multi tenancy part 1

backend/migrations/20240902000123_create_tenants/down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS public.tenants;

backend/migrations/20240902000123_create_tenants/up.sql

@@ -0,0 +1,10 @@
+CREATE TABLE public.tenants (
+    tenant_id UUID PRIMARY KEY,
+    slug TEXT NOT NULL UNIQUE,
+    storage_root TEXT,
+    quickwit_index TEXT,
+    status TEXT NOT NULL DEFAULT 'active',
+    config JSONB NOT NULL DEFAULT '{}'::jsonb,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);