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-dynamic-slot-name.js

@@ -0,0 +1,81 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const utils_1 = require("../utils");
+const ast_utils_1 = require("../utils/ast-utils");
+const compat_1 = require("../utils/compat");
+exports.default = (0, utils_1.createRule)('no-dynamic-slot-name', {
+    meta: {
+        docs: {
+            description: 'disallow dynamic slot name',
+            category: 'Possible Errors',
+            recommended: true
+        },
+        fixable: 'code',
+        schema: [],
+        messages: {
+            unexpected: '`<slot>` name cannot be dynamic.',
+            requireValue: '`<slot>` name requires a value.'
+        },
+        type: 'problem'
+    },
+    create(context) {
+        const sourceCode = (0, compat_1.getSourceCode)(context);
+        return {
+            "SvelteElement[name.name='slot'] > SvelteStartTag.startTag > SvelteAttribute[key.name='name']"(node) {
+                if (node.value.length === 0) {
+                    context.report({
+                        node,
+                        messageId: 'requireValue'
+                    });
+                    return;
+                }
+                for (const vNode of node.value) {
+                    if (vNode.type === 'SvelteMustacheTag') {
+                        context.report({
+                            node: vNode,
+                            messageId: 'unexpected',
+                            fix(fixer) {
+                                const text = getStaticText(vNode.expression);
+                                if (text == null) {
+                                    return null;
+                                }
+                                if (node.value.length === 1) {
+                                    const range = (0, ast_utils_1.getAttributeValueQuoteAndRange)(node, sourceCode).range;
+                                    return fixer.replaceTextRange(range, `"${text}"`);
+                                }
+                                const range = vNode.range;
+                                return fixer.replaceTextRange(range, text);
+                            }
+                        });
+                    }
+                }
+            }
+        };
+        /**
+         * Get static text from given expression
+         */
+        function getStaticText(node) {
+            const expr = findRootExpression(node);
+            return (0, ast_utils_1.getStringIfConstant)(expr);
+        }
+        /** Find data expression */
+        function findRootExpression(node, already = new Set()) {
+            if (node.type !== 'Identifier' || already.has(node)) {
+                return node;
+            }
+            already.add(node);
+            const variable = (0, ast_utils_1.findVariable)(context, node);
+            if (!variable || variable.defs.length !== 1) {
+                return node;
+            }
+            const def = variable.defs[0];
+            if (def.type === 'Variable') {
+                if (def.parent.kind === 'const' && def.node.init) {
+                    const init = def.node.init;
+                    return findRootExpression(init, already);
+                }
+            }
+            return node;
+        }
+    }
+});