cleanup: remove assigned_agent_id column from csat responses table.

internal/csat/models/models.go

@@ -14,7 +14,6 @@ type CSATResponse struct {
 	CreatedAt         time.Time   `db:"created_at"`
 	UpdatedAt         time.Time   `db:"updated_at"`
 	ConversationID    int         `db:"conversation_id"`
-	AssignedAgentID   int         `db:"assigned_agent_id"`
 	Score             int         `db:"rating"`
 	Feedback          null.String `db:"feedback"`
 	ResponseTimestamp null.Time   `db:"response_timestamp"`

internal/csat/queries.sql

@@ -1,9 +1,8 @@
 -- name: insert
 INSERT INTO csat_responses (
-        conversation_id,
-        assigned_agent_id
+        conversation_id
     )
-VALUES ($1, $2)
+VALUES ($1)
 RETURNING uuid;
 
 -- name: get
@@ -12,7 +11,6 @@ SELECT id,
     created_at,
     updated_at,
     conversation_id,
-    assigned_agent_id,
     rating,
     feedback,
     response_timestamp

schema.sql

@@ -379,7 +379,6 @@ CREATE TABLE csat_responses (
 
 	-- Keep CSAT responses even if the conversation or agent is deleted.
     conversation_id BIGINT REFERENCES conversations(id) ON DELETE SET NULL ON UPDATE CASCADE NOT NULL,
-    assigned_agent_id BIGINT REFERENCES users(id) ON DELETE SET NULL ON UPDATE CASCADE NOT NULL,
 
     rating INT DEFAULT 0 NOT NULL,
     feedback TEXT NULL,