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/attrs.d.ts

@@ -0,0 +1,33 @@
+export declare function boolToStr(condition: boolean): "true" | "false";
+export declare function boolToStrTrueOrUndef(condition: boolean): "true" | undefined;
+export declare function boolToEmptyStrOrUndef(condition: boolean): "" | undefined;
+export declare function boolToTrueOrUndef(condition: boolean): true | undefined;
+export declare function getDataOpenClosed(condition: boolean): "open" | "closed";
+export declare function getDataChecked(condition: boolean): "checked" | "unchecked";
+export type TransitionState = "starting" | "ending" | "idle" | undefined;
+export declare function getDataTransitionAttrs(state: TransitionState): {
+    "data-starting-style"?: "";
+    "data-ending-style"?: "";
+};
+export declare function getAriaChecked(checked: boolean, indeterminate: boolean): "true" | "false" | "mixed";
+export type BitsAttrsConfig<T extends readonly string[]> = {
+    component: string;
+    parts: T;
+    getVariant?: () => string | null;
+};
+export type CreateBitsAttrsReturn<T extends readonly string[]> = {
+    [K in T[number]]: string;
+} & {
+    selector: (part: T[number]) => string;
+    getAttr: (part: T[number], variant?: string) => string;
+};
+export declare class BitsAttrs<T extends readonly string[]> {
+    #private;
+    attrs: Record<T[number], string>;
+    constructor(config: BitsAttrsConfig<T>);
+    getAttr(part: T[number], variantOverride?: string): string;
+    selector(part: T[number], variantOverride?: string): string;
+}
+export declare function createBitsAttrs<const T extends readonly string[]>(config: Omit<BitsAttrsConfig<T>, "parts"> & {
+    parts: T;
+}): CreateBitsAttrsReturn<T>;