feat: ✨ comment routing

migrations/20241204225151_create_comment_table.up.sql

@@ -1,7 +1,7 @@
 -- Add up migration script here
 CREATE TABLE IF NOT EXISTS "comment"(
-    post_creation_time TIMESTAMPTZ NOT NULL REFERENCES "post"(creation_time),
     creation_time TIMESTAMPTZ PRIMARY KEY NOT NULL UNIQUE DEFAULT NOW(),
+    post_creation_time TIMESTAMPTZ NOT NULL REFERENCES "post"(creation_time),
     user_id BIGSERIAL NOT NULL REFERENCES "user"(id),
     comment VARCHAR NOT NULL
 );