Problem: the frontend had an implicit OS+Apps metaphor (desktop, floating
windows, an app registry) but the contract was informal — the mascot was
hardcoded into the shell, all apps were statically imported into one
800KB bundle, and there was no install/uninstall path.
Change: three phases landed.
- Phase 1 (contract + docked kind): AppDef extended with docked/noIcon
and optional geometry; the mascot registered as a docked app via a
generic DockedLayer that replaces the hardcoded <MascotLayer />;
openAppWindow branches on docked → toggleDocked; persisted docked
visibility store (absent key = visible, no APPS import to avoid a
static cycle).
- Phase 2 (lazy loading): AppDef.component is now a dynamic-import
loader; LazyApp renders with a loading skeleton; Vite code-splits
each app (main bundle 800KB→485KB); the LazyMascot wrapper is gone
since the lazy loader breaks the import cycle directly.
- Phase 3 (installable apps, local bundles): AppManifest + catalog +
installApp/uninstallApp + localStorage persistence; reactive apps
store (built-in + installed) and derived appById; App Store page;
Notes demo app; icons.ts and WindowLayer's orphan-close react to
registration so installs appear without a reload.
- Structure: data-table casing unified to PascalCase; the mislabeled
DataTable.svelte.ts (pure types, not runes) renamed to types.ts;
LazyApp colocated with its desktop-shell consumers; app-store moved
under lib/ so the dependency direction is consistent.
Risk: the app registry is now a reactive store, not a static array, so
every consumer (Desktop, DockedLayer, Taskbar, icons, windows) reads
from derived stores. Two static-cycle traps are documented in
docs/mbse/components.md §9: docked.ts must not import APPS (it would
fire a TDZ at init via the apps.ts→pages→windows.ts→here path), and
apps.ts must not statically import the mascot (the lazy loader defers
its module graph). Remote bundle loading, the /api/v1/apps endpoint,
and permission enforcement are deliberately NOT in this commit — they
are security-critical and deferred to Phase 4 with an ADR.
Verification: vitest 38/38; svelte-check + tsc clean for changed files;
eslint clean; vite build green; runtime smoke confirmed (install
Notes → icon appears → open → uninstall → icon + window gone; survives
reload). docs/mbse/components.md Component 9 and the plan updated.
Plan: plans/2026-07-21-frontend-os-apps-architecture.md
Problem: requested visual alignment with the shadcn-svelte dashboard-01
reference block (shadcn-svelte.com/blocks#dashboard-01) — the app's
sidebar/header shell and Overview stat cards looked plain by comparison.
Change: pulled the actual reference source (app-sidebar.svelte,
nav-main.svelte, site-header.svelte, section-cards.svelte from
huntabyte/shadcn-svelte) rather than approximating from screenshots.
- App.svelte: Sidebar.Root now uses variant="inset" (the floating,
rounded, shadowed content panel — already fully built into the
existing Sidebar.Inset component via peer-data selectors, just never
enabled). Brand mark is now a proper Sidebar.MenuButton matching the
reference's padding/hover treatment; "New chat" uses the reference's
primary-colored button styling. Header matches the reference exactly:
h-(--header-height) (48px, was 44px), vertical separator after the
sidebar trigger, right-aligned actions group.
- Overview.svelte: stat cards rebuilt to match section-cards.svelte —
gradient background, Card.Action badge, Card.Footer with a bold line
+ muted context line, tabular-nums, responsive @container grid
(1/2/4 columns). Deliberately did NOT copy the reference's fake
trend-percentage badges (Oikos doesn't track historical trends, and
this project's whole thrust has been eliminating dishonest UI state —
see 279549c). Badges instead reflect real current-state signals
(healthy/degraded/down, clear/needs-review) computed from the actual
dashboard summary.
- EntityDetailContent.svelte + Entities/Signals/Ops/Events/Agent/
Audit/Knowledge pages: normalized root padding to p-4 md:p-6 (was a
flat p-6) to match the reference's responsive py-4 md:py-6 convention.
Risk: reversible_low (UI-only, no data or behavior changes).
Verification: npx tsc --noEmit clean (excluding pre-existing unrelated
.svelte type-resolution warnings, same as prior commits). go build/vet
clean (backend untouched, sanity check only). Manually verified in the
browser preview at 1400px: inset sidebar's margin/rounded-corner/shadow
classes confirmed applied via computed styles; Overview cards render
with real live numbers from the now-fixed dashboard summary endpoint;
Signals/Ops pages confirmed visually consistent with the new spacing.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Add three new pages completing the control-room web UI:
- Agent activity: polls /agent-activity every 5s, filterable by type/agent
- Knowledge search: FTS over /knowledge/search with snippet + entity links
- Audit trail: browseable audit log with actor/action/entity filters
Enhanced live events page with correlation-id clustering (Groups toggle).
Added fetchAgentActivity/searchKnowledge/fetchAudit to the API client.
11 nav items now cover all planned control-room views.
