feat(ui): three-page console SPA on @unom/ui + the kit's react helpers

Overview (exporter health, Playnite version, counts, sync, live SSE activity,
and a first-run panel that names the exact ingest path the .pext writes to),
Library (covers + per-game include toggles + why-not-synced), Settings
(filters, art delivery, sync cadence, paths).

Data layer is AtomHttpApi atoms derived from the shared contract; the whole
thing runs with zero host against an in-browser mock transport with four
scenarios, and Storybook renders the real pages on the same fixtures. CI now
asserts the production bundle carries no fixture strings.

Also: CI rebuilt for the workspace layout (one root install, per-package
typecheck, publish from plugin/ on a v* tag) with the exporter job and
`publish: needs [build, exporter]` unchanged; README rewritten around the three
workspaces, with the ingest inbox explained as the load-bearing mechanism it is.

ui/tsconfig.json

@@ -0,0 +1,20 @@
+{
+	"compilerOptions": {
+		"target": "ES2022",
+		"module": "ESNext",
+		"moduleResolution": "bundler",
+		"lib": ["ES2022", "DOM", "DOM.Iterable"],
+		"jsx": "react-jsx",
+		"strict": true,
+		"noUncheckedIndexedAccess": true,
+		"verbatimModuleSyntax": true,
+		"skipLibCheck": true,
+		"noEmit": true,
+		"types": ["vite/client"],
+		"baseUrl": ".",
+		"paths": {
+			"@/*": ["./src/*"]
+		}
+	},
+	"include": ["src", ".storybook", "vite.config.ts"]
+}