Описание изменений

backend/migrations/init.sql

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+-- Создаем расширение для векторов
+CREATE EXTENSION IF NOT EXISTS vector;
+
+-- Создаем таблицу пользователей
+CREATE TABLE IF NOT EXISTS users (
+    id SERIAL PRIMARY KEY,
+    address VARCHAR(42) UNIQUE NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Создаем таблицу документов
+DROP TABLE IF EXISTS documents;
+CREATE TABLE documents (
+    id bigserial PRIMARY KEY,
+    content text,
+    metadata jsonb,
+    embedding vector(4096)
+);
+
+-- Создаем таблицу истории чата
+CREATE TABLE IF NOT EXISTS chat_history (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER REFERENCES users(id),
+    message TEXT NOT NULL,
+    response TEXT NOT NULL,
+    context_docs INTEGER[],
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Даем права пользователю
+GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO postgres;
+GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO postgres;