Migrate date handling from Date to Temporal API

Routine scheduling, health series, service stamps, session expiry, and
date formatting move to native Temporal (Instant / ZonedDateTime in
UTC), with ISO strings kept at DB and chart boundaries. Ambient types
in src/temporal-ambient.d.ts cover the native runtime; no polyfill.
Observable behavior and stored formats are unchanged.

1 files changed, 15 insertions, 5 deletions

diff --git a/src/lib/server/services/groceries.test.ts b/src/lib/server/services/groceries.test.ts
index a704b57..4d9aa2f 100644
--- a/src/lib/server/services/groceries.test.ts
+++ b/src/lib/server/services/groceries.test.ts
@@ -18,7 +18,9 @@ describe('groceries service', () => {
 	});
 
 	it('loadUnchecked returns only unchecked items', async () => {
-		const now = new Date().toISOString();
+		const now = Temporal.Now.instant().toString({
+			smallestUnit: 'millisecond',
+		});
 		await db.insert(groceries).values([
 			{ name: 'milk', checked: false, createdAt: now },
 			{ name: 'bread', checked: true, createdAt: now },
@@ -30,7 +32,9 @@ describe('groceries service', () => {
 	});
 
 	it('loadAll returns all items', async () => {
-		const now = new Date().toISOString();
+		const now = Temporal.Now.instant().toString({
+			smallestUnit: 'millisecond',
+		});
 		await db.insert(groceries).values([
 			{ name: 'milk', checked: false, createdAt: now },
 			{ name: 'bread', checked: true, createdAt: now },
@@ -41,7 +45,9 @@ describe('groceries service', () => {
 	});
 
 	it('toggle flips checked state', async () => {
-		const now = new Date().toISOString();
+		const now = Temporal.Now.instant().toString({
+			smallestUnit: 'millisecond',
+		});
 		await db
 			.insert(groceries)
 			.values({ name: 'milk', checked: false, createdAt: now });
@@ -67,7 +73,9 @@ describe('groceries service', () => {
 	});
 
 	it('addOrUncheck unchecks an existing checked item', async () => {
-		const now = new Date().toISOString();
+		const now = Temporal.Now.instant().toString({
+			smallestUnit: 'millisecond',
+		});
 		await db
 			.insert(groceries)
 			.values({ name: 'milk', checked: true, createdAt: now });
@@ -83,7 +91,9 @@ describe('groceries service', () => {
 	});
 
 	it('deleteGrocery removes the item', async () => {
-		const now = new Date().toISOString();
+		const now = Temporal.Now.instant().toString({
+			smallestUnit: 'millisecond',
+		});
 		await db
 			.insert(groceries)
 			.values({ name: 'milk', checked: false, createdAt: now });