Implemented the weather forecast discussion product from weatherfeeder v0.8.3

internal/adapters/outbound/postgres/discussion_rows.go

@@ -0,0 +1,28 @@
+// discussion_rows.go defines row DTOs for forecast discussion reads.
+// Layer: adapters/outbound/postgres discussion feature.
+package postgres
+
+import (
+	"database/sql"
+	"time"
+)
+
+type discussionParentRow struct {
+	EventID            string
+	OfficeID           sql.NullString
+	OfficeName         sql.NullString
+	IssuedAt           time.Time
+	UpdatedAt          sql.NullTime
+	Product            string
+	ShortTermQualifier sql.NullString
+	ShortTermIssuedAt  sql.NullTime
+	ShortTermText      sql.NullString
+	LongTermQualifier  sql.NullString
+	LongTermIssuedAt   sql.NullTime
+	LongTermText       sql.NullString
+}
+
+type discussionKeyMessageRow struct {
+	MessageIndex int
+	MessageText  sql.NullString
+}