feat: add company settings management and guest registration functionality

src/app/admin/contract-management/components/companySettingsPanel.tsx

@@ -0,0 +1,140 @@
+'use client'
+
+import { useState, useEffect } from 'react'
+import useContractManagement from '../hooks/useContractManagement'
+
+export default function CompanySettingsPanel() {
+  const { getCompanySettings, updateCompanySettings } = useContractManagement()
+
+  const [form, setForm] = useState({
+    company_name: '',
+    company_street: '',
+    company_postal_city: '',
+    company_country: '',
+  })
+  const [loading, setLoading] = useState(true)
+  const [saving, setSaving] = useState(false)
+  const [saved, setSaved] = useState(false)
+
+  useEffect(() => {
+    getCompanySettings()
+      .then(data => {
+        setForm({
+          company_name: data.company_name || '',
+          company_street: data.company_street || '',
+          company_postal_city: data.company_postal_city || '',
+          company_country: data.company_country || '',
+        })
+      })
+      .catch(() => {})
+      .finally(() => setLoading(false))
+  }, [getCompanySettings])
+
+  const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const { name, value } = e.target
+    setForm(prev => ({ ...prev, [name]: value }))
+    setSaved(false)
+  }
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault()
+    setSaving(true)
+    setSaved(false)
+    try {
+      await updateCompanySettings(form)
+      setSaved(true)
+      setTimeout(() => setSaved(false), 3000)
+    } catch {
+      // silent
+    } finally {
+      setSaving(false)
+    }
+  }
+
+  if (loading) {
+    return (
+      <div className="flex items-center gap-2 text-sm text-gray-500 py-4">
+        <div className="animate-spin rounded-full h-4 w-4 border-b-2 border-blue-900" />
+        Loading settings…
+      </div>
+    )
+  }
+
+  return (
+    <form onSubmit={handleSubmit} className="space-y-4">
+      <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+        <div>
+          <label htmlFor="company_name" className="block text-sm font-medium text-gray-700 mb-1">
+            Company Name
+          </label>
+          <input
+            type="text"
+            id="company_name"
+            name="company_name"
+            value={form.company_name}
+            onChange={handleChange}
+            className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+            placeholder="ProfitPlanet GmbH"
+          />
+        </div>
+        <div>
+          <label htmlFor="company_street" className="block text-sm font-medium text-gray-700 mb-1">
+            Street
+          </label>
+          <input
+            type="text"
+            id="company_street"
+            name="company_street"
+            value={form.company_street}
+            onChange={handleChange}
+            className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+            placeholder="Musterstraße 1"
+          />
+        </div>
+        <div>
+          <label htmlFor="company_postal_city" className="block text-sm font-medium text-gray-700 mb-1">
+            Postal Code &amp; City
+          </label>
+          <input
+            type="text"
+            id="company_postal_city"
+            name="company_postal_city"
+            value={form.company_postal_city}
+            onChange={handleChange}
+            className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+            placeholder="12345 Berlin"
+          />
+        </div>
+        <div>
+          <label htmlFor="company_country" className="block text-sm font-medium text-gray-700 mb-1">
+            Country
+          </label>
+          <input
+            type="text"
+            id="company_country"
+            name="company_country"
+            value={form.company_country}
+            onChange={handleChange}
+            className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+            placeholder="Germany"
+          />
+        </div>
+      </div>
+
+      <div className="flex items-center gap-3">
+        <button
+          type="submit"
+          disabled={saving}
+          className={`px-5 py-2 rounded-lg text-sm font-semibold text-white transition-colors ${
+            saving ? 'bg-gray-400 cursor-not-allowed' : 'bg-blue-900 hover:bg-blue-800'
+          }`}
+        >
+          {saving ? 'Saving…' : 'Save'}
+        </button>
+        {saved && (
+          <span className="text-sm text-green-600 font-medium">Saved successfully</span>
+        )}
+      </div>
+    </form>
+  )
+}

src/app/admin/contract-management/hooks/useContractManagement.ts

@@ -444,6 +444,21 @@ export default function useContractManagement() {
     return Array.isArray(data) ? data : [];
   }, [authorizedFetch]);
 
+  // Company settings (invoice address info)
+  const getCompanySettings = useCallback(async () => {
+    return authorizedFetch<{ company_name: string; company_street: string; company_postal_city: string; company_country: string }>(
+      '/api/admin/company-settings', { method: 'GET' }
+    );
+  }, [authorizedFetch]);
+
+  const updateCompanySettings = useCallback(async (data: {
+    company_name: string; company_street: string; company_postal_city: string; company_country: string;
+  }) => {
+    return authorizedFetch<{ company_name: string; company_street: string; company_postal_city: string; company_country: string }>(
+      '/api/admin/company-settings', { method: 'PUT', body: JSON.stringify(data) }
+    );
+  }, [authorizedFetch]);
+
   return {
     // templates
     listTemplates,
@@ -466,6 +481,9 @@ export default function useContractManagement() {
     activateCompanyStamp,
     deactivateCompanyStamp,
     deleteCompanyStamp,
+    // company settings
+    getCompanySettings,
+    updateCompanySettings,
     // utils
     downloadBlobFile,
   };

src/app/admin/contract-management/page.tsx

@@ -4,6 +4,7 @@ import React, { useState, useEffect } from 'react';
 import PageLayout from '../../components/PageLayout';
 import ContractEditor from './components/contractEditor';
 import ContractUploadCompanyStamp from './components/contractUploadCompanyStamp';
+import CompanySettingsPanel from './components/companySettingsPanel';
 import ContractTemplateList from './components/contractTemplateList';
 import useAuthStore from '../../store/authStore';
 import { useRouter } from 'next/navigation';
@@ -98,6 +99,15 @@ export default function ContractManagementPage() {
                   Company Stamp
                 </h2>
                 <ContractUploadCompanyStamp onUploaded={bumpRefresh} />
+
+                <div className="mt-8 pt-6 border-t border-gray-200">
+                  <h3 className="text-lg font-semibold text-blue-900 mb-3 flex items-center gap-2">
+                    <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 21V5a2 2 0 00-2-2H7a2 2 0 00-2 2v16m14 0h2m-2 0h-5m-9 0H3m2 0h5M9 7h1m-1 4h1m4-4h1m-1 4h1m-5 10v-5a1 1 0 011-1h2a1 1 0 011 1v5m-4 0h4" /></svg>
+                    Company Information
+                  </h3>
+                  <p className="text-sm text-gray-500 mb-4">Address details used on invoices.</p>
+                  <CompanySettingsPanel />
+                </div>
               </section>
             )}
             {section === 'templates' && (

src/app/register/components/RegisterForm.tsx

@@ -7,8 +7,8 @@ import { useToast } from '../../components/toast/toastComponent'
 import TelephoneInput, { TelephoneInputHandle } from '../../components/phone/telephoneInput'
 
 interface RegisterFormProps {
-  mode: 'personal' | 'company'
+  mode: 'personal' | 'company' | 'guest'
-  setMode: (mode: 'personal' | 'company') => void
+  setMode: (mode: 'personal' | 'company' | 'guest') => void
   refToken: string | null
   onRegistered: () => void
   referrerEmail?: string
@@ -78,9 +78,19 @@ export default function RegisterForm({
   const contactPhoneRef = useRef<TelephoneInputHandle | null>(null)
 
   // Hook for backend calls
-  const { registerPersonalReferral, registerCompanyReferral, error: regError } = useRegister()
+  const { registerPersonalReferral, registerCompanyReferral, registerGuest, error: regError } = useRegister()
   const { showToast } = useToast()
 
+  // Guest form state
+  const [guestForm, setGuestForm] = useState({
+    firstName: '',
+    lastName: '',
+    email: '',
+    confirmEmail: '',
+    password: '',
+    confirmPassword: '',
+  })
+
   // Animate form when mode changes
   useEffect(() => {
     setFormFade('fade-out')
@@ -351,6 +361,71 @@ export default function RegisterForm({
     setCompanyForm(prev => ({ ...prev, [name]: value }))
   }
 
+  const handleGuestChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const { name, value } = e.target
+    setGuestForm(prev => ({ ...prev, [name]: value }))
+  }
+
+  const validateGuestForm = (): boolean => {
+    if (!guestForm.firstName.trim() || !guestForm.lastName.trim() ||
+        !guestForm.email.trim() || !guestForm.confirmEmail.trim() ||
+        !guestForm.password.trim() || !guestForm.confirmPassword.trim()
+    ) {
+      setError('All fields are required')
+      return false
+    }
+    if (guestForm.email !== guestForm.confirmEmail) {
+      setError('Email addresses do not match')
+      return false
+    }
+    if (guestForm.password !== guestForm.confirmPassword) {
+      setError('Passwords do not match')
+      return false
+    }
+    if (!/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[\W_]).{8,}$/.test(guestForm.password)) {
+      setError('Password must be at least 8 characters long and contain uppercase and lowercase letters, numbers and special characters')
+      return false
+    }
+    setError('')
+    return true
+  }
+
+  const handleGuestSubmit = async (e: React.FormEvent) => {
+    e.preventDefault()
+    if (loading) return
+    if (!validateGuestForm()) return
+
+    setLoading(true)
+    setError('')
+    try {
+      const res = await registerGuest({
+        refToken: refToken || '',
+        firstName: guestForm.firstName,
+        lastName: guestForm.lastName,
+        email: guestForm.email,
+        password: guestForm.password,
+      })
+      if (res.ok) {
+        showToast({
+          variant: 'success',
+          title: 'Registration successful',
+          message: 'You can now log in to view your coffee abonnement.'
+        })
+        onRegistered()
+      } else {
+        const msg = res.message || 'Registration failed. Please try again.'
+        setError(msg)
+        showToast({ variant: 'error', title: 'Registration failed', message: msg })
+      }
+    } catch {
+      const msg = 'Registration failed. Please try again.'
+      setError(msg)
+      showToast({ variant: 'error', title: 'Registration failed', message: msg })
+    } finally {
+      setLoading(false)
+    }
+  }
+
   // Password strength indicator
   const getPasswordStrength = (password: string) => {
     let strength = 0
@@ -408,6 +483,15 @@ export default function RegisterForm({
       {/* Mode Toggle */}
       <div className="flex justify-center mb-8">
         <div className="bg-white/40 backdrop-blur-[18px] border border-white/35 shadow-sm p-1 rounded-lg">
+          {mode === 'guest' ? (
+            <button
+              className="px-6 py-2 rounded-md font-semibold text-sm bg-[#8D6B1D] text-white shadow-sm cursor-default"
+              type="button"
+            >
+              Guest
+            </button>
+          ) : (
+            <>
               <button
                 className={`px-6 py-2 rounded-md font-semibold text-sm transition-all duration-200 ${
                   mode === 'personal'
@@ -430,6 +514,8 @@ export default function RegisterForm({
               >
                 Company
               </button>
+            </>
+          )}
         </div>
       </div>
       
@@ -592,7 +678,7 @@ export default function RegisterForm({
               )}
             </button>
           </form>
-        ) : (
+        ) : mode === 'company' ? (
           <form onSubmit={handleCompanySubmit} className="space-y-6">
             <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
               <div>
@@ -764,6 +850,140 @@ export default function RegisterForm({
               )}
             </button>
           </form>
+        ) : (
+          <form onSubmit={handleGuestSubmit} className="space-y-6">
+            <div className="p-4 bg-amber-50/70 backdrop-blur-[18px] border border-amber-200/70 rounded-lg mb-2">
+              <p className="text-amber-800 text-sm font-medium">
+                You are registering as a guest. You will have access to your coffee abonnements only.
+              </p>
+            </div>
+
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+              <div>
+                <label htmlFor="guestFirstName" className="block text-sm font-medium text-[#0F172A] mb-2">
+                  First name *
+                </label>
+                <input
+                  type="text"
+                  id="guestFirstName"
+                  name="firstName"
+                  value={guestForm.firstName}
+                  onChange={handleGuestChange}
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg bg-white/60 focus:ring-2 focus:ring-[#8D6B1D] focus:border-transparent transition-colors text-primary"
+                  required
+                />
+              </div>
+              <div>
+                <label htmlFor="guestLastName" className="block text-sm font-medium text-[#0F172A] mb-2">
+                  Last name *
+                </label>
+                <input
+                  type="text"
+                  id="guestLastName"
+                  name="lastName"
+                  value={guestForm.lastName}
+                  onChange={handleGuestChange}
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg bg-white/60 focus:ring-2 focus:ring-[#8D6B1D] focus:border-transparent transition-colors text-primary"
+                  required
+                />
+              </div>
+            </div>
+
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+              <div>
+                <label htmlFor="guestEmail" className="block text-sm font-medium text-[#0F172A] mb-2">
+                  Email *
+                </label>
+                <input
+                  type="email"
+                  id="guestEmail"
+                  name="email"
+                  value={guestForm.email}
+                  onChange={handleGuestChange}
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg bg-white/60 focus:ring-2 focus:ring-[#8D6B1D] focus:border-transparent transition-colors text-primary"
+                  required
+                />
+              </div>
+              <div>
+                <label htmlFor="guestConfirmEmail" className="block text-sm font-medium text-[#0F172A] mb-2">
+                  Confirm email *
+                </label>
+                <input
+                  type="email"
+                  id="guestConfirmEmail"
+                  name="confirmEmail"
+                  value={guestForm.confirmEmail}
+                  onChange={handleGuestChange}
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg bg-white/60 focus:ring-2 focus:ring-[#8D6B1D] focus:border-transparent transition-colors text-primary"
+                  required
+                />
+              </div>
+            </div>
+
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+              <div>
+                <label htmlFor="guestPassword" className="block text-sm font-medium text-[#0F172A] mb-2">
+                  Password *
+                </label>
+                <div className="relative">
+                  <input
+                    type={showPersonalPassword ? 'text' : 'password'}
+                    id="guestPassword"
+                    name="password"
+                    value={guestForm.password}
+                    onChange={handleGuestChange}
+                    className="w-full px-3 py-2 border border-gray-300 rounded-lg bg-white/60 focus:ring-2 focus:ring-[#8D6B1D] focus:border-transparent transition-colors text-primary pr-10"
+                    required
+                  />
+                  <button
+                    type="button"
+                    onClick={() => setShowPersonalPassword(!showPersonalPassword)}
+                    className="absolute inset-y-0 right-0 px-3 flex items-center text-slate-500 hover:text-[#8D6B1D]"
+                  >
+                    {showPersonalPassword ? (
+                      <EyeSlashIcon className="h-5 w-5" />
+                    ) : (
+                      <EyeIcon className="h-5 w-5" />
+                    )}
+                  </button>
+                </div>
+                {guestForm.password && renderPasswordStrength(guestForm.password)}
+              </div>
+              <div>
+                <label htmlFor="guestConfirmPassword" className="block text-sm font-medium text-[#0F172A] mb-2">
+                  Confirm password *
+                </label>
+                <input
+                  type="password"
+                  id="guestConfirmPassword"
+                  name="confirmPassword"
+                  value={guestForm.confirmPassword}
+                  onChange={handleGuestChange}
+                  className="w-full px-3 py-2 border border-gray-300 rounded-lg bg-white/60 focus:ring-2 focus:ring-[#8D6B1D] focus:border-transparent transition-colors text-primary"
+                  required
+                />
+              </div>
+            </div>
+
+            <button
+              type="submit"
+              disabled={loading}
+              className={`w-full flex items-center justify-center py-3 px-4 rounded-lg text-white font-semibold transition-colors ${
+                loading
+                  ? 'bg-gray-400 cursor-not-allowed'
+                  : 'bg-[#8D6B1D] hover:bg-[#7A5E1A] focus:ring-2 focus:ring-[#8D6B1D] focus:ring-offset-2'
+              }`}
+            >
+              {loading ? (
+                <>
+                  <div className="animate-spin rounded-full h-4 w-4 border-b-2 border-white mr-2"></div>
+                  Registration in progress...
+                </>
+              ) : (
+                'Register as Guest'
+              )}
+            </button>
+          </form>
         )}
       </div>
       

src/app/register/hooks/useRegister.ts

@@ -23,6 +23,15 @@ export type CompanyReferralPayload = {
   lang?: 'de' | 'en'
 }
 
+export type GuestReferralPayload = {
+  refToken: string
+  firstName: string
+  lastName: string
+  email: string
+  password: string
+  lang?: 'de' | 'en'
+}
+
 type RegisterResult<T = any> = {
   ok: boolean
   status: number
@@ -144,11 +153,69 @@ export function useRegister() {
     }
   }
 
+  const registerGuest = async (payload: GuestReferralPayload): Promise<RegisterResult> => {
+    setError('')
+    setLoading(true)
+
+    const body = {
+      firstName: payload.firstName,
+      lastName: payload.lastName,
+      email: payload.email,
+      confirmEmail: payload.email,
+      password: payload.password,
+      confirmPassword: payload.password,
+      referralEmail: undefined as string | undefined,
+      lang: payload.lang || detectLang(),
+    }
+
+    // Try to resolve referral email from token
+    if (payload.refToken) {
+      try {
+        const infoRes = await fetch(`${base}/api/referral/info/${encodeURIComponent(payload.refToken)}`, {
+          method: 'GET',
+          credentials: 'include',
+        })
+        const infoJson = await infoRes.json().catch(() => null)
+        if (infoJson?.referrerEmail) {
+          body.referralEmail = infoJson.referrerEmail
+        }
+      } catch {}
+    }
+
+    const url = `${base}/api/register/guest`
+    console.log('🌐 useRegister: POST guest', { url })
+
+    try {
+      const res = await fetch(url, {
+        method: 'POST',
+        credentials: 'include',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(body),
+      })
+      const json = await res.json().catch(() => null)
+      console.log('📡 useRegister: guest status:', res.status, 'body:', json)
+      if (!res.ok) {
+        const msg = json?.message || mapError(res.status)
+        setError(msg)
+        return { ok: false, status: res.status, data: json, message: msg }
+      }
+      return { ok: true, status: res.status, data: json, message: json?.message }
+    } catch (e) {
+      console.error('❌ useRegister: guest error:', e)
+      const msg = 'Network error. Please try again later.'
+      setError(msg)
+      return { ok: false, status: 0, data: null, message: msg }
+    } finally {
+      setLoading(false)
+    }
+  }
+
   return {
     loading,
     error,
     setError,
     registerPersonalReferral,
     registerCompanyReferral,
+    registerGuest,
   }
 }

src/app/register/page.tsx

@@ -15,8 +15,9 @@ import BlueBlurryBackground from '../components/background/blueblurry' // NEW
 function RegisterPageInner() {
   const searchParams = useSearchParams()
   const refToken = searchParams.get('ref')
+  const isGuestInvite = searchParams.get('guest') === 'true'
   const [registered, setRegistered] = useState(false)
-  const [mode, setMode] = useState<'personal' | 'company'>('personal')
+  const [mode, setMode] = useState<'personal' | 'company' | 'guest'>(isGuestInvite ? 'guest' : 'personal')
   const router = useRouter()
   const { showToast } = useToast()
 
@@ -71,6 +72,8 @@ function RegisterPageInner() {
         const res = await fetch(url, { method: 'GET', credentials: 'include' })
         const body = await res.json().catch(() => null)
 
+        console.log('[REGISTER] Token validation response:', { status: res.status, body })
+
         const success = !!body?.success
         const isUnlimited = !!body?.isUnlimited
         const usesRemaining =
@@ -92,16 +95,18 @@ function RegisterPageInner() {
               message: 'Your invitation link is valid. You can register now.'
             })
           } else {
+            const reason = body?.reason || `HTTP ${res.status}`
             setInvalidRef(true)
             showToast({
               variant: 'error',
               title: 'Invalid invitation',
-              message: 'This invitation link is invalid or no longer active.'
+              message: `Reason: ${reason}. This invitation link is invalid or no longer active.`
             })
           }
           setIsRefChecked(true)
         }
-      } catch {
+      } catch (err) {
+        console.error('[REGISTER] Token validation network error:', err)
         if (!cancelled) {
           setInvalidRef(true)
           setIsRefChecked(true)
@@ -109,7 +114,7 @@ function RegisterPageInner() {
         showToast({
           variant: 'error',
           title: 'Network error',
-          message: 'Could not validate the invitation link. Please try again.'
+          message: 'Could not reach the server. Is the backend running?'
         })
       }
     }
@@ -277,10 +282,12 @@ function RegisterPageInner() {
               <div className="relative">
                 <div className="mx-auto max-w-2xl text-center mb-8">
                   <h1 className="text-3xl sm:text-4xl font-extrabold tracking-tight text-[#0F172A]">
-                    Register now
+                    {mode === 'guest' ? 'Guest Registration' : 'Register now'}
                   </h1>
                   <p className="mt-3 text-slate-700 text-base sm:text-lg">
-                    Create your personal or company account with Profit Planet.
+                    {mode === 'guest'
+                      ? 'Register as a guest to access your coffee abonnement.'
+                      : 'Create your personal or company account with Profit Planet.'}
                   </p>
                 </div>