Consolidate duplicated page CSS into app.css, share TestDb type

- Move .page-header/.back-link/.input-invalid/.save-status/.btn-done
  (plus hover/variant rules) into app.css as shared route scaffolding;
  delete per-page scoped copies
- Unify drifted values: page-header padding 1rem -> 1.25rem (routine
  page), empty-state spacing 0.75/1.5rem -> 1/2rem (grocery detail),
  save-status margin -0.25rem applied on both pages, back-link margin
  1.5rem -> 1rem (grocery detail); routine page's large Fait button is
  kept via a .btn-done-lg modifier
- Export TestDb from test-helper and use it in the five db/service
  test files to shrink duplicated fixture scaffolding

1 files changed, 0 insertions, 37 deletions

diff --git a/src/routes/grocery/[id]/+page.svelte b/src/routes/grocery/[id]/+page.svelte
index 531fbf7..4a96f32 100644
--- a/src/routes/grocery/[id]/+page.svelte
+++ b/src/routes/grocery/[id]/+page.svelte
@@ -214,33 +214,12 @@
 		margin-bottom: 0.5rem;
 	}
 
-	.empty {
-		margin-top: 0.75rem;
-		padding: 1.5rem;
-	}
-
 	hr {
 		border: none;
 		border-top: 1.5px solid var(--border);
 		margin: 1.5rem 0;
 	}
 
-	.back-link {
-		display: inline-flex;
-		align-items: center;
-		gap: 0.375rem;
-		margin-top: 1.5rem;
-		color: var(--text-secondary);
-		text-decoration: none;
-		font-size: 0.875rem;
-		font-weight: 500;
-		transition: color 0.2s;
-	}
-
-	.back-link:hover {
-		color: var(--accent);
-	}
-
 	.delete-item-btn {
 		margin-top: 1.5rem;
 		padding: 0.625rem 1.25rem;
@@ -258,20 +237,4 @@
 		background: var(--danger-bg);
 		transform: translateY(-1px);
 	}
-
-	.save-status {
-		font-size: 0.875rem;
-		color: var(--success);
-		font-weight: 500;
-		margin-top: -0.25rem;
-		visibility: hidden;
-		opacity: 0;
-		transition: opacity 0.2s ease;
-		min-height: 1.25rem;
-	}
-
-	.save-status.visible {
-		visibility: visible;
-		opacity: 1;
-	}
 </style>