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/spaced-html-comment.js

@@ -0,0 +1,82 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const utils_1 = require("../utils");
+exports.default = (0, utils_1.createRule)('spaced-html-comment', {
+    meta: {
+        docs: {
+            description: 'enforce consistent spacing after the `<!--` and before the `-->` in a HTML comment',
+            category: 'Stylistic Issues',
+            recommended: false,
+            conflictWithPrettier: false
+        },
+        fixable: 'whitespace',
+        schema: [
+            {
+                enum: ['always', 'never']
+            }
+        ],
+        messages: {
+            expectedSpaceBefore: "Expected space or tab before '-->' in comment.",
+            expectedSpaceAfter: "Expected space or tab after '<!--' in comment.",
+            unexpectedSpaceBefore: "Unexpected space or tab before '-->' in comment.",
+            unexpectedSpaceAfter: "Unexpected space or tab after '<!--' in comment."
+        },
+        type: 'layout'
+    },
+    create(context) {
+        // Unless the first option is never, require a space
+        const requireSpace = context.options[0] !== 'never';
+        return {
+            SvelteHTMLComment(node) {
+                if (!node.value.trim()) {
+                    return;
+                }
+                if (requireSpace) {
+                    if (/^\S/u.test(node.value)) {
+                        context.report({
+                            node,
+                            messageId: 'expectedSpaceAfter',
+                            fix(fixer) {
+                                return fixer.insertTextBeforeRange([node.range[0] + 4, node.range[1]], ' ');
+                            }
+                        });
+                    }
+                    if (/\S$/u.test(node.value)) {
+                        context.report({
+                            node,
+                            messageId: 'expectedSpaceBefore',
+                            fix(fixer) {
+                                return fixer.insertTextAfterRange([node.range[0], node.range[1] - 3], ' ');
+                            }
+                        });
+                    }
+                }
+                else {
+                    const beginSpaces = /^[^\S\n\r]/u.exec(node.value)?.[0];
+                    if (beginSpaces) {
+                        context.report({
+                            node,
+                            messageId: 'unexpectedSpaceAfter',
+                            fix(fixer) {
+                                return fixer.removeRange([
+                                    node.range[0] + 4,
+                                    node.range[0] + 4 + beginSpaces.length
+                                ]);
+                            }
+                        });
+                    }
+                    const endSpaces = /(?<=\S)[^\S\n\r]$/u.exec(node.value)?.[0];
+                    if (endSpaces) {
+                        context.report({
+                            node,
+                            messageId: 'unexpectedSpaceBefore',
+                            fix(fixer) {
+                                return fixer.removeRange([node.range[1] - 3 - endSpaces.length, node.range[1] - 3]);
+                            }
+                        });
+                    }
+                }
+            }
+        };
+    }
+});