Make summary id autoincrease and enlarge api_endpoint (#206)

- Make summary `id` autoincrease 
- Enlarge `api_endpoint`

src/app/api/ai/summary/route.ts

@@ -58,7 +58,7 @@ export const GET = async (req: NextRequest) => {
       break
     }
   }
-  await sql`create table if not exists summary (id int NOT NULL PRIMARY KEY, api_endpoint varchar(30), summary text, lang varchar(10), modified varchar(30), cid varchar(40))`
+  await sql`create table if not exists summary (id SERIAL PRIMARY KEY, api_endpoint varchar(50), summary text, lang varchar(10), modified varchar(30), cid varchar(40))`
 
   const sqlResult =
     await sql`select * from summary where lang = ${lang} and api_endpoint = ${API_URL} and modified = ${modified} and cid = ${cid}`