FE-0: Projektgrundgerüst (SvelteKit, Tailwind, Docker, Caddy)

src/lib/api.ts

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+const API_BASE_URL = import.meta.env.NSCT_API_BASE_URL || 'http://localhost:8080';
+
+interface ApiConfig {
+    apiKey?: string;
+}
+
+function headers(config?: ApiConfig): Record<string, string> {
+    const h: Record<string, string> = {
+        'Content-Type': 'application/json'
+    };
+    if (config?.apiKey) {
+        h['X-API-Key'] = config.apiKey;
+    }
+    return h;
+}
+
+export async function apiPost<T>(
+    path: string,
+    body?: unknown,
+    config?: ApiConfig
+): Promise<T> {
+    const res = await fetch(`${API_BASE_URL}${path}`, {
+        method: 'POST',
+        headers: headers(config),
+        body: body ? JSON.stringify(body) : undefined
+    });
+    if (!res.ok) {
+        throw new Error(`API Error ${res.status}: ${res.statusText}`);
+    }
+    return res.json();
+}
+
+export async function apiGet<T>(
+    path: string,
+    config?: ApiConfig
+): Promise<T> {
+    const res = await fetch(`${API_BASE_URL}${path}`, {
+        headers: headers(config)
+    });
+    if (!res.ok) {
+        throw new Error(`API Error ${res.status}: ${res.statusText}`);
+    }
+    return res.json();
+}
+
+export async function apiDelete<T>(
+    path: string,
+    config?: ApiConfig
+): Promise<T> {
+    const res = await fetch(`${API_BASE_URL}${path}`, {
+        method: 'DELETE',
+        headers: headers(config)
+    });
+    if (!res.ok) {
+        throw new Error(`API Error ${res.status}: ${res.statusText}`);
+    }
+    return res.json();
+}
+
+export { API_BASE_URL };

src/lib/stores.ts

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+import { writable } from 'svelte/store';
+
+// Theme: 'dark' | 'light'
+export const theme = writable<'dark' | 'light'>('dark');
+
+// User: null oder { apiKey, username? }
+export const user = writable<{ apiKey: string; username?: string } | null>(null);
+
+// Sidebar: ist offen oder geschlossen (mobile)
+export const sidebarOpen = writable(false);
+
+// Session IDs der letzten Researches
+export const recentResearchIds = writable<string[]>([]);

src/lib/theme.ts

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+import { theme } from '$lib/stores';
+
+export function initTheme() {
+    const stored = localStorage.getItem('nsct-theme');
+    if (stored === 'dark' || stored === 'light') {
+        theme.set(stored);
+    } else {
+        const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+        theme.set(prefersDark ? 'dark' : 'light');
+    }
+}
+
+export function toggleTheme() {
+    theme.update(t => t === 'dark' ? 'light' : 'dark');
+}
+
+export function applyTheme(t: 'dark' | 'light') {
+    document.documentElement.classList.toggle('dark', t === 'dark');
+    localStorage.setItem('nsct-theme', t);
+}

src/lib/types.ts

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+export interface ResearchStatus {
+    id: string;
+    status: string;
+    progress?: number;
+    error?: string;
+}
+
+export interface ResearchSummary {
+    id: string;
+    query: string;
+    status: string;
+    created_at: string;
+    completed_at?: string;
+}
+
+export interface SourceInfo {
+    id: string;
+    url: string;
+    title: string;
+    domain?: string;
+    source_type?: string;
+    independence_score?: number;
+}
+
+export interface ClaimInfo {
+    id: string;
+    claim: string;
+    claim_type: string;
+    confidence: number;
+    source_id?: string;
+    evidence_span?: string;
+}
+
+export interface EvidenceScore {
+    source_independence: number;
+    primary_source_proximity: number;
+    cross_source_support: number;
+    contradiction_level: number;
+    evidence_directness: number;
+    date_relevance: number;
+}