Add named reminders with multiple times and day schedules

README.md

@@ -379,27 +379,39 @@ existing delivery does not consume quota. Rejected attempts consume quota too;
 An empty list permits all signed-in accounts. Restricted users can still preview
 and download PNGs. Quota rows expire and are pruned after 24 hours.
 
-### Daily reminders
+### Reminders
 
-Open **Settings → Daily reminders** to opt into one private Discord DM when habits
-remain unfinished. Choose a local time and quiet hours; times follow the account
-timezone. Quiet-hour start is inclusive, end is exclusive, and equal times disable
-quiet hours. If the scheduled time falls in quiet hours, delivery waits until they
-end that same local day. A reminder missed for the whole day is not carried forward.
+Open **Settings → Reminders** to configure up to 20 reminders, each with an optional
+name (up to 80 characters), local time, and selected weekdays or a specific date.
+Select all seven days for a daily reminder. Discord messages include any reminder names that were set, along with the
+unfinished-habit count and app link. Combined nudges include the applicable names. Reminders
+only send when habits remain unfinished, and times follow the account timezone.
+
+Quiet-hour start is inclusive, end is exclusive, and equal times disable quiet
+hours. Overdue reminders are combined into one nudge when quiet hours end or the
+server resumes, then later scheduled times continue normally. Overlapping entries
+at the same time produce one nudge. Missed reminders never carry into another day.
+Editing a name or removing and re-adding a time does not resend an already delivered
+slot that day; adding a past time can trigger a nudge on the next worker tick.
 
 The production server checks once a minute. `DISCORD_BOT_TOKEN` enables delivery;
-a sharing channel is not required for reminders. Users must be reachable by the
-bot (normally a shared Discord server and enabled DMs). A message contains only
-the unfinished-habit count and app link. Settings show the most recent delivery
-result, including blocked DMs or unconfirmed delivery. Uncheck the option and save
-to opt out. No reminders are enabled by default.
+a sharing channel is not required. Users must be reachable by the bot (normally a
+shared Discord server and enabled DMs). Settings show the most recent delivery
+result. Uncheck the option and save to opt out. Reminders are disabled by default.
 
 `GET /api/reminders` returns settings and last delivery status. `PUT /api/reminders`
-requires authentication, matching Origin, and `{enabled, time, quietStart, quietEnd}`
-with `HH:MM` times. Per-user/date reservations persist across restarts and concurrent
-workers. Discord 429 retry deadlines are persisted; ambiguous message sends are
-not retried that day. Delivery records expire after 90 days. Restore disables
-reminders in the recovered database until users opt in again.
+requires authentication, matching Origin, and `{enabled, reminders, quietStart,
+quietEnd}`. Times use `HH:MM`. Each reminder is either
+`{type: "weekly", name?: string, time: "09:00", days: [1, 3, 5]}` (Sunday is 0) or
+`{type: "date", name?: string, time: "18:00", date: "2026-09-08"}`.
+The legacy single `time` input remains supported. Existing settings retain their
+daily schedule; pre-upgrade deliveries prevent another nudge that same day.
+
+Per-user/date/time reservations persist across restarts and concurrent workers.
+Discord 429 retry deadlines are persisted; ambiguous sends are not retried for
+that time slot. Later reminders can still send. Delivery records expire after
+90 days. Account export includes schedules and names; restore disables reminders
+until users opt in again.
 
 The disposable `SHARE_PREVIEW=1 bun scripts/dashboard-preview.ts` mode also runs a
 reminder worker against a local transport stub. Set a reminder to `14:00` (its fixed