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-obj-calls.js

@@ -0,0 +1,99 @@
+/**
+ * @fileoverview Rule to flag use of an object property of the global object (Math and JSON) as a function
+ * @author James Allardice
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const {
+	CALL,
+	CONSTRUCT,
+	ReferenceTracker,
+} = require("@eslint-community/eslint-utils");
+const getPropertyName = require("./utils/ast-utils").getStaticPropertyName;
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+const nonCallableGlobals = ["Atomics", "JSON", "Math", "Reflect", "Intl"];
+
+/**
+ * Returns the name of the node to report
+ * @param {ASTNode} node A node to report
+ * @returns {string} name to report
+ */
+function getReportNodeName(node) {
+	if (node.type === "ChainExpression") {
+		return getReportNodeName(node.expression);
+	}
+	if (node.type === "MemberExpression") {
+		return getPropertyName(node);
+	}
+	return node.name;
+}
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		type: "problem",
+
+		docs: {
+			description:
+				"Disallow calling global object properties as functions",
+			recommended: true,
+			url: "https://eslint.org/docs/latest/rules/no-obj-calls",
+		},
+
+		schema: [],
+
+		messages: {
+			unexpectedCall: "'{{name}}' is not a function.",
+			unexpectedRefCall:
+				"'{{name}}' is reference to '{{ref}}', which is not a function.",
+		},
+	},
+
+	create(context) {
+		const sourceCode = context.sourceCode;
+
+		return {
+			Program(node) {
+				const scope = sourceCode.getScope(node);
+				const tracker = new ReferenceTracker(scope);
+				const traceMap = {};
+
+				for (const g of nonCallableGlobals) {
+					traceMap[g] = {
+						[CALL]: true,
+						[CONSTRUCT]: true,
+					};
+				}
+
+				for (const {
+					node: refNode,
+					path,
+				} of tracker.iterateGlobalReferences(traceMap)) {
+					const name = getReportNodeName(refNode.callee);
+					const ref = path[0];
+					const messageId =
+						name === ref ? "unexpectedCall" : "unexpectedRefCall";
+
+					context.report({
+						node: refNode,
+						messageId,
+						data: { name, ref },
+					});
+				}
+			},
+		};
+	},
+};