Task 36c40130-a69a-46ed-a047-2cdc5ee2d2e0 (Feature 23, task 1 of 2). A backfill_dinner_photos job grounds, by name with the existing recipes.Grounder.Ground, every unarchived dinner whose grounding failed and that has no photo and no pasted recipe_url. Ground already tries the ranked candidates best first and keeps the first whose photo caches and whose ingredients normalize, reusing stored recipes and photos. Success records the recipe and photo as grounded; a failure leaves the dinner failed with the new grounding_error for the fix-recipe flow, without stopping its siblings. Writes are guarded on status, photo and grounding_revision, so grounded, manual, pending, renamed and archived dinners are never touched. POST /api/v1/settings/photo-backfill starts a full pass and answers 202 with the job id; the kind is service-only. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>