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/use-arrow-navigation.d.ts

@@ -0,0 +1,62 @@
+import type { Direction } from "../shared/index.js";
+type ArrowKeyOptions = "horizontal" | "vertical" | "both";
+interface ArrowNavigationOptions {
+    /**
+     * The arrow key options to allow navigation
+     *
+     * @defaultValue "both"
+     */
+    arrowKeyOptions?: ArrowKeyOptions;
+    /**
+     * The selector to find the collection items in the parent element.
+     */
+    candidateSelector: string;
+    /**
+     * The parent element where contains all the collection items, this will collect every item to be used when nav
+     * It will be ignored if attributeName is provided
+     *
+     * @defaultValue []
+     */
+    itemsArray?: HTMLElement[];
+    /**
+     * Allow loop navigation. If false, it will stop at the first and last element
+     *
+     * @defaultValue true
+     */
+    loop?: boolean;
+    /**
+     * The orientation of the collection
+     *
+     * @defaultValue "ltr"
+     */
+    dir?: Direction;
+    /**
+     * Prevent the scroll when navigating. This happens when the direction of the
+     * key matches the scroll direction of any ancestor scrollable elements.
+     *
+     * @defaultValue true
+     */
+    preventScroll?: boolean;
+    /**
+     * By default all currentElement would trigger navigation. If `true`, currentElement nodeName in the ignore list will return null
+     *
+     * @defaultValue false
+     */
+    enableIgnoredElement?: boolean;
+    /**
+     * Focus the element after navigation
+     *
+     * @defaultValue false
+     */
+    focus?: boolean;
+}
+/**
+ *
+ * @param e               Keyboard event
+ * @param currentElement  Event initiator element or any element that wants to handle the navigation
+ * @param parentElement   Parent element where contains all the collection items, this will collect every item to be used when nav
+ * @param options         further options
+ * @returns               the navigated html element or null if none
+ */
+export declare function useArrowNavigation(e: KeyboardEvent, currentElement: HTMLElement, parentElement: HTMLElement | undefined, options: ArrowNavigationOptions): HTMLElement | null;
+export {};