second commit

internal/model/article_embedding.go

@@ -0,0 +1,18 @@
+package model
+
+import (
+	"encoding/json"
+)
+
+// ArticleEmbedding stores vector embeddings for semantic article search.
+// Reference: Chatwoot ArticleEmbedding (enterprise) + P2B M9 spec
+type ArticleEmbedding struct {
+	Base
+	ArticleID uint            `gorm:"not null;index" json:"article_id"`
+	Embedding json.RawMessage `gorm:"type:jsonb" json:"embedding"` // vector data (1536-dim, stored as JSON for portability)
+	Term      string          `gorm:"type:text;not null" json:"term"` // searchable text content
+
+	Article Article `gorm:"foreignKey:ArticleID" json:"article,omitempty"`
+}
+
+func (ArticleEmbedding) TableName() string { return "article_embeddings" }