classify db vs non-db files accordingly #3821
Description
if a file has content and we try to make a db with it we report it as corrupted but sqlite just says file aint no db
❯ cargo run asdfg.sql
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
Running `target/debug/tursodb asdfg.sql`
Error: Corrupt database: invalid page size in database header: 0
❯ sqlite3 asdfg.sql
SQLite version 3.50.4 2025-07-30 19:33:53
Enter ".help" for usage hints.
sqlite> .tables
Error: file is not a database cat asdfg.sql
create me%