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/rules/no-confusing-arrow.js

@@ -0,0 +1,127 @@
+/**
+ * @fileoverview A rule to warn against using arrow functions when they could be
+ * confused with comparisons
+ * @author Jxck <https://github.com/Jxck>
+ * @deprecated in ESLint v8.53.0
+ */
+
+"use strict";
+
+const astUtils = require("./utils/ast-utils.js");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Checks whether or not a node is a conditional expression.
+ * @param {ASTNode} node node to test
+ * @returns {boolean} `true` if the node is a conditional expression.
+ */
+function isConditional(node) {
+	return node && node.type === "ConditionalExpression";
+}
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		deprecated: {
+			message: "Formatting rules are being moved out of ESLint core.",
+			url: "https://eslint.org/blog/2023/10/deprecating-formatting-rules/",
+			deprecatedSince: "8.53.0",
+			availableUntil: "11.0.0",
+			replacedBy: [
+				{
+					message:
+						"ESLint Stylistic now maintains deprecated stylistic core rules.",
+					url: "https://eslint.style/guide/migration",
+					plugin: {
+						name: "@stylistic/eslint-plugin",
+						url: "https://eslint.style",
+					},
+					rule: {
+						name: "no-confusing-arrow",
+						url: "https://eslint.style/rules/no-confusing-arrow",
+					},
+				},
+			],
+		},
+		type: "suggestion",
+
+		docs: {
+			description:
+				"Disallow arrow functions where they could be confused with comparisons",
+			recommended: false,
+			url: "https://eslint.org/docs/latest/rules/no-confusing-arrow",
+		},
+
+		fixable: "code",
+
+		schema: [
+			{
+				type: "object",
+				properties: {
+					allowParens: { type: "boolean", default: true },
+					onlyOneSimpleParam: { type: "boolean", default: false },
+				},
+				additionalProperties: false,
+			},
+		],
+
+		messages: {
+			confusing:
+				"Arrow function used ambiguously with a conditional expression.",
+		},
+	},
+
+	create(context) {
+		const config = context.options[0] || {};
+		const allowParens = config.allowParens || config.allowParens === void 0;
+		const onlyOneSimpleParam = config.onlyOneSimpleParam;
+		const sourceCode = context.sourceCode;
+
+		/**
+		 * Reports if an arrow function contains an ambiguous conditional.
+		 * @param {ASTNode} node A node to check and report.
+		 * @returns {void}
+		 */
+		function checkArrowFunc(node) {
+			const body = node.body;
+
+			if (
+				isConditional(body) &&
+				!(allowParens && astUtils.isParenthesised(sourceCode, body)) &&
+				!(
+					onlyOneSimpleParam &&
+					!(
+						node.params.length === 1 &&
+						node.params[0].type === "Identifier"
+					)
+				)
+			) {
+				context.report({
+					node,
+					messageId: "confusing",
+					fix(fixer) {
+						// if `allowParens` is not set to true don't bother wrapping in parens
+						return (
+							allowParens &&
+							fixer.replaceText(
+								node.body,
+								`(${sourceCode.getText(node.body)})`,
+							)
+						);
+					},
+				});
+			}
+		}
+
+		return {
+			ArrowFunctionExpression: checkArrowFunc,
+		};
+	},
+};