feat(core): add secure recipe APIs, precise scaling and versioned imports

migrations/0001_initial.sql

@@ -0,0 +1,14 @@
+CREATE TABLE recipes (
+  id uuid PRIMARY KEY DEFAULT gen_random_uuid(), title text NOT NULL,
+  title_key text NOT NULL UNIQUE, published boolean NOT NULL DEFAULT false,
+  data jsonb NOT NULL, created_at timestamptz NOT NULL DEFAULT now(), updated_at timestamptz NOT NULL DEFAULT now()
+);
+CREATE INDEX recipes_published_created ON recipes (published, created_at DESC);
+CREATE INDEX recipes_data ON recipes USING gin (data);
+CREATE TABLE admins (id uuid PRIMARY KEY DEFAULT gen_random_uuid(), username text NOT NULL UNIQUE, password text NOT NULL);
+CREATE TABLE sessions (token text PRIMARY KEY, admin_id uuid NOT NULL REFERENCES admins(id) ON DELETE CASCADE, expires timestamptz NOT NULL);
+CREATE INDEX sessions_expires ON sessions (expires);
+CREATE TABLE login_limits (key text PRIMARY KEY, count integer NOT NULL, reset timestamptz NOT NULL);
+CREATE TABLE settings (key text PRIMARY KEY, value jsonb NOT NULL);
+INSERT INTO settings VALUES ('categories', '["Alltagsküche", "Vegetarisch", "Für Gäste", "Süßes"]'), ('tags', '["Schnell", "Familienliebling", "Meal Prep"]'), ('household', '"Unsere Küche"');
+CREATE TABLE media (name text PRIMARY KEY, created_at timestamptz NOT NULL DEFAULT now());