AI somewhat added

database/migrations/007_ai_features.sql

@@ -0,0 +1,13 @@
+-- AI Sales Assistant tables
+
+CREATE TABLE IF NOT EXISTS ai_conversations (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    role VARCHAR(20) NOT NULL DEFAULT 'sales',
+    message TEXT NOT NULL,
+    response TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_ai_conversations_user ON ai_conversations(user_id);
+CREATE INDEX IF NOT EXISTS idx_ai_conversations_created ON ai_conversations(created_at DESC);