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/entities/dist/esm/escape.js

@@ -0,0 +1,117 @@
+export const xmlReplacer = /["$&'<>\u0080-\uFFFF]/g;
+const xmlCodeMap = new Map([
+    [34, "&quot;"],
+    [38, "&amp;"],
+    [39, "&apos;"],
+    [60, "&lt;"],
+    [62, "&gt;"],
+]);
+// For compatibility with node < 4, we wrap `codePointAt`
+export const getCodePoint = 
+// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+String.prototype.codePointAt == null
+    ? (c, index) => (c.charCodeAt(index) & 64512) === 55296
+        ? (c.charCodeAt(index) - 55296) * 1024 +
+            c.charCodeAt(index + 1) -
+            56320 +
+            65536
+        : c.charCodeAt(index)
+    : // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+        (input, index) => input.codePointAt(index);
+/**
+ * Encodes all non-ASCII characters, as well as characters not valid in XML
+ * documents using XML entities.
+ *
+ * If a character has no equivalent entity, a
+ * numeric hexadecimal reference (eg. `&#xfc;`) will be used.
+ */
+export function encodeXML(input) {
+    let returnValue = "";
+    let lastIndex = 0;
+    let match;
+    while ((match = xmlReplacer.exec(input)) !== null) {
+        const { index } = match;
+        const char = input.charCodeAt(index);
+        const next = xmlCodeMap.get(char);
+        if (next === undefined) {
+            returnValue += `${input.substring(lastIndex, index)}&#x${getCodePoint(input, index).toString(16)};`;
+            // Increase by 1 if we have a surrogate pair
+            lastIndex = xmlReplacer.lastIndex += Number((char & 64512) === 55296);
+        }
+        else {
+            returnValue += input.substring(lastIndex, index) + next;
+            lastIndex = index + 1;
+        }
+    }
+    return returnValue + input.substr(lastIndex);
+}
+/**
+ * Encodes all non-ASCII characters, as well as characters not valid in XML
+ * documents using numeric hexadecimal reference (eg. `&#xfc;`).
+ *
+ * Have a look at `escapeUTF8` if you want a more concise output at the expense
+ * of reduced transportability.
+ *
+ * @param data String to escape.
+ */
+export const escape = encodeXML;
+/**
+ * Creates a function that escapes all characters matched by the given regular
+ * expression using the given map of characters to escape to their entities.
+ *
+ * @param regex Regular expression to match characters to escape.
+ * @param map Map of characters to escape to their entities.
+ *
+ * @returns Function that escapes all characters matched by the given regular
+ * expression using the given map of characters to escape to their entities.
+ */
+function getEscaper(regex, map) {
+    return function escape(data) {
+        let match;
+        let lastIndex = 0;
+        let result = "";
+        while ((match = regex.exec(data))) {
+            if (lastIndex !== match.index) {
+                result += data.substring(lastIndex, match.index);
+            }
+            // We know that this character will be in the map.
+            result += map.get(match[0].charCodeAt(0));
+            // Every match will be of length 1
+            lastIndex = match.index + 1;
+        }
+        return result + data.substring(lastIndex);
+    };
+}
+/**
+ * Encodes all characters not valid in XML documents using XML entities.
+ *
+ * Note that the output will be character-set dependent.
+ *
+ * @param data String to escape.
+ */
+export const escapeUTF8 = /* #__PURE__ */ getEscaper(/["&'<>]/g, xmlCodeMap);
+/**
+ * Encodes all characters that have to be escaped in HTML attributes,
+ * following {@link https://html.spec.whatwg.org/multipage/parsing.html#escapingString}.
+ *
+ * @param data String to escape.
+ */
+export const escapeAttribute = 
+/* #__PURE__ */ getEscaper(/["&\u00A0]/g, new Map([
+    [34, "&quot;"],
+    [38, "&amp;"],
+    [160, "&nbsp;"],
+]));
+/**
+ * Encodes all characters that have to be escaped in HTML text,
+ * following {@link https://html.spec.whatwg.org/multipage/parsing.html#escapingString}.
+ *
+ * @param data String to escape.
+ */
+export const escapeText = /* #__PURE__ */ getEscaper(/[&<>\u00A0]/g, new Map([
+    [38, "&amp;"],
+    [60, "&lt;"],
+    [62, "&gt;"],
+    [160, "&nbsp;"],
+]));
+//# sourceMappingURL=escape.js.map