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/range-calendar/components/range-calendar-cell.svelte

@@ -0,0 +1,38 @@
+<script lang="ts">
+	import { boxWith, mergeProps } from "svelte-toolbelt";
+	import type { RangeCalendarCellProps } from "../types.js";
+	import { RangeCalendarCellState } from "../range-calendar.svelte.js";
+	import { createId } from "../../../internal/create-id.js";
+
+	const uid = $props.id();
+
+	let {
+		children,
+		child,
+		id = createId(uid),
+		ref = $bindable(null),
+		date,
+		month,
+		...restProps
+	}: RangeCalendarCellProps = $props();
+
+	const cellState = RangeCalendarCellState.create({
+		id: boxWith(() => id),
+		ref: boxWith(
+			() => ref,
+			(v) => (ref = v)
+		),
+		date: boxWith(() => date),
+		month: boxWith(() => month),
+	});
+
+	const mergedProps = $derived(mergeProps(restProps, cellState.props));
+</script>
+
+{#if child}
+	{@render child({ props: mergedProps, ...cellState.snippetProps })}
+{:else}
+	<td {...mergedProps}>
+		{@render children?.(cellState.snippetProps)}
+	</td>
+{/if}

web/node_modules/bits-ui/dist/bits/range-calendar/components/range-calendar-cell.svelte.d.ts

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

web/node_modules/bits-ui/dist/bits/range-calendar/components/range-calendar-day.svelte

@@ -0,0 +1,38 @@
+<script lang="ts">
+	import { boxWith, mergeProps } from "svelte-toolbelt";
+	import type { RangeCalendarDayProps } from "../types.js";
+	import { RangeCalendarDayState } from "../range-calendar.svelte.js";
+	import { createId } from "../../../internal/create-id.js";
+
+	const uid = $props.id();
+
+	let {
+		children,
+		child,
+		id = createId(uid),
+		ref = $bindable(null),
+		...restProps
+	}: RangeCalendarDayProps = $props();
+
+	const dayState = RangeCalendarDayState.create({
+		id: boxWith(() => id),
+		ref: boxWith(
+			() => ref,
+			(v) => (ref = v)
+		),
+	});
+
+	const mergedProps = $derived(mergeProps(restProps, dayState.props));
+</script>
+
+{#if child}
+	{@render child({ props: mergedProps, ...dayState.snippetProps })}
+{:else}
+	<div {...mergedProps}>
+		{#if children}
+			{@render children?.(dayState.snippetProps)}
+		{:else}
+			{dayState.cell.opts.date.current.day}
+		{/if}
+	</div>
+{/if}

web/node_modules/bits-ui/dist/bits/range-calendar/components/range-calendar-day.svelte.d.ts

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

web/node_modules/bits-ui/dist/bits/range-calendar/components/range-calendar.svelte

@@ -0,0 +1,153 @@
+<script lang="ts">
+	import { watch } from "runed";
+	import { boxWith, mergeProps } from "svelte-toolbelt";
+	import { type DateValue } from "@internationalized/date";
+	import type { RangeCalendarRootProps } from "../types.js";
+	import { RangeCalendarRootState } from "../range-calendar.svelte.js";
+	import { noop } from "../../../internal/noop.js";
+	import { createId } from "../../../internal/create-id.js";
+	import { getDefaultDate } from "../../../internal/date-time/utils.js";
+	import { resolveLocaleProp } from "../../utilities/config/prop-resolvers.js";
+
+	const uid = $props.id();
+
+	let {
+		children,
+		child,
+		id = createId(uid),
+		ref = $bindable(null),
+		value = $bindable(),
+		onValueChange = noop,
+		placeholder = $bindable(),
+		onPlaceholderChange = noop,
+		weekdayFormat = "narrow",
+		weekStartsOn,
+		pagedNavigation = false,
+		isDateDisabled = () => false,
+		isDateUnavailable = () => false,
+		fixedWeeks = false,
+		numberOfMonths = 1,
+		locale,
+		calendarLabel = "Event",
+		disabled = false,
+		readonly = false,
+		minValue = undefined,
+		maxValue = undefined,
+		preventDeselect = false,
+		disableDaysOutsideMonth = true,
+		minDays,
+		maxDays,
+		onStartValueChange = noop,
+		onEndValueChange = noop,
+		excludeDisabled = false,
+		monthFormat = "long",
+		yearFormat = "numeric",
+		...restProps
+	}: RangeCalendarRootProps = $props();
+
+	let startValue = $state<DateValue | undefined>(value?.start);
+	let endValue = $state<DateValue | undefined>(value?.end);
+
+	const defaultPlaceholder = getDefaultDate({
+		defaultValue: value?.start,
+		minValue,
+		maxValue,
+	});
+
+	function handleDefaultPlaceholder() {
+		if (placeholder !== undefined) return;
+		placeholder = defaultPlaceholder;
+	}
+
+	// SSR
+	handleDefaultPlaceholder();
+
+	watch.pre(
+		() => placeholder,
+		() => {
+			handleDefaultPlaceholder();
+		}
+	);
+
+	function handleDefaultValue() {
+		if (value !== undefined) return;
+		value = { start: undefined, end: undefined };
+	}
+
+	// SSR
+	handleDefaultValue();
+
+	watch.pre(
+		() => value,
+		() => {
+			handleDefaultValue();
+		}
+	);
+
+	const rootState = RangeCalendarRootState.create({
+		id: boxWith(() => id),
+		ref: boxWith(
+			() => ref,
+			(v) => (ref = v)
+		),
+		value: boxWith(
+			() => value!,
+			(v) => {
+				value = v;
+				onValueChange(v);
+			}
+		),
+		placeholder: boxWith(
+			() => placeholder!,
+			(v) => {
+				placeholder = v;
+				onPlaceholderChange(v);
+			}
+		),
+		disabled: boxWith(() => disabled),
+		readonly: boxWith(() => readonly),
+		preventDeselect: boxWith(() => preventDeselect),
+		minValue: boxWith(() => minValue),
+		maxValue: boxWith(() => maxValue),
+		isDateUnavailable: boxWith(() => isDateUnavailable),
+		isDateDisabled: boxWith(() => isDateDisabled),
+		pagedNavigation: boxWith(() => pagedNavigation),
+		weekStartsOn: boxWith(() => weekStartsOn),
+		weekdayFormat: boxWith(() => weekdayFormat),
+		numberOfMonths: boxWith(() => numberOfMonths),
+		locale: resolveLocaleProp(() => locale),
+		calendarLabel: boxWith(() => calendarLabel),
+		fixedWeeks: boxWith(() => fixedWeeks),
+		disableDaysOutsideMonth: boxWith(() => disableDaysOutsideMonth),
+		minDays: boxWith(() => minDays),
+		maxDays: boxWith(() => maxDays),
+		excludeDisabled: boxWith(() => excludeDisabled),
+		startValue: boxWith(
+			() => startValue,
+			(v) => {
+				startValue = v;
+				onStartValueChange(v);
+			}
+		),
+		endValue: boxWith(
+			() => endValue,
+			(v) => {
+				endValue = v;
+				onEndValueChange(v);
+			}
+		),
+		monthFormat: boxWith(() => monthFormat),
+		yearFormat: boxWith(() => yearFormat),
+		defaultPlaceholder,
+	});
+
+	const mergedProps = $derived(mergeProps(restProps, rootState.props));
+</script>
+
+{#if child}
+	{@render child({ props: mergedProps, ...rootState.snippetProps })}
+{:else}
+	<div {...mergedProps}>
+		{@render children?.(rootState.snippetProps)}
+	</div>
+{/if}

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

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