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-plugin-svelte/lib/rules/no-dom-manipulating.js

@@ -0,0 +1,118 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const utils_1 = require("../utils");
+const ast_utils_1 = require("../utils/ast-utils");
+const eslint_utils_1 = require("@eslint-community/eslint-utils");
+const DOM_MANIPULATING_METHODS = new Set([
+    'appendChild', // https://developer.mozilla.org/en-US/docs/Web/API/Node/appendChild
+    'insertBefore', // https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore
+    'normalize', // https://developer.mozilla.org/en-US/docs/Web/API/Node/normalize
+    'removeChild', // https://developer.mozilla.org/en-US/docs/Web/API/Node/removeChild
+    'replaceChild', // https://developer.mozilla.org/en-US/docs/Web/API/Node/replaceChild
+    'after', // https://developer.mozilla.org/en-US/docs/Web/API/Element/after
+    'append', // https://developer.mozilla.org/en-US/docs/Web/API/Element/append
+    'before', // https://developer.mozilla.org/en-US/docs/Web/API/Element/before
+    'insertAdjacentElement', // https://developer.mozilla.org/en-US/docs/Web/API/Element/insertAdjacentElement
+    'insertAdjacentHTML', // https://developer.mozilla.org/en-US/docs/Web/API/Element/insertAdjacentHTML
+    'insertAdjacentText', // https://developer.mozilla.org/en-US/docs/Web/API/Element/insertAdjacentText
+    'prepend', // https://developer.mozilla.org/en-US/docs/Web/API/Element/prepend
+    'remove', // https://developer.mozilla.org/en-US/docs/Web/API/Element/remove
+    'replaceChildren', // https://developer.mozilla.org/en-US/docs/Web/API/Element/replaceChildren
+    'replaceWith' // https://developer.mozilla.org/en-US/docs/Web/API/Element/replaceWith
+]);
+const DOM_MANIPULATING_PROPERTIES = new Set([
+    'textContent', // https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent
+    'innerHTML', // https://developer.mozilla.org/en-US/docs/Web/API/Element/innerHTML
+    'outerHTML', // https://developer.mozilla.org/en-US/docs/Web/API/Element/outerHTML
+    'innerText', // https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/innerText
+    'outerText' // https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/outerText
+]);
+exports.default = (0, utils_1.createRule)('no-dom-manipulating', {
+    meta: {
+        docs: {
+            description: 'disallow DOM manipulating',
+            category: 'Possible Errors',
+            recommended: false
+        },
+        schema: [],
+        messages: {
+            disallowManipulateDOM: "Don't manipulate the DOM directly. The Svelte runtime can get confused if there is a difference between the actual DOM and the DOM expected by the Svelte runtime."
+        },
+        type: 'problem'
+    },
+    create(context) {
+        const domVariables = new Set();
+        /**
+         * Verify DOM variable identifier node
+         */
+        function verifyIdentifier(node) {
+            const member = node.parent;
+            if (member?.type !== 'MemberExpression' || member.object !== node) {
+                return;
+            }
+            const name = (0, eslint_utils_1.getPropertyName)(member);
+            if (!name) {
+                return;
+            }
+            let target = member;
+            let parent = target.parent;
+            while (parent?.type === 'ChainExpression') {
+                target = parent;
+                parent = parent.parent;
+            }
+            if (!parent) {
+                return;
+            }
+            if (parent.type === 'CallExpression') {
+                if (parent.callee !== target || !DOM_MANIPULATING_METHODS.has(name)) {
+                    return;
+                }
+            }
+            else if (parent.type === 'AssignmentExpression') {
+                if (parent.left !== target || !DOM_MANIPULATING_PROPERTIES.has(name)) {
+                    return;
+                }
+            }
+            else {
+                return;
+            }
+            context.report({
+                node: member,
+                messageId: 'disallowManipulateDOM'
+            });
+        }
+        return {
+            "SvelteDirective[kind='Binding']"(node) {
+                if (node.key.name.name !== 'this' ||
+                    !node.expression ||
+                    node.expression.type !== 'Identifier') {
+                    // not bind:this={id}
+                    return;
+                }
+                const element = node.parent.parent;
+                if (element.type !== 'SvelteElement' || !isHTMLElement(element)) {
+                    // not HTML element
+                    return;
+                }
+                const variable = (0, ast_utils_1.findVariable)(context, node.expression);
+                if (!variable || (variable.scope.type !== 'module' && variable.scope.type !== 'global')) {
+                    return;
+                }
+                domVariables.add(variable);
+            },
+            'Program:exit'() {
+                for (const variable of domVariables) {
+                    for (const reference of variable.references) {
+                        verifyIdentifier(reference.identifier);
+                    }
+                }
+            }
+        };
+        /**
+         * Checks whether the given node is a HTML element or not.
+         */
+        function isHTMLElement(node) {
+            return (node.kind === 'html' || (node.kind === 'special' && (0, ast_utils_1.getNodeName)(node) === 'svelte:element'));
+        }
+    }
+});