fix: A1-16 keep public project content out of repo via per-user content location and machine-local project registry

test/test_helper.exs

@@ -2,6 +2,16 @@ cache_root = Path.join(System.tmp_dir!(), "bds-test-cache-#{System.unique_intege
 File.mkdir_p!(cache_root)
 Application.put_env(:bds, :project_cache_root, cache_root)
 
+# Public, user-owned default project content lives under a per-user default
+# content location — never the repo or the private app dir. Tests redirect it
+# to a throwaway temp dir so first-launch defaults never touch the developer's
+# home directory.
+content_root =
+  Path.join(System.tmp_dir!(), "bds-test-content-#{System.unique_integer([:positive])}")
+
+File.mkdir_p!(content_root)
+Application.put_env(:bds, :default_content_root, content_root)
+
 Enum.each(["LC_ALL", "LC_MESSAGES", "LANG"], fn variable ->
   System.put_env(variable, "en_US.UTF-8")
 end)
@@ -10,6 +20,7 @@ ExUnit.start()
 
 ExUnit.after_suite(fn _results ->
   File.rm_rf(cache_root)
+  File.rm_rf(content_root)
 end)
 
 Ecto.Adapters.SQL.Sandbox.mode(BDS.Repo, :manual)