feat(telegram): add prompt-context table for mood-note correlation

Add TelegramPromptContext (migration 0187) mapping a bot force-reply
prompt to the entry a free-text reply attaches to, keyed on
(chatId, promptMsgId) and scoped to the owning user. MoodEntry.source
already accepts the free-text TELEGRAM value, so no enum change is
needed.

prisma/migrations/0187_v1190_telegram_prompt_context/migration.sql

@@ -0,0 +1,20 @@
+-- v1.19.0 — force-reply correlation for the interactive mood reminder.
+-- Maps a bot prompt message to the entry a free-text reply attaches to.
+CREATE TABLE "telegram_prompt_contexts" (
+    "id" TEXT NOT NULL,
+    "user_id" TEXT NOT NULL,
+    "chat_id" TEXT NOT NULL,
+    "prompt_msg_id" INTEGER NOT NULL,
+    "kind" TEXT NOT NULL,
+    "ref_id" TEXT NOT NULL,
+    "expires_at" TIMESTAMP(3) NOT NULL,
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "telegram_prompt_contexts_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "telegram_prompt_contexts_chat_id_prompt_msg_id_key" ON "telegram_prompt_contexts"("chat_id", "prompt_msg_id");
+
+-- CreateIndex
+CREATE INDEX "telegram_prompt_contexts_expires_at_idx" ON "telegram_prompt_contexts"("expires_at");

prisma/schema.prisma

@@ -2262,6 +2262,33 @@ model TelegramScheduledDeletion {
   @@map("telegram_scheduled_deletions")
 }
 
+// v1.19.0 — force-reply correlation for the interactive mood reminder.
+//
+// When a user taps "Notiz…" on a mood prompt the bot sends a force_reply
+// message; the user's free-text reply then arrives as a normal `message`
+// whose `reply_to_message.message_id` points back at that prompt. This
+// row maps `(chatId, promptMessageId)` to the mood entry the note should
+// attach to, so the inbound note handler can resolve "what was this a
+// reply to" without trusting any client-supplied id. Rows are short-lived
+// (`expiresAt`) and best-effort deleted once consumed; the deletion sweep
+// is keyed on `expiresAt` so an unanswered note prompt self-cleans.
+model TelegramPromptContext {
+  id          String   @id @default(cuid())
+  userId      String   @map("user_id")
+  chatId      String   @map("chat_id")
+  // The bot's prompt message the user is expected to reply to.
+  promptMsgId Int      @map("prompt_msg_id")
+  // What the reply attaches to. "mood_note" carries `refId = moodEntryId`.
+  kind        String
+  refId       String   @map("ref_id")
+  expiresAt   DateTime @map("expires_at")
+  createdAt   DateTime @default(now()) @map("created_at")
+
+  @@unique([chatId, promptMsgId])
+  @@index([expiresAt])
+  @@map("telegram_prompt_contexts")
+}
+
 // ─── API Tokens (for external ingest) ──────────────────────
 
 model ApiToken {