feat(recipe-generation): scale-batch.ts för Fas A Steg 2 (~200 verified)

- 8 batchar om ~27 recept = ~216 mål
- Budgetguard med pause vid 90 %
- DB-dedup mot recipes.titleSv + session-dedup
- Seed verified till staging DB (recipes, recipeIngredients, recipeSteps)
- Stickprov ~15 % per batch med flaggning
- scale-batch.sh wrapper för Node IPv4-workaround
- Lade till ./client export i @app/database
- Lade till dotenv i @app/recipe-generation deps

Relaterat till docs/32-receptkatalog-buildout.md

packages/recipe-generation/package.json

@@ -21,6 +21,7 @@
     "@app/nutrition-engine": "workspace:*",
     "@app/recipe-engine": "workspace:*",
     "@app/shared-types": "workspace:*",
+    "dotenv": "^16.4.0",
     "drizzle-orm": "^0.41.0",
     "zod": "^4.4.0"
   },