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/switch/components/switch-input.svelte

@@ -0,0 +1,10 @@
+<script lang="ts">
+	import HiddenInput from "../../utilities/hidden-input.svelte";
+	import { SwitchInputState } from "../switch.svelte.js";
+
+	const inputState = SwitchInputState.create();
+</script>
+
+{#if inputState.shouldRender}
+	<HiddenInput {...inputState.props} />
+{/if}

web/node_modules/bits-ui/dist/bits/switch/components/switch-input.svelte.d.ts

@@ -0,0 +1,18 @@
+interface $$__sveltets_2_IsomorphicComponent<Props extends Record<string, any> = any, Events extends Record<string, any> = any, Slots extends Record<string, any> = any, Exports = {}, Bindings = string> {
+    new (options: import('svelte').ComponentConstructorOptions<Props>): import('svelte').SvelteComponent<Props, Events, Slots> & {
+        $$bindings?: Bindings;
+    } & Exports;
+    (internal: unknown, props: {
+        $$events?: Events;
+        $$slots?: Slots;
+    }): Exports & {
+        $set?: any;
+        $on?: any;
+    };
+    z_$$bindings?: Bindings;
+}
+declare const SwitchInput: $$__sveltets_2_IsomorphicComponent<Record<string, never>, {
+    [evt: string]: CustomEvent<any>;
+}, {}, {}, string>;
+type SwitchInput = InstanceType<typeof SwitchInput>;
+export default SwitchInput;

web/node_modules/bits-ui/dist/bits/switch/components/switch-thumb.svelte

@@ -0,0 +1,34 @@
+<script lang="ts">
+	import { boxWith, mergeProps } from "svelte-toolbelt";
+	import type { SwitchThumbProps } from "../types.js";
+	import { SwitchThumbState } from "../switch.svelte.js";
+	import { createId } from "../../../internal/create-id.js";
+
+	const uid = $props.id();
+
+	let {
+		child,
+		children,
+		ref = $bindable(null),
+		id = createId(uid),
+		...restProps
+	}: SwitchThumbProps = $props();
+
+	const thumbState = SwitchThumbState.create({
+		id: boxWith(() => id),
+		ref: boxWith(
+			() => ref,
+			(v) => (ref = v)
+		),
+	});
+
+	const mergedProps = $derived(mergeProps(restProps, thumbState.props));
+</script>
+
+{#if child}
+	{@render child({ props: mergedProps, ...thumbState.snippetProps })}
+{:else}
+	<span {...mergedProps}>
+		{@render children?.(thumbState.snippetProps)}
+	</span>
+{/if}

web/node_modules/bits-ui/dist/bits/switch/components/switch-thumb.svelte.d.ts

@@ -0,0 +1,4 @@
+import type { SwitchThumbProps } from "../types.js";
+declare const SwitchThumb: import("svelte").Component<SwitchThumbProps, {}, "ref">;
+type SwitchThumb = ReturnType<typeof SwitchThumb>;
+export default SwitchThumb;

web/node_modules/bits-ui/dist/bits/switch/components/switch.svelte

@@ -0,0 +1,56 @@
+<script lang="ts">
+	import { boxWith, mergeProps } from "svelte-toolbelt";
+	import type { SwitchRootProps } from "../types.js";
+	import { SwitchRootState } from "../switch.svelte.js";
+	import SwitchInput from "./switch-input.svelte";
+	import { createId } from "../../../internal/create-id.js";
+	import { noop } from "../../../internal/noop.js";
+
+	const uid = $props.id();
+
+	let {
+		child,
+		children,
+		ref = $bindable(null),
+		id = createId(uid),
+		disabled = false,
+		required = false,
+		checked = $bindable(false),
+		value = "on",
+		name = undefined,
+		type = "button",
+		onCheckedChange = noop,
+		...restProps
+	}: SwitchRootProps = $props();
+
+	const rootState = SwitchRootState.create({
+		checked: boxWith(
+			() => checked,
+			(v) => {
+				checked = v;
+				onCheckedChange?.(v);
+			}
+		),
+		disabled: boxWith(() => disabled ?? false),
+		required: boxWith(() => required),
+		value: boxWith(() => value),
+		name: boxWith(() => name),
+		id: boxWith(() => id),
+		ref: boxWith(
+			() => ref,
+			(v) => (ref = v)
+		),
+	});
+
+	const mergedProps = $derived(mergeProps(restProps, rootState.props, { type }));
+</script>
+
+{#if child}
+	{@render child({ props: mergedProps, ...rootState.snippetProps })}
+{:else}
+	<button {...mergedProps}>
+		{@render children?.(rootState.snippetProps)}
+	</button>
+{/if}
+
+<SwitchInput />

web/node_modules/bits-ui/dist/bits/switch/components/switch.svelte.d.ts

@@ -0,0 +1,4 @@
+import type { SwitchRootProps } from "../types.js";
+declare const Switch: import("svelte").Component<SwitchRootProps, {}, "checked" | "ref">;
+type Switch = ReturnType<typeof Switch>;
+export default Switch;