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/bits/toggle-group/toggle-group.svelte.d.ts

@@ -0,0 +1,95 @@
+import { type WritableBox, type ReadableBoxedValues, type WritableBoxedValues } from "svelte-toolbelt";
+import type { Orientation } from "../../shared/index.js";
+import type { BitsKeyboardEvent, BitsMouseEvent, RefAttachment, WithRefOpts } from "../../internal/types.js";
+import { RovingFocusGroup } from "../../internal/roving-focus-group.js";
+export declare const toggleGroupAttrs: import("../../internal/attrs.js").CreateBitsAttrsReturn<readonly ["root", "item"]>;
+interface ToggleGroupBaseStateOpts extends WithRefOpts, ReadableBoxedValues<{
+    disabled: boolean;
+    rovingFocus: boolean;
+    loop: boolean;
+    orientation: Orientation;
+}> {
+}
+declare abstract class ToggleGroupBaseState {
+    readonly opts: ToggleGroupBaseStateOpts;
+    readonly rovingFocusGroup: RovingFocusGroup;
+    readonly attachment: RefAttachment;
+    constructor(opts: ToggleGroupBaseStateOpts);
+    readonly props: {
+        readonly id: string;
+        readonly role: "group";
+        readonly "data-orientation": Orientation;
+        readonly "data-disabled": "" | undefined;
+    };
+}
+interface ToggleGroupSingleStateOpts extends ToggleGroupBaseStateOpts, WritableBoxedValues<{
+    value: string;
+}> {
+}
+declare class ToggleGroupSingleState extends ToggleGroupBaseState {
+    readonly opts: ToggleGroupSingleStateOpts;
+    isMulti: boolean;
+    readonly anyPressed: boolean;
+    constructor(opts: ToggleGroupSingleStateOpts);
+    includesItem(item: string): boolean;
+    toggleItem(item: string, id: string): void;
+}
+interface ToggleGroupMultipleStateOpts extends ToggleGroupBaseStateOpts, WritableBoxedValues<{
+    value: string[];
+}> {
+}
+declare class ToggleGroupMultipleState extends ToggleGroupBaseState {
+    readonly opts: ToggleGroupMultipleStateOpts;
+    isMulti: boolean;
+    readonly anyPressed: boolean;
+    constructor(opts: ToggleGroupMultipleStateOpts);
+    includesItem(item: string): boolean;
+    toggleItem(item: string, id: string): void;
+}
+type ToggleGroup = ToggleGroupSingleState | ToggleGroupMultipleState;
+interface ToggleGroupRootOpts extends WithRefOpts, ReadableBoxedValues<{
+    disabled: boolean;
+    rovingFocus: boolean;
+    loop: boolean;
+    orientation: Orientation;
+}> {
+    type: "single" | "multiple";
+    value: WritableBox<string> | WritableBox<string[]>;
+}
+export declare class ToggleGroupRootState {
+    static create(opts: ToggleGroupRootOpts): ToggleGroup;
+}
+interface ToggleGroupItemStateOpts extends WithRefOpts, ReadableBoxedValues<{
+    value: string;
+    disabled: boolean;
+}> {
+}
+export declare class ToggleGroupItemState {
+    #private;
+    static create(opts: ToggleGroupItemStateOpts): ToggleGroupItemState;
+    readonly opts: ToggleGroupItemStateOpts;
+    readonly root: ToggleGroup;
+    readonly attachment: RefAttachment;
+    readonly isPressed: boolean;
+    constructor(opts: ToggleGroupItemStateOpts, root: ToggleGroup);
+    onclick(_: BitsMouseEvent): void;
+    onkeydown(e: BitsKeyboardEvent): void;
+    readonly snippetProps: {
+        pressed: boolean;
+    };
+    readonly props: {
+        readonly id: string;
+        readonly role: "radio" | undefined;
+        readonly tabindex: number;
+        readonly "data-orientation": Orientation;
+        readonly "data-disabled": "" | undefined;
+        readonly "data-state": "off" | "on";
+        readonly "data-value": string;
+        readonly "aria-pressed": "true" | "false" | undefined;
+        readonly "aria-checked": "true" | "false" | "mixed" | undefined;
+        readonly disabled: true | undefined;
+        readonly onclick: (_: BitsMouseEvent) => void;
+        readonly onkeydown: (e: BitsKeyboardEvent) => void;
+    };
+}
+export {};