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-goto-without-base.js

@@ -0,0 +1,108 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const utils_1 = require("../utils");
+const eslint_utils_1 = require("@eslint-community/eslint-utils");
+const compat_1 = require("../utils/compat");
+const ast_utils_1 = require("../utils/ast-utils");
+exports.default = (0, utils_1.createRule)('no-goto-without-base', {
+    meta: {
+        docs: {
+            description: 'disallow using goto() without the base path',
+            category: 'SvelteKit',
+            recommended: false
+        },
+        schema: [],
+        messages: {
+            isNotPrefixedWithBasePath: "Found a goto() call with a url that isn't prefixed with the base path."
+        },
+        type: 'suggestion'
+    },
+    create(context) {
+        return {
+            Program() {
+                const referenceTracker = new eslint_utils_1.ReferenceTracker((0, compat_1.getSourceCode)(context).scopeManager.globalScope);
+                const basePathNames = extractBasePathReferences(referenceTracker, context);
+                for (const gotoCall of extractGotoReferences(referenceTracker)) {
+                    if (gotoCall.arguments.length < 1) {
+                        continue;
+                    }
+                    const path = gotoCall.arguments[0];
+                    switch (path.type) {
+                        case 'BinaryExpression':
+                            checkBinaryExpression(context, path, basePathNames);
+                            break;
+                        case 'Literal':
+                            checkLiteral(context, path);
+                            break;
+                        case 'TemplateLiteral':
+                            checkTemplateLiteral(context, path, basePathNames);
+                            break;
+                        default:
+                            context.report({ loc: path.loc, messageId: 'isNotPrefixedWithBasePath' });
+                    }
+                }
+            }
+        };
+    }
+});
+function checkBinaryExpression(context, path, basePathNames) {
+    if (path.left.type !== 'Identifier' || !basePathNames.has(path.left)) {
+        context.report({ loc: path.loc, messageId: 'isNotPrefixedWithBasePath' });
+    }
+}
+function checkTemplateLiteral(context, path, basePathNames) {
+    const startingIdentifier = extractStartingIdentifier(path);
+    if (startingIdentifier === undefined || !basePathNames.has(startingIdentifier)) {
+        context.report({ loc: path.loc, messageId: 'isNotPrefixedWithBasePath' });
+    }
+}
+function checkLiteral(context, path) {
+    const absolutePathRegex = /^(?:[+a-z]+:)?\/\//i;
+    if (!absolutePathRegex.test(path.value?.toString() ?? '')) {
+        context.report({ loc: path.loc, messageId: 'isNotPrefixedWithBasePath' });
+    }
+}
+function extractStartingIdentifier(templateLiteral) {
+    const literalParts = [...templateLiteral.expressions, ...templateLiteral.quasis].sort((a, b) => a.range[0] < b.range[0] ? -1 : 1);
+    for (const part of literalParts) {
+        if (part.type === 'TemplateElement' && part.value.raw === '') {
+            // Skip empty quasi in the begining
+            continue;
+        }
+        if (part.type === 'Identifier') {
+            return part;
+        }
+        return undefined;
+    }
+    return undefined;
+}
+function extractGotoReferences(referenceTracker) {
+    return Array.from(referenceTracker.iterateEsmReferences({
+        '$app/navigation': {
+            [eslint_utils_1.ReferenceTracker.ESM]: true,
+            goto: {
+                [eslint_utils_1.ReferenceTracker.CALL]: true
+            }
+        }
+    }), ({ node }) => node);
+}
+function extractBasePathReferences(referenceTracker, context) {
+    const set = new Set();
+    for (const { node } of referenceTracker.iterateEsmReferences({
+        '$app/paths': {
+            [eslint_utils_1.ReferenceTracker.ESM]: true,
+            base: {
+                [eslint_utils_1.ReferenceTracker.READ]: true
+            }
+        }
+    })) {
+        const variable = (0, ast_utils_1.findVariable)(context, node.local);
+        if (!variable)
+            continue;
+        for (const reference of variable.references) {
+            if (reference.identifier.type === 'Identifier')
+                set.add(reference.identifier);
+        }
+    }
+    return set;
+}