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/class-methods-use-this.js

@@ -0,0 +1,250 @@
+/**
+ * @fileoverview Rule to enforce that all class methods use 'this'.
+ * @author Patrick Williams
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("./utils/ast-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		dialects: ["javascript", "typescript"],
+		language: "javascript",
+		type: "suggestion",
+
+		defaultOptions: [
+			{
+				enforceForClassFields: true,
+				exceptMethods: [],
+				ignoreOverrideMethods: false,
+			},
+		],
+
+		docs: {
+			description: "Enforce that class methods utilize `this`",
+			recommended: false,
+			url: "https://eslint.org/docs/latest/rules/class-methods-use-this",
+		},
+
+		schema: [
+			{
+				type: "object",
+				properties: {
+					exceptMethods: {
+						type: "array",
+						items: {
+							type: "string",
+						},
+					},
+					enforceForClassFields: {
+						type: "boolean",
+					},
+					ignoreOverrideMethods: {
+						type: "boolean",
+					},
+					ignoreClassesWithImplements: {
+						enum: ["all", "public-fields"],
+					},
+				},
+				additionalProperties: false,
+			},
+		],
+
+		messages: {
+			missingThis: "Expected 'this' to be used by class {{name}}.",
+		},
+	},
+	create(context) {
+		const [options] = context.options;
+		const {
+			enforceForClassFields,
+			ignoreOverrideMethods,
+			ignoreClassesWithImplements,
+		} = options;
+		const exceptMethods = new Set(options.exceptMethods);
+
+		const stack = [];
+
+		/**
+		 * Push `this` used flag initialized with `false` onto the stack.
+		 * @returns {void}
+		 */
+		function pushContext() {
+			stack.push(false);
+		}
+
+		/**
+		 * Pop `this` used flag from the stack.
+		 * @returns {boolean | undefined} `this` used flag
+		 */
+		function popContext() {
+			return stack.pop();
+		}
+
+		/**
+		 * Initializes the current context to false and pushes it onto the stack.
+		 * These booleans represent whether 'this' has been used in the context.
+		 * @returns {void}
+		 * @private
+		 */
+		function enterFunction() {
+			pushContext();
+		}
+
+		/**
+		 * Check if the node is an instance method
+		 * @param {ASTNode} node node to check
+		 * @returns {boolean} True if its an instance method
+		 * @private
+		 */
+		function isInstanceMethod(node) {
+			switch (node.type) {
+				case "MethodDefinition":
+					return !node.static && node.kind !== "constructor";
+				case "AccessorProperty":
+				case "PropertyDefinition":
+					return !node.static && enforceForClassFields;
+				default:
+					return false;
+			}
+		}
+
+		/**
+		 * Check if the node's parent class implements any interfaces
+		 * @param {ASTNode} node node to check
+		 * @returns {boolean} True if parent class implements interfaces
+		 * @private
+		 */
+		function hasImplements(node) {
+			const classNode = node.parent.parent;
+			return (
+				classNode?.type === "ClassDeclaration" &&
+				classNode.implements?.length > 0
+			);
+		}
+
+		/**
+		 * Check if the node is an instance method not excluded by config
+		 * @param {ASTNode} node node to check
+		 * @returns {boolean} True if it is an instance method, and not excluded by config
+		 * @private
+		 */
+		function isIncludedInstanceMethod(node) {
+			if (isInstanceMethod(node)) {
+				if (node.computed) {
+					return true;
+				}
+
+				if (ignoreOverrideMethods && node.override) {
+					return false;
+				}
+
+				if (ignoreClassesWithImplements) {
+					const implementsInterfaces = hasImplements(node);
+					if (implementsInterfaces) {
+						if (
+							ignoreClassesWithImplements === "all" ||
+							(ignoreClassesWithImplements === "public-fields" &&
+								node.key.type !== "PrivateIdentifier" &&
+								(!node.accessibility ||
+									node.accessibility === "public"))
+						) {
+							return false;
+						}
+					}
+				}
+
+				const hashIfNeeded =
+					node.key.type === "PrivateIdentifier" ? "#" : "";
+				const name =
+					node.key.type === "Literal"
+						? astUtils.getStaticStringValue(node.key)
+						: node.key.name || "";
+
+				return !exceptMethods.has(hashIfNeeded + name);
+			}
+			return false;
+		}
+
+		/**
+		 * Checks if we are leaving a function that is a method, and reports if 'this' has not been used.
+		 * Static methods and the constructor are exempt.
+		 * Then pops the context off the stack.
+		 * @param {ASTNode} node A function node that was entered.
+		 * @returns {void}
+		 * @private
+		 */
+		function exitFunction(node) {
+			const methodUsesThis = popContext();
+
+			if (isIncludedInstanceMethod(node.parent) && !methodUsesThis) {
+				context.report({
+					node,
+					loc: astUtils.getFunctionHeadLoc(node, context.sourceCode),
+					messageId: "missingThis",
+					data: {
+						name: astUtils.getFunctionNameWithKind(node),
+					},
+				});
+			}
+		}
+
+		/**
+		 * Mark the current context as having used 'this'.
+		 * @returns {void}
+		 * @private
+		 */
+		function markThisUsed() {
+			if (stack.length) {
+				stack[stack.length - 1] = true;
+			}
+		}
+
+		return {
+			FunctionDeclaration: enterFunction,
+			"FunctionDeclaration:exit": exitFunction,
+			FunctionExpression: enterFunction,
+			"FunctionExpression:exit": exitFunction,
+
+			/*
+			 * Class field value are implicit functions.
+			 */
+			"AccessorProperty > *.key:exit": pushContext,
+			"AccessorProperty:exit": popContext,
+			"PropertyDefinition > *.key:exit": pushContext,
+			"PropertyDefinition:exit": popContext,
+
+			/*
+			 * Class static blocks are implicit functions. They aren't required to use `this`,
+			 * but we have to push context so that it captures any use of `this` in the static block
+			 * separately from enclosing contexts, because static blocks have their own `this` and it
+			 * shouldn't count as used `this` in enclosing contexts.
+			 */
+			StaticBlock: pushContext,
+			"StaticBlock:exit": popContext,
+
+			ThisExpression: markThisUsed,
+			Super: markThisUsed,
+			...(enforceForClassFields && {
+				"AccessorProperty > ArrowFunctionExpression.value":
+					enterFunction,
+				"AccessorProperty > ArrowFunctionExpression.value:exit":
+					exitFunction,
+				"PropertyDefinition > ArrowFunctionExpression.value":
+					enterFunction,
+				"PropertyDefinition > ArrowFunctionExpression.value:exit":
+					exitFunction,
+			}),
+		};
+	},
+};