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/bits-ui/dist/internal/date-time/placeholders.js

@@ -0,0 +1,129 @@
+// prettier-ignore
+const supportedLocales = [
+    'ach', 'af', 'am', 'an', 'ar', 'ast', 'az', 'be', 'bg', 'bn', 'br', 'bs',
+    'ca', 'cak', 'ckb', 'cs', 'cy', 'da', 'de', 'dsb', 'el', 'en', 'eo', 'es',
+    'et', 'eu', 'fa', 'ff', 'fi', 'fr', 'fy', 'ga', 'gd', 'gl', 'he', 'hr',
+    'hsb', 'hu', 'ia', 'id', 'it', 'ja', 'ka', 'kk', 'kn', 'ko', 'lb', 'lo',
+    'lt', 'lv', 'meh', 'ml', 'ms', 'nl', 'nn', 'no', 'oc', 'pl', 'pt', 'rm',
+    'ro', 'ru', 'sc', 'scn', 'sk', 'sl', 'sr', 'sv', 'szl', 'tg', 'th', 'tr',
+    'uk', 'zh-CN', 'zh-TW',
+];
+const placeholderFields = ["year", "month", "day"];
+const placeholders = {
+    ach: { year: "mwaka", month: "dwe", day: "nino" },
+    af: { year: "jjjj", month: "mm", day: "dd" },
+    am: { year: "ዓዓዓዓ", month: "ሚሜ", day: "ቀቀ" },
+    an: { year: "aaaa", month: "mm", day: "dd" },
+    ar: { year: "سنة", month: "شهر", day: "يوم" },
+    ast: { year: "aaaa", month: "mm", day: "dd" },
+    az: { year: "iiii", month: "aa", day: "gg" },
+    be: { year: "гггг", month: "мм", day: "дд" },
+    bg: { year: "гггг", month: "мм", day: "дд" },
+    bn: { year: "yyyy", month: "মিমি", day: "dd" },
+    br: { year: "bbbb", month: "mm", day: "dd" },
+    bs: { year: "gggg", month: "mm", day: "dd" },
+    ca: { year: "aaaa", month: "mm", day: "dd" },
+    cak: { year: "jjjj", month: "ii", day: "q'q'" },
+    ckb: { year: "ساڵ", month: "مانگ", day: "ڕۆژ" },
+    cs: { year: "rrrr", month: "mm", day: "dd" },
+    cy: { year: "bbbb", month: "mm", day: "dd" },
+    da: { year: "åååå", month: "mm", day: "dd" },
+    de: { year: "jjjj", month: "mm", day: "tt" },
+    dsb: { year: "llll", month: "mm", day: "źź" },
+    el: { year: "εεεε", month: "μμ", day: "ηη" },
+    en: { year: "yyyy", month: "mm", day: "dd" },
+    eo: { year: "jjjj", month: "mm", day: "tt" },
+    es: { year: "aaaa", month: "mm", day: "dd" },
+    et: { year: "aaaa", month: "kk", day: "pp" },
+    eu: { year: "uuuu", month: "hh", day: "ee" },
+    fa: { year: "سال", month: "ماه", day: "روز" },
+    ff: { year: "hhhh", month: "ll", day: "ññ" },
+    fi: { year: "vvvv", month: "kk", day: "pp" },
+    fr: { year: "aaaa", month: "mm", day: "jj" },
+    fy: { year: "jjjj", month: "mm", day: "dd" },
+    ga: { year: "bbbb", month: "mm", day: "ll" },
+    gd: { year: "bbbb", month: "mm", day: "ll" },
+    gl: { year: "aaaa", month: "mm", day: "dd" },
+    he: { year: "שנה", month: "חודש", day: "יום" },
+    hr: { year: "gggg", month: "mm", day: "dd" },
+    hsb: { year: "llll", month: "mm", day: "dd" },
+    hu: { year: "éééé", month: "hh", day: "nn" },
+    ia: { year: "aaaa", month: "mm", day: "dd" },
+    id: { year: "tttt", month: "bb", day: "hh" },
+    it: { year: "aaaa", month: "mm", day: "gg" },
+    ja: { year: " 年 ", month: "月", day: "日" },
+    ka: { year: "წწწწ", month: "თთ", day: "რრ" },
+    kk: { year: "жжжж", month: "аа", day: "кк" },
+    kn: { year: "ವವವವ", month: "ಮಿಮೀ", day: "ದಿದಿ" },
+    ko: { year: "연도", month: "월", day: "일" },
+    lb: { year: "jjjj", month: "mm", day: "dd" },
+    lo: { year: "ປປປປ", month: "ດດ", day: "ວວ" },
+    lt: { year: "mmmm", month: "mm", day: "dd" },
+    lv: { year: "gggg", month: "mm", day: "dd" },
+    meh: { year: "aaaa", month: "mm", day: "dd" },
+    ml: { year: "വർഷം", month: "മാസം", day: "തീയതി" },
+    ms: { year: "tttt", month: "mm", day: "hh" },
+    nl: { year: "jjjj", month: "mm", day: "dd" },
+    nn: { year: "åååå", month: "mm", day: "dd" },
+    no: { year: "åååå", month: "mm", day: "dd" },
+    oc: { year: "aaaa", month: "mm", day: "jj" },
+    pl: { year: "rrrr", month: "mm", day: "dd" },
+    pt: { year: "aaaa", month: "mm", day: "dd" },
+    rm: { year: "oooo", month: "mm", day: "dd" },
+    ro: { year: "aaaa", month: "ll", day: "zz" },
+    ru: { year: "гггг", month: "мм", day: "дд" },
+    sc: { year: "aaaa", month: "mm", day: "dd" },
+    scn: { year: "aaaa", month: "mm", day: "jj" },
+    sk: { year: "rrrr", month: "mm", day: "dd" },
+    sl: { year: "llll", month: "mm", day: "dd" },
+    sr: { year: "гггг", month: "мм", day: "дд" },
+    sv: { year: "åååå", month: "mm", day: "dd" },
+    szl: { year: "rrrr", month: "mm", day: "dd" },
+    tg: { year: "сссс", month: "мм", day: "рр" },
+    th: { year: "ปปปป", month: "ดด", day: "วว" },
+    tr: { year: "yyyy", month: "aa", day: "gg" },
+    uk: { year: "рррр", month: "мм", day: "дд" },
+    "zh-CN": { year: "年", month: "月", day: "日" },
+    "zh-TW": { year: "年", month: "月", day: "日" },
+};
+function getPlaceholderObj(locale) {
+    if (!isSupportedLocale(locale)) {
+        const localeLanguage = getLocaleLanguage(locale);
+        if (!isSupportedLocale(localeLanguage)) {
+            return placeholders.en;
+        }
+        else {
+            return placeholders[localeLanguage];
+        }
+    }
+    else {
+        return placeholders[locale];
+    }
+}
+export function getPlaceholder(field, value, locale) {
+    if (isPlaceholderField(field))
+        return getPlaceholderObj(locale)[field];
+    if (isDefaultField(field))
+        return value;
+    if (isTimeField(field))
+        return "––";
+    return "";
+}
+function isSupportedLocale(locale) {
+    return supportedLocales.includes(locale);
+}
+function isPlaceholderField(field) {
+    return placeholderFields.includes(field);
+}
+function isTimeField(field) {
+    return field === "hour" || field === "minute" || field === "second";
+}
+function isDefaultField(field) {
+    return field === "era" || field === "dayPeriod";
+}
+function getLocaleLanguage(locale) {
+    if (Intl.Locale) {
+        return new Intl.Locale(locale).language;
+    }
+    return locale.split("-")[0];
+}