feat(server): added endpoint for content of build log

src/db/logs.v

@@ -3,10 +3,12 @@ module db
 import time
 
 pub struct BuildLog {
+pub:
 	id         int       [primary; sql: serial]
 	repo_id    int       [nonull]
 	start_time time.Time [nonull]
 	end_time   time.Time [nonull]
+	arch string [nonull]
 	exit_code  int       [nonull]
 }