restructure to react spa + hono api, fix missing server/ and lib/

rewrite from monolithic hono jsx to react 19 spa with tanstack router
+ hono json api backend. add scan, review, execute, nodes, and setup
pages. multi-stage dockerfile (node for vite build, bun for runtime).

previously, server/ and src/shared/lib/ were silently excluded by
global gitignore patterns (/server/ from emacs, lib/ from python).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/services/radarr.ts

@@ -0,0 +1,108 @@
+import { normalizeLanguage } from './jellyfin';
+
+export interface RadarrConfig {
+	url: string;
+	apiKey: string;
+}
+
+function headers(apiKey: string): Record<string, string> {
+	return { 'X-Api-Key': apiKey };
+}
+
+export async function testConnection(cfg: RadarrConfig): Promise<{ ok: boolean; error?: string }> {
+	try {
+		const res = await fetch(`${cfg.url}/api/v3/system/status`, {
+			headers: headers(cfg.apiKey),
+		});
+		if (!res.ok) return { ok: false, error: `HTTP ${res.status}` };
+		return { ok: true };
+	} catch (e) {
+		return { ok: false, error: String(e) };
+	}
+}
+
+interface RadarrMovie {
+	tmdbId?: number;
+	imdbId?: string;
+	originalLanguage?: { name: string; nameTranslated?: string };
+}
+
+/** Returns ISO 639-2 original language or null. */
+export async function getOriginalLanguage(
+	cfg: RadarrConfig,
+	ids: { tmdbId?: string; imdbId?: string }
+): Promise<string | null> {
+	try {
+		let movie: RadarrMovie | null = null;
+
+		if (ids.tmdbId) {
+			const res = await fetch(`${cfg.url}/api/v3/movie?tmdbId=${ids.tmdbId}`, {
+				headers: headers(cfg.apiKey),
+			});
+			if (res.ok) {
+				const list = (await res.json()) as RadarrMovie[];
+				movie = list[0] ?? null;
+			}
+		}
+
+		if (!movie && ids.imdbId) {
+			const res = await fetch(`${cfg.url}/api/v3/movie`, {
+				headers: headers(cfg.apiKey),
+			});
+			if (res.ok) {
+				const list = (await res.json()) as (RadarrMovie & { imdbId?: string })[];
+				movie = list.find((m) => m.imdbId === ids.imdbId) ?? null;
+			}
+		}
+
+		if (!movie?.originalLanguage) return null;
+		return iso6391To6392(movie.originalLanguage.name) ?? null;
+	} catch {
+		return null;
+	}
+}
+
+// Radarr returns language names like "English", "French", "German", etc.
+// Map them to ISO 639-2 codes.
+const NAME_TO_639_2: Record<string, string> = {
+	english: 'eng',
+	french: 'fra',
+	german: 'deu',
+	spanish: 'spa',
+	italian: 'ita',
+	portuguese: 'por',
+	japanese: 'jpn',
+	korean: 'kor',
+	chinese: 'zho',
+	arabic: 'ara',
+	russian: 'rus',
+	dutch: 'nld',
+	swedish: 'swe',
+	norwegian: 'nor',
+	danish: 'dan',
+	finnish: 'fin',
+	polish: 'pol',
+	turkish: 'tur',
+	thai: 'tha',
+	hindi: 'hin',
+	hungarian: 'hun',
+	czech: 'ces',
+	romanian: 'ron',
+	greek: 'ell',
+	hebrew: 'heb',
+	persian: 'fas',
+	ukrainian: 'ukr',
+	indonesian: 'ind',
+	malay: 'msa',
+	vietnamese: 'vie',
+	catalan: 'cat',
+	tamil: 'tam',
+	telugu: 'tel',
+	'brazilian portuguese': 'por',
+	'portuguese (brazil)': 'por',
+};
+
+function iso6391To6392(name: string): string | null {
+	const key = name.toLowerCase().trim();
+	return NAME_TO_639_2[key] ?? normalizeLanguage(key.slice(0, 3)) ?? null;
+}