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/first-attribute-linebreak.js

@@ -0,0 +1,68 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const utils_1 = require("../utils");
+const compat_1 = require("../utils/compat");
+exports.default = (0, utils_1.createRule)('first-attribute-linebreak', {
+    meta: {
+        docs: {
+            description: 'enforce the location of first attribute',
+            category: 'Stylistic Issues',
+            recommended: false,
+            conflictWithPrettier: true
+        },
+        fixable: 'whitespace',
+        schema: [
+            {
+                type: 'object',
+                properties: {
+                    multiline: { enum: ['below', 'beside'] },
+                    singleline: { enum: ['below', 'beside'] }
+                },
+                additionalProperties: false
+            }
+        ],
+        messages: {
+            expected: 'Expected a linebreak before this attribute.',
+            unexpected: 'Expected no linebreak before this attribute.'
+        },
+        type: 'layout'
+    },
+    create(context) {
+        const multiline = context.options[0]?.multiline || 'below';
+        const singleline = context.options[0]?.singleline || 'beside';
+        const sourceCode = (0, compat_1.getSourceCode)(context);
+        /**
+         * Report attribute
+         */
+        function report(firstAttribute, location) {
+            context.report({
+                node: firstAttribute,
+                messageId: location === 'beside' ? 'unexpected' : 'expected',
+                fix(fixer) {
+                    const prevToken = sourceCode.getTokenBefore(firstAttribute, {
+                        includeComments: true
+                    });
+                    return fixer.replaceTextRange([prevToken.range[1], firstAttribute.range[0]], location === 'beside' ? ' ' : '\n');
+                }
+            });
+        }
+        return {
+            SvelteStartTag(node) {
+                const firstAttribute = node.attributes[0];
+                if (!firstAttribute)
+                    return;
+                const lastAttribute = node.attributes[node.attributes.length - 1];
+                const location = firstAttribute.loc.start.line === lastAttribute.loc.end.line ? singleline : multiline;
+                if (location === 'beside') {
+                    if (node.parent.name.loc.end.line === firstAttribute.loc.start.line) {
+                        return;
+                    }
+                }
+                else if (node.parent.name.loc.end.line < firstAttribute.loc.start.line) {
+                    return;
+                }
+                report(firstAttribute, location);
+            }
+        };
+    }
+});