feat: Profilseite, Etikettendruck mit QR-Code, mehr Automatisierungen und Entra-ID-SSO

- Profilseite mit MFA-Einrichtung, Passwort/E-Mail/Name aendern, Konto deaktivieren
- Bearbeiten-Buttons fuer Bienenstaende/Voelker/Koeniginnen/Aufgaben-Datensaetze
- Restliche englische Enum-Werte durch deutsche Labels ersetzt (SelectValue-Fix)
- Sidebar-Eintraege fuer Ernten/Schleuderungen ergaenzt
- Automatisierungen von 3 auf 6 Regeln erweitert (Schwarmstimmung, kritischer Gesundheitsstatus, Lagerbestand)
- Responsive Grid-Layout fuer Volk-/Koeniginnen-/Honigchargen-/Bienenstand-Detailseiten
- Etikettenvorlagen mit Platzhaltern inkl. QR-Code (verweist auf Herkunftsseite) und PDF-Druck
- Entra-ID-SSO (Authorization Code + PKCE, kein Auto-Provisioning, Secrets nur ueber Environment-Variablen)

ApiCore-Backend/src/auth/sso/sso.controller.ts

@@ -0,0 +1,158 @@
+import {
+  Controller,
+  Get,
+  HttpCode,
+  HttpStatus,
+  Post,
+  Req,
+  Res,
+  UnauthorizedException,
+} from '@nestjs/common';
+import { ApiTags } from '@nestjs/swagger';
+import { Throttle } from '@nestjs/throttler';
+import type { Request, Response } from 'express';
+import { Public } from '../decorators/public.decorator';
+import { AuthService } from '../auth.service';
+import { AccessTokenDto } from '../dto/access-token.dto';
+import { SENSITIVE_ACTION_THROTTLE } from '../util/throttle';
+import { setRefreshTokenCookie } from '../util/refresh-token-cookie';
+import { SsoService } from './sso.service';
+
+const PKCE_COOKIE = 'oidcPkceVerifier';
+const PKCE_COOKIE_PATH = '/api/v1/auth/sso';
+const PKCE_COOKIE_MAX_AGE_MS = 5 * 60 * 1000;
+
+// Scoped to /complete only - the completion endpoint is the only place that
+// ever needs to read it, and it's never sent on the wider /auth/sso/* path.
+const SSO_CODE_COOKIE = 'oidcSsoCode';
+const SSO_CODE_COOKIE_PATH = '/api/v1/auth/sso/complete';
+const SSO_CODE_COOKIE_MAX_AGE_MS = 60 * 1000;
+
+interface PkceCookiePayload {
+  codeVerifier: string;
+  state: string;
+}
+
+@ApiTags('auth')
+@Controller('auth/sso')
+export class SsoController {
+  constructor(
+    private readonly ssoService: SsoService,
+    private readonly authService: AuthService,
+  ) {}
+
+  private frontendLoginUrl(): string {
+    return `${process.env.FRONTEND_ORIGIN ?? 'http://localhost:3000'}/login`;
+  }
+
+  private cookieOptions(path: string, maxAge: number) {
+    return {
+      httpOnly: true,
+      secure: process.env.COOKIE_SECURE !== 'false',
+      sameSite: 'lax' as const,
+      path,
+      maxAge,
+    };
+  }
+
+  @Public()
+  @Get('status')
+  status(): { enabled: boolean } {
+    return { enabled: this.ssoService.isConfigured() };
+  }
+
+  @Public()
+  @Get('login')
+  async login(@Res() res: Response): Promise<void> {
+    const { redirectUrl, codeVerifier, state } =
+      await this.ssoService.buildAuthorizationRequest();
+    const payload: PkceCookiePayload = { codeVerifier, state };
+    res.cookie(
+      PKCE_COOKIE,
+      JSON.stringify(payload),
+      this.cookieOptions(PKCE_COOKIE_PATH, PKCE_COOKIE_MAX_AGE_MS),
+    );
+    res.redirect(redirectUrl);
+  }
+
+  @Public()
+  @Get('callback')
+  async callback(@Req() req: Request, @Res() res: Response): Promise<void> {
+    const rawCookie = (req.cookies as Record<string, string> | undefined)?.[
+      PKCE_COOKIE
+    ];
+    res.clearCookie(PKCE_COOKIE, { path: PKCE_COOKIE_PATH });
+
+    const pkce = this.parsePkceCookie(rawCookie);
+    if (!pkce) {
+      res.redirect(`${this.frontendLoginUrl()}?ssoError=session_expired`);
+      return;
+    }
+
+    const callbackUrl = new URL(
+      req.originalUrl,
+      `${req.protocol}://${req.get('host')}`,
+    );
+    const result = await this.ssoService.handleCallback(
+      callbackUrl,
+      pkce.codeVerifier,
+      pkce.state,
+    );
+    if (result.status === 'error') {
+      res.redirect(`${this.frontendLoginUrl()}?ssoError=${result.reason}`);
+      return;
+    }
+
+    // The one-time completion code never touches the URL (history, server
+    // logs, Referer headers) - it travels only in an httpOnly cookie scoped
+    // to the /complete endpoint, which the frontend calls right after.
+    res.cookie(
+      SSO_CODE_COOKIE,
+      result.ssoCode,
+      this.cookieOptions(SSO_CODE_COOKIE_PATH, SSO_CODE_COOKIE_MAX_AGE_MS),
+    );
+    res.redirect(`${this.frontendLoginUrl()}?ssoPending=1`);
+  }
+
+  @Public()
+  @Throttle(SENSITIVE_ACTION_THROTTLE)
+  @Post('complete')
+  @HttpCode(HttpStatus.OK)
+  async complete(
+    @Req() req: Request,
+    @Res({ passthrough: true }) res: Response,
+  ): Promise<AccessTokenDto> {
+    const ssoCode = (req.cookies as Record<string, string> | undefined)?.[
+      SSO_CODE_COOKIE
+    ];
+    res.clearCookie(SSO_CODE_COOKIE, { path: SSO_CODE_COOKIE_PATH });
+    if (!ssoCode) {
+      throw new UnauthorizedException(
+        'SSO-Anmeldung abgelaufen, bitte erneut versuchen',
+      );
+    }
+    const { userId } = this.ssoService.verifySsoCode(ssoCode);
+    const { accessToken, refreshToken } =
+      await this.authService.issueTokensForSsoUser(userId);
+    setRefreshTokenCookie(res, refreshToken);
+    return { accessToken };
+  }
+
+  private parsePkceCookie(raw: string | undefined): PkceCookiePayload | null {
+    if (!raw) {
+      return null;
+    }
+    try {
+      const parsed = JSON.parse(raw) as Partial<PkceCookiePayload>;
+      if (
+        typeof parsed.codeVerifier !== 'string' ||
+        typeof parsed.state !== 'string'
+      ) {
+        return null;
+      }
+      return { codeVerifier: parsed.codeVerifier, state: parsed.state };
+    } catch {
+      return null;
+    }
+  }
+}