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/scroll-area/scroll-area.svelte.d.ts

@@ -0,0 +1,340 @@
+/**
+ * This logic is adapted from Radix UI ScrollArea component.
+ * https://github.com/radix-ui/primitives/blob/main/packages/react/scroll-area/src/ScrollArea.tsx
+ * Credit to Jenna Smith (@jjenzz) for the original implementation.
+ * Incredible thought must have went into solving all the intricacies of this component.
+ */
+import { Context } from "runed";
+import { DOMContext, type ReadableBoxedValues } from "svelte-toolbelt";
+import type { ScrollAreaType } from "./types.js";
+import type { BitsPointerEvent, RefAttachment, WithRefOpts } from "../../internal/types.js";
+import { type Direction, type Orientation } from "../../shared/index.js";
+import { StateMachine } from "../../internal/state-machine.js";
+export declare const ScrollAreaRootContext: Context<ScrollAreaRootState>;
+export declare const ScrollAreaScrollbarContext: Context<ScrollAreaScrollbarState>;
+export declare const ScrollAreaScrollbarVisibleContext: Context<ScrollAreaScrollbarVisibleState>;
+export declare const ScrollAreaScrollbarAxisContext: Context<ScrollbarAxis>;
+export declare const ScrollAreaScrollbarSharedContext: Context<ScrollAreaScrollbarSharedState>;
+interface Sizes {
+    content: number;
+    viewport: number;
+    scrollbar: {
+        size: number;
+        paddingStart: number;
+        paddingEnd: number;
+    };
+}
+interface ScrollAreaRootStateOpts extends WithRefOpts, ReadableBoxedValues<{
+    dir: Direction;
+    type: ScrollAreaType;
+    scrollHideDelay: number;
+}> {
+}
+export declare class ScrollAreaRootState {
+    static create(opts: ScrollAreaRootStateOpts): ScrollAreaRootState;
+    readonly opts: ScrollAreaRootStateOpts;
+    readonly attachment: RefAttachment;
+    scrollAreaNode: HTMLElement | null;
+    viewportNode: HTMLElement | null;
+    contentNode: HTMLElement | null;
+    scrollbarXNode: HTMLElement | null;
+    scrollbarYNode: HTMLElement | null;
+    cornerWidth: number;
+    cornerHeight: number;
+    scrollbarXEnabled: boolean;
+    scrollbarYEnabled: boolean;
+    domContext: DOMContext;
+    constructor(opts: ScrollAreaRootStateOpts);
+    readonly props: {
+        readonly id: string;
+        readonly dir: Direction;
+        readonly style: {
+            readonly position: "relative";
+            readonly "--bits-scroll-area-corner-height": `${number}px`;
+            readonly "--bits-scroll-area-corner-width": `${number}px`;
+        };
+    };
+}
+interface ScrollAreaViewportStateOpts extends WithRefOpts {
+}
+export declare class ScrollAreaViewportState {
+    #private;
+    static create(opts: ScrollAreaViewportStateOpts): ScrollAreaViewportState;
+    readonly opts: ScrollAreaViewportStateOpts;
+    readonly root: ScrollAreaRootState;
+    readonly attachment: RefAttachment;
+    readonly contentAttachment: RefAttachment;
+    constructor(opts: ScrollAreaViewportStateOpts, root: ScrollAreaRootState);
+    readonly props: {
+        readonly id: string;
+        readonly style: {
+            readonly overflowX: "scroll" | "hidden";
+            readonly overflowY: "scroll" | "hidden";
+        };
+    };
+    readonly contentProps: {
+        readonly id: string;
+        readonly "data-scroll-area-content": "";
+        /**
+         * When horizontal scrollbar is visible: this element should be at least
+         * as wide as its children for size calculations to work correctly.
+         *
+         * When horizontal scrollbar is NOT visible: this element's width should
+         * be constrained by the parent container to enable `text-overflow: ellipsis`
+         */
+        readonly style: {
+            readonly minWidth: "fit-content" | undefined;
+        };
+    };
+}
+interface ScrollAreaScrollbarStateOpts extends WithRefOpts, ReadableBoxedValues<{
+    orientation: Orientation;
+}> {
+}
+export declare class ScrollAreaScrollbarState {
+    static create(opts: ScrollAreaScrollbarStateOpts): ScrollAreaScrollbarState;
+    readonly opts: ScrollAreaScrollbarStateOpts;
+    readonly root: ScrollAreaRootState;
+    readonly isHorizontal: boolean;
+    hasThumb: boolean;
+    constructor(opts: ScrollAreaScrollbarStateOpts, root: ScrollAreaRootState);
+}
+export declare class ScrollAreaScrollbarHoverState {
+    static create(): ScrollAreaScrollbarHoverState;
+    readonly scrollbar: ScrollAreaScrollbarState;
+    root: ScrollAreaRootState;
+    isVisible: boolean;
+    constructor(scrollbar: ScrollAreaScrollbarState);
+    readonly props: {
+        readonly "data-state": "hidden" | "visible";
+    };
+}
+export declare class ScrollAreaScrollbarScrollState {
+    static create(): ScrollAreaScrollbarScrollState;
+    readonly scrollbar: ScrollAreaScrollbarState;
+    readonly root: ScrollAreaRootState;
+    readonly machine: StateMachine<{
+        hidden: {
+            SCROLL: "scrolling";
+        };
+        scrolling: {
+            SCROLL_END: "idle";
+            POINTER_ENTER: "interacting";
+        };
+        interacting: {
+            SCROLL: "interacting";
+            POINTER_LEAVE: "idle";
+        };
+        idle: {
+            HIDE: "hidden";
+            SCROLL: "scrolling";
+            POINTER_ENTER: "interacting";
+        };
+    }>;
+    readonly isHidden: boolean;
+    constructor(scrollbar: ScrollAreaScrollbarState);
+    onpointerenter(_: BitsPointerEvent): void;
+    onpointerleave(_: BitsPointerEvent): void;
+    readonly props: {
+        readonly "data-state": "hidden" | "visible";
+        readonly onpointerenter: (_: BitsPointerEvent) => void;
+        readonly onpointerleave: (_: BitsPointerEvent) => void;
+    };
+}
+export declare class ScrollAreaScrollbarAutoState {
+    static create(): ScrollAreaScrollbarAutoState;
+    readonly scrollbar: ScrollAreaScrollbarState;
+    readonly root: ScrollAreaRootState;
+    isVisible: boolean;
+    constructor(scrollbar: ScrollAreaScrollbarState);
+    readonly props: {
+        readonly "data-state": "hidden" | "visible";
+    };
+}
+export declare class ScrollAreaScrollbarVisibleState {
+    static create(): ScrollAreaScrollbarVisibleState;
+    readonly scrollbar: ScrollAreaScrollbarState;
+    readonly root: ScrollAreaRootState;
+    thumbNode: HTMLElement | null;
+    pointerOffset: number;
+    sizes: Sizes;
+    readonly thumbRatio: number;
+    readonly hasThumb: boolean;
+    prevTransformStyle: string;
+    constructor(scrollbar: ScrollAreaScrollbarState);
+    setSizes(sizes: Sizes): void;
+    getScrollPosition(pointerPos: number, dir?: Direction): number;
+    onThumbPointerUp(): void;
+    onThumbPointerDown(pointerPos: number): void;
+    xOnThumbPositionChange(): void;
+    xOnWheelScroll(scrollPos: number): void;
+    xOnDragScroll(pointerPos: number): void;
+    yOnThumbPositionChange(): void;
+    yOnWheelScroll(scrollPos: number): void;
+    yOnDragScroll(pointerPos: number): void;
+}
+interface ScrollbarAxisStateOpts extends ReadableBoxedValues<{
+    mounted: boolean;
+}> {
+}
+interface ScrollbarAxisState {
+    onThumbPointerDown: (pointerPos: {
+        x: number;
+        y: number;
+    }) => void;
+    onDragScroll: (pointerPos: {
+        x: number;
+        y: number;
+    }) => void;
+    onWheelScroll: (e: WheelEvent, maxScrollPos: number) => void;
+    onResize: () => void;
+    onThumbPositionChange: () => void;
+    onThumbPointerUp: () => void;
+    props: {
+        id: string;
+        "data-orientation": "horizontal" | "vertical";
+        style: Record<string, string | number | undefined>;
+    };
+}
+export declare class ScrollAreaScrollbarXState implements ScrollbarAxisState {
+    static create(opts: ScrollbarAxisStateOpts): ScrollbarAxis;
+    readonly opts: ScrollbarAxisStateOpts;
+    readonly scrollbarVis: ScrollAreaScrollbarVisibleState;
+    readonly root: ScrollAreaRootState;
+    readonly scrollbar: ScrollAreaScrollbarState;
+    readonly attachment: RefAttachment;
+    computedStyle: CSSStyleDeclaration | undefined;
+    constructor(opts: ScrollbarAxisStateOpts, scrollbarVis: ScrollAreaScrollbarVisibleState);
+    onThumbPointerDown: (pointerPos: {
+        x: number;
+        y: number;
+    }) => void;
+    onDragScroll: (pointerPos: {
+        x: number;
+        y: number;
+    }) => void;
+    onThumbPointerUp: () => void;
+    onThumbPositionChange: () => void;
+    onWheelScroll: (e: WheelEvent, maxScrollPos: number) => void;
+    onResize: () => void;
+    readonly thumbSize: number;
+    readonly props: {
+        readonly id: string;
+        readonly "data-orientation": "horizontal";
+        readonly style: {
+            readonly bottom: 0;
+            readonly left: 0 | "var(--bits-scroll-area-corner-width)";
+            readonly right: 0 | "var(--bits-scroll-area-corner-width)";
+            readonly "--bits-scroll-area-thumb-width": `${number}px`;
+        };
+    };
+}
+export declare class ScrollAreaScrollbarYState implements ScrollbarAxisState {
+    static create(opts: ScrollbarAxisStateOpts): ScrollbarAxis;
+    readonly opts: ScrollbarAxisStateOpts;
+    readonly scrollbarVis: ScrollAreaScrollbarVisibleState;
+    readonly root: ScrollAreaRootState;
+    readonly scrollbar: ScrollAreaScrollbarState;
+    readonly attachment: RefAttachment;
+    computedStyle: CSSStyleDeclaration | undefined;
+    constructor(opts: ScrollbarAxisStateOpts, scrollbarVis: ScrollAreaScrollbarVisibleState);
+    onThumbPointerDown(pointerPos: {
+        x: number;
+        y: number;
+    }): void;
+    onDragScroll(pointerPos: {
+        x: number;
+        y: number;
+    }): void;
+    onThumbPointerUp(): void;
+    onThumbPositionChange(): void;
+    onWheelScroll(e: WheelEvent, maxScrollPos: number): void;
+    onResize(): void;
+    readonly thumbSize: number;
+    readonly props: {
+        readonly id: string;
+        readonly "data-orientation": "vertical";
+        readonly style: {
+            readonly top: 0;
+            readonly right: 0 | undefined;
+            readonly left: 0 | undefined;
+            readonly bottom: "var(--bits-scroll-area-corner-height)";
+            readonly "--bits-scroll-area-thumb-height": `${number}px`;
+        };
+    };
+}
+type ScrollbarAxis = ScrollAreaScrollbarXState | ScrollAreaScrollbarYState;
+export declare class ScrollAreaScrollbarSharedState {
+    #private;
+    static create(): ScrollAreaScrollbarSharedState;
+    readonly scrollbarState: ScrollbarAxis;
+    readonly root: ScrollAreaRootState;
+    readonly scrollbarVis: ScrollAreaScrollbarVisibleState;
+    readonly scrollbar: ScrollAreaScrollbarState;
+    rect: DOMRect | null;
+    prevWebkitUserSelect: string;
+    handleResize: () => void;
+    handleThumbPositionChange: () => void;
+    handleWheelScroll: (e: WheelEvent, maxScrollPos: number) => void;
+    handleThumbPointerDown: (pointerPos: {
+        x: number;
+        y: number;
+    }) => void;
+    handleThumbPointerUp: () => void;
+    readonly maxScrollPos: number;
+    constructor(scrollbarState: ScrollbarAxis);
+    handleDragScroll(e: PointerEvent): void;
+    onpointerdown(e: BitsPointerEvent): void;
+    onpointermove(e: BitsPointerEvent): void;
+    onpointerup(e: BitsPointerEvent): void;
+    onlostpointercapture(_: BitsPointerEvent): void;
+    readonly props: never;
+}
+interface ScrollAreaThumbImplStateOpts extends WithRefOpts, ReadableBoxedValues<{
+    mounted: boolean;
+}> {
+}
+export declare class ScrollAreaThumbImplState {
+    #private;
+    static create(opts: ScrollAreaThumbImplStateOpts): ScrollAreaThumbImplState;
+    readonly opts: ScrollAreaThumbImplStateOpts;
+    readonly scrollbarState: ScrollAreaScrollbarSharedState;
+    readonly attachment: RefAttachment;
+    constructor(opts: ScrollAreaThumbImplStateOpts, scrollbarState: ScrollAreaScrollbarSharedState);
+    onpointerdowncapture(e: BitsPointerEvent): void;
+    onpointerup(_: BitsPointerEvent): void;
+    readonly props: {
+        readonly id: string;
+        readonly "data-state": "hidden" | "visible";
+        readonly style: {
+            readonly width: "var(--bits-scroll-area-thumb-width)";
+            readonly height: "var(--bits-scroll-area-thumb-height)";
+            readonly transform: string;
+        };
+        readonly onpointerdowncapture: (e: BitsPointerEvent) => void;
+        readonly onpointerup: (_: BitsPointerEvent) => void;
+    };
+}
+interface ScrollAreaCornerImplStateOpts extends WithRefOpts {
+}
+export declare class ScrollAreaCornerImplState {
+    #private;
+    static create(opts: ScrollAreaCornerImplStateOpts): ScrollAreaCornerImplState;
+    readonly opts: ScrollAreaCornerImplStateOpts;
+    readonly root: ScrollAreaRootState;
+    readonly attachment: RefAttachment;
+    readonly hasSize: boolean;
+    constructor(opts: ScrollAreaCornerImplStateOpts, root: ScrollAreaRootState);
+    readonly props: {
+        id: string;
+        style: {
+            width: number;
+            height: number;
+            position: string;
+            right: number | undefined;
+            left: number | undefined;
+            bottom: number;
+        };
+    };
+}
+export {};