chore: ignore the whole scripts directory

scripts/ holds local development tooling that runs against a private
TubeArchivist instance and is only useful for developing this fork.
Ignoring the directory rather than naming each file keeps future helper
scripts local by default.

Note: AI Generated Commit

.gitignore

@@ -18,4 +18,4 @@ PROJECT_PLAN.md
 # Testing
 tests/
 .env
-scripts/make-test-media.sh
+scripts/