Add Partner/Firmen links, migration for companies and partner relationship

shop/app/admin/layout.tsx

@@ -58,6 +58,14 @@ export default async function AdminLayout({
             <Users className="w-5 h-5" />
             Benutzer
           </Link>
+          <Link href="/admin/partners" className="flex items-center gap-3 px-3 py-2 rounded-lg text-slate-400 hover:text-white hover:bg-white/5 transition-all">
+            <Building2 className="w-5 h-5" />
+            Partner
+          </Link>
+          <Link href="/admin/companies" className="flex items-center gap-3 px-3 py-2 rounded-lg text-slate-400 hover:text-white hover:bg-white/5 transition-all">
+            <Building2 className="w-5 h-5" />
+            Firmen
+          </Link>
 
           <div className="pt-2 pb-1 px-3">
             <span className="text-[10px] font-semibold uppercase tracking-wider text-slate-600">Einstellungen</span>

shop/supabase/migrations/20260624100000_create_companies_table.sql

@@ -1,31 +1,51 @@
--- Migration: companies table + company_id in users
+-- Migration: companies and partners tables with relationships
 
--- 1. Tabelle companies erstellen
-CREATE TABLE IF NOT EXISTS public.partners (
+-- 1. Create companies table
+CREATE TABLE IF NOT EXISTS public.companies (
   id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
   name       TEXT NOT NULL,
   created_at TIMESTAMPTZ NOT NULL DEFAULT now()
 );
 
--- RLS aktivieren
+-- 2. Create partners table with optional company reference
+CREATE TABLE IF NOT EXISTS public.partners (
+  id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  name       TEXT NOT NULL,
+  company_id UUID REFERENCES public.companies(id) ON DELETE SET NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+-- Enable RLS on both tables
 ALTER TABLE public.companies ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.partners ENABLE ROW LEVEL SECURITY;
 
--- Policies
-DROP POLICY IF EXISTS "Admins und Partner lesen Partner" ON public.partners;
-DROP POLICY IF EXISTS "Service role kann alles" ON public.partners;
+-- Policies for companies
+DROP POLICY IF EXISTS "Admins und Unternehmen lesen" ON public.companies;
+CREATE POLICY "Admins und Unternehmen lesen"
+  ON public.companies FOR SELECT
+  USING (auth.role() = 'authenticated');
 
-CREATE POLICY "Admins und Partner lesen Partner"
+DROP POLICY IF EXISTS "Service role kann alles Unternehmen" ON public.companies;
+CREATE POLICY "Service role kann alles Unternehmen"
+  ON public.companies FOR ALL
+  USING (true)
+  WITH CHECK (true);
+
+-- Policies for partners
+DROP POLICY IF EXISTS "Admins und Partner lesen" ON public.partners;
+CREATE POLICY "Admins und Partner lesen"
   ON public.partners FOR SELECT
   USING (auth.role() = 'authenticated');
 
-CREATE POLICY "Service role kann alles"
+DROP POLICY IF EXISTS "Service role kann alles Partner" ON public.partners;
+CREATE POLICY "Service role kann alles Partner"
   ON public.partners FOR ALL
   USING (true)
   WITH CHECK (true);
 
--- 2. company_id zu public.users hinzufügen
+-- 3. Add company_id to users (instead of partner_id)
 ALTER TABLE public.users
-  ADD COLUMN IF NOT EXISTS partner_id UUID REFERENCES public.partners(id) ON DELETE SET NULL;
+  ADD COLUMN IF NOT EXISTS company_id UUID REFERENCES public.companies(id) ON DELETE SET NULL;
 
--- Reload Schema Cache
+-- Reload schema cache
 NOTIFY pgrst, 'reload schema';