feat: ✨ post_interaction routing

migrations/20241204230240_create_post_interaction_table.up.sql

@@ -1,7 +1,7 @@
 -- Add up migration script here
 CREATE TABLE IF NOT EXISTS "post_interaction"(
+    interaction_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),
-    interaction_id BIGSERIAL NOT NULL REFERENCES "interaction"(id),
-    interaction_time TIMESTAMPTZ PRIMARY KEY NOT NULL UNIQUE DEFAULT NOW()
+    interaction_id BIGSERIAL NOT NULL REFERENCES "interaction"(id)
 );