eslint/lib/config/default-config.js

@@ -0,0 +1,78 @@
+/**
+ * @fileoverview Default configuration
+ * @author Nicholas C. Zakas
+ */
+
+"use strict";
+
+//-----------------------------------------------------------------------------
+// Requirements
+//-----------------------------------------------------------------------------
+
+const Rules = require("../rules");
+
+//-----------------------------------------------------------------------------
+// Helpers
+//-----------------------------------------------------------------------------
+
+const sharedDefaultConfig = [
+	// intentionally empty config to ensure these files are globbed by default
+	{
+		files: ["**/*.js", "**/*.mjs"],
+	},
+	{
+		files: ["**/*.cjs"],
+		languageOptions: {
+			sourceType: "commonjs",
+			ecmaVersion: "latest",
+		},
+	},
+];
+
+exports.defaultConfig = Object.freeze([
+	{
+		plugins: {
+			"@": {
+				languages: {
+					js: require("../languages/js"),
+				},
+
+				/*
+				 * Because we try to delay loading rules until absolutely
+				 * necessary, a proxy allows us to hook into the lazy-loading
+				 * aspect of the rules map while still keeping all of the
+				 * relevant configuration inside of the config array.
+				 */
+				rules: new Proxy(
+					{},
+					{
+						get(target, property) {
+							return Rules.get(property);
+						},
+
+						has(target, property) {
+							return Rules.has(property);
+						},
+					},
+				),
+			},
+		},
+		language: "@/js",
+		linterOptions: {
+			reportUnusedDisableDirectives: 1,
+		},
+	},
+
+	// default ignores are listed here
+	{
+		ignores: ["**/node_modules/", ".git/"],
+	},
+
+	...sharedDefaultConfig,
+]);
+
+exports.defaultRuleTesterConfig = Object.freeze([
+	{ files: ["**"] }, // Make sure the default config matches for all files
+
+	...sharedDefaultConfig,
+]);