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-unused-labels.js

@@ -0,0 +1,158 @@
+/**
+ * @fileoverview Rule to disallow unused labels.
+ * @author Toru Nagashima
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("./utils/ast-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		type: "suggestion",
+
+		docs: {
+			description: "Disallow unused labels",
+			recommended: true,
+			url: "https://eslint.org/docs/latest/rules/no-unused-labels",
+		},
+
+		schema: [],
+
+		fixable: "code",
+
+		messages: {
+			unused: "'{{name}}:' is defined but never used.",
+		},
+	},
+
+	create(context) {
+		const sourceCode = context.sourceCode;
+		let scopeInfo = null;
+
+		/**
+		 * Adds a scope info to the stack.
+		 * @param {ASTNode} node A node to add. This is a LabeledStatement.
+		 * @returns {void}
+		 */
+		function enterLabeledScope(node) {
+			scopeInfo = {
+				label: node.label.name,
+				used: false,
+				upper: scopeInfo,
+			};
+		}
+
+		/**
+		 * Checks if a `LabeledStatement` node is fixable.
+		 * For a node to be fixable, there must be no comments between the label and the body.
+		 * Furthermore, is must be possible to remove the label without turning the body statement into a
+		 * directive after other fixes are applied.
+		 * @param {ASTNode} node The node to evaluate.
+		 * @returns {boolean} Whether or not the node is fixable.
+		 */
+		function isFixable(node) {
+			/*
+			 * Only perform a fix if there are no comments between the label and the body. This will be the case
+			 * when there is exactly one token/comment (the ":") between the label and the body.
+			 */
+			if (
+				sourceCode.getTokenAfter(node.label, {
+					includeComments: true,
+				}) !==
+				sourceCode.getTokenBefore(node.body, { includeComments: true })
+			) {
+				return false;
+			}
+
+			// Looking for the node's deepest ancestor which is not a `LabeledStatement`.
+			let ancestor = node.parent;
+
+			while (ancestor.type === "LabeledStatement") {
+				ancestor = ancestor.parent;
+			}
+
+			if (
+				ancestor.type === "Program" ||
+				(ancestor.type === "BlockStatement" &&
+					astUtils.isFunction(ancestor.parent))
+			) {
+				const { body } = node;
+
+				if (
+					body.type === "ExpressionStatement" &&
+					((body.expression.type === "Literal" &&
+						typeof body.expression.value === "string") ||
+						astUtils.isStaticTemplateLiteral(body.expression))
+				) {
+					return false; // potential directive
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * Removes the top of the stack.
+		 * At the same time, this reports the label if it's never used.
+		 * @param {ASTNode} node A node to report. This is a LabeledStatement.
+		 * @returns {void}
+		 */
+		function exitLabeledScope(node) {
+			if (!scopeInfo.used) {
+				context.report({
+					node: node.label,
+					messageId: "unused",
+					data: node.label,
+					fix: isFixable(node)
+						? fixer =>
+								fixer.removeRange([
+									node.range[0],
+									node.body.range[0],
+								])
+						: null,
+				});
+			}
+
+			scopeInfo = scopeInfo.upper;
+		}
+
+		/**
+		 * Marks the label of a given node as used.
+		 * @param {ASTNode} node A node to mark. This is a BreakStatement or
+		 *      ContinueStatement.
+		 * @returns {void}
+		 */
+		function markAsUsed(node) {
+			if (!node.label) {
+				return;
+			}
+
+			const label = node.label.name;
+			let info = scopeInfo;
+
+			while (info) {
+				if (info.label === label) {
+					info.used = true;
+					break;
+				}
+				info = info.upper;
+			}
+		}
+
+		return {
+			LabeledStatement: enterLabeledScope,
+			"LabeledStatement:exit": exitLabeledScope,
+			BreakStatement: markAsUsed,
+			ContinueStatement: markAsUsed,
+		};
+	},
+};