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/shared/index.d.ts

@@ -0,0 +1,38 @@
+import type * as CSS from "csstype";
+export { REGEXP_ONLY_DIGITS, REGEXP_ONLY_CHARS, REGEXP_ONLY_DIGITS_AND_CHARS, } from "../bits/pin-input/pin-input.svelte.js";
+export type Selected<Value> = {
+    value: Value;
+    label?: string;
+};
+export type SegmentPart = "month" | "day" | "year" | "hour" | "minute" | "second" | "dayPeriod" | "timeZoneName" | "literal";
+export type FocusTarget = string | HTMLElement | SVGElement | null;
+export type FocusProp = FocusTarget | ((defaultEl?: HTMLElement | null) => FocusTarget);
+export type StyleProperties = CSS.Properties & {
+    [str: `--${string}`]: any;
+};
+export type Orientation = "horizontal" | "vertical";
+export type Direction = "ltr" | "rtl";
+/**
+ * Controls positioning of the slider thumb.
+ *
+ * - `exact`: The thumb is centered exactly at the value of the slider.
+ * - `contain`: The thumb is centered exactly at the value of the slider, but will be contained within the slider track at the ends.
+ */
+export type SliderThumbPositioning = "exact" | "contain";
+export type WithoutChildrenOrChild<T> = WithoutChildren<WithoutChild<T>>;
+export type WithoutChildren<T> = T extends {
+    children?: any;
+} ? Omit<T, "children"> : T;
+export type WithoutChild<T> = T extends {
+    child?: any;
+} ? Omit<T, "child"> : T;
+export type WithElementRef<T, U extends HTMLElement = HTMLElement> = T & {
+    ref?: U | null;
+};
+export type { EditableSegmentPart, EditableTimeSegmentPart } from "./date/types.js";
+export type { Month, DateMatcher, DateOnInvalid, DateRangeValidator, DateValidator, DateRange, TimeValue, TimeSegmentPart, TimeRange, TimeValidator, TimeRangeValidator, TimeOnInvalid, } from "./date/types.js";
+export type { WithChild, Without, WithChildren } from "../internal/types.js";
+export { mergeProps } from "svelte-toolbelt";
+export { useId } from "../internal/use-id.js";
+export * from "./attributes.js";
+export * from "./types.js";