Add embedding columns for tasks and tickets

sqls/01_user_auth_schema.sql

@@ -1,5 +1,7 @@
 -- Installs uuid-ossp extension for UUID generation
 CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+CREATE EXTENSION IF NOT EXISTS vector;
+
 
 -- Create teams table
 CREATE TABLE teams (

sqls/03_task_schema.sql

@@ -3,6 +3,7 @@ CREATE TABLE tasks (
   id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
   title TEXT NOT NULL,
   description TEXT,
+  description_embedding vector(768),
   status TEXT NOT NULL CHECK (status IN ('todo', 'in_progress', 'completed')),
   approval_status TEXT NOT NULL DEFAULT 'pending' CHECK (approval_status IN ('pending', 'approved', 'rejected')),
   created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),

sqls/04_tickets_schema.sql

@@ -4,6 +4,7 @@ CREATE TABLE tickets (
     ticket_number TEXT NOT NULL,
     title TEXT NOT NULL,
     description TEXT,
+    description_embedding vector(768),
     priority TEXT NOT NULL CHECK (priority IN ('low', 'medium', 'high')),
     category TEXT NOT NULL,
     status TEXT NOT NULL DEFAULT 'open' CHECK (status IN ('open', 'in_progress', 'resolved')),