feat: add recipes module with CRUD functionality and integrate with meals

- Implemented new recipes page with UI for managing recipes.
- Added REST API routes for recipes including create, read, update, and delete operations.
- Introduced database schema for recipes and recipe ingredients.
- Updated meals to link with recipes, allowing meals to reference specific recipes.
- Enhanced validation for recipe-related fields in meals.
- Added styles for the recipes page and components.

server/db.js

@@ -484,6 +484,45 @@ const MIGRATIONS = [
         ON calendar_events (subscription_id, external_calendar_id);
     `,
   },
+  {
+    version: 13,
+    description: 'Rezepte-Tabelle und Mahlzeiten-Verknuepfung',
+    up: `
+      CREATE TABLE IF NOT EXISTS recipes (
+        id         INTEGER PRIMARY KEY AUTOINCREMENT,
+        title      TEXT    NOT NULL,
+        notes      TEXT,
+        recipe_url TEXT,
+        created_by INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+        created_at TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+        updated_at TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
+      );
+
+      CREATE TABLE IF NOT EXISTS recipe_ingredients (
+        id         INTEGER PRIMARY KEY AUTOINCREMENT,
+        recipe_id  INTEGER NOT NULL REFERENCES recipes(id) ON DELETE CASCADE,
+        name       TEXT    NOT NULL,
+        quantity   TEXT,
+        category   TEXT    NOT NULL DEFAULT 'Sonstiges',
+        created_at TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+        updated_at TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
+      );
+
+      CREATE INDEX IF NOT EXISTS idx_recipes_title ON recipes(title);
+      CREATE INDEX IF NOT EXISTS idx_recipe_ingredients_recipe ON recipe_ingredients(recipe_id);
+
+      CREATE TRIGGER IF NOT EXISTS trg_recipes_updated_at
+        AFTER UPDATE ON recipes FOR EACH ROW
+        BEGIN UPDATE recipes SET updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now') WHERE id = OLD.id; END;
+
+      CREATE TRIGGER IF NOT EXISTS trg_recipe_ingredients_updated_at
+        AFTER UPDATE ON recipe_ingredients FOR EACH ROW
+        BEGIN UPDATE recipe_ingredients SET updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now') WHERE id = OLD.id; END;
+
+      ALTER TABLE meals ADD COLUMN recipe_id INTEGER REFERENCES recipes(id) ON DELETE SET NULL;
+      CREATE INDEX IF NOT EXISTS idx_meals_recipe_id ON meals(recipe_id);
+    `,
+  },
 ];
 
 /**