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.d.ts

@@ -0,0 +1,8 @@
+declare const supportedLocales: readonly ["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"];
+declare const placeholderFields: readonly ["year", "month", "day"];
+type SupportedLocale = (typeof supportedLocales)[number];
+type PlaceholderField = (typeof placeholderFields)[number];
+export type PlaceholderMap = Record<SupportedLocale, Record<PlaceholderField, string>>;
+type Field = "era" | "year" | "month" | "day" | "hour" | "minute" | "second" | "dayPeriod";
+export declare function getPlaceholder(field: Field, value: string, locale: SupportedLocale | (string & {})): string;
+export {};