feat: add follow-up prompts after reveals (batch v1.0.7)

app/src/main/java/app/closer/domain/model/DateSuggestion.kt

@@ -0,0 +1,46 @@
+package app.closer.domain.model
+
+/**
+ * A generated date suggestion surfaced to a couple at a useful moment.
+ *
+ * This model carries only metadata: what activity to suggest, why it was triggered,
+ * and how strongly it should be prioritized. It never contains private answer text.
+ *
+ * @property triggerReason why the suggestion was generated
+ * @property suggestedActivity human-readable activity suggestion
+ * @property priority higher numbers are more urgent/interesting
+ * @property categoryId optional question/date category that informed the suggestion
+ * @property sourceFlags bitmap describing which inputs influenced this suggestion;
+ *                      revealed answers are explicitly tagged as [SourceFlag.REVEALED_ANSWER]
+ *                      and hidden answer text is never used
+ */
+data class DateSuggestion(
+    val triggerReason: DateSuggestionTrigger,
+    val suggestedActivity: String,
+    val priority: Int,
+    val categoryId: String? = null,
+    val sourceFlags: List<SourceFlag> = emptyList()
+) {
+    /**
+     * True when the suggestion was informed by an already-revealed answer.
+     * Used to drive privacy-safe copy and analytics.
+     */
+    val isFromRevealedAnswer: Boolean
+        get() = SourceFlag.REVEALED_ANSWER in sourceFlags
+}
+
+enum class DateSuggestionTrigger {
+    CATEGORY_SURGE,
+    WEEKLY_RECAP_COMPLETED,
+    CHALLENGE_COMPLETED,
+    PARTNER_SAVED_DATE_IDEA,
+    SHARED_INTEREST_REVEALED
+}
+
+enum class SourceFlag {
+    CATEGORY_METADATA,
+    REVEALED_ANSWER,
+    PARTNER_ACTION,
+    CHALLENGE_CONTEXT,
+    RECAP_CONTEXT
+}

app/src/main/java/app/closer/ui/answers/AnswerRevealViewModel.kt

@@ -161,9 +161,12 @@ class AnswerRevealViewModel @Inject constructor(
         val bothRevealed = partnerAnswer?.isRevealed == true
         val options = mutableListOf<FollowUpOption>()
         options += FollowUpOption.DEEPER_FOLLOW_UP
-        options += if (bothRevealed) FollowUpOption.DATE_IDEA else FollowUpOption.SAVE_MEMORY
-        if (category.isNotBlank()) {
-            options += FollowUpOption.ANOTHER_QUESTION
+        options += if (category.isNotBlank()) {
+            FollowUpOption.ANOTHER_QUESTION
+        } else if (bothRevealed) {
+            FollowUpOption.DATE_IDEA
+        } else {
+            FollowUpOption.SAVE_MEMORY
         }
         return options.take(2)
     }