chore: update Nix shell prompt configuration

Replace PS1 export with NIX_PROJECT_SHELL environment variable for better integration with shell prompt configurations. Also add trailing newline to flake.nix for proper formatting. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2026-02-22 12:27:16 -05:00 · 2026-02-22 12:27:16 -05:00 · a65c267687
commit a65c267687
parent a498b6f525
1 changed files with 2 additions and 2 deletions
--- a/flake.nix
+++ b/flake.nix
@ -48,7 +48,7 @@
            fi

            # Prompt tweak so you can see when venv is active
-            export PS1="(SPARC-venv) $PS1"
+            export NIX_PROJECT_SHELL="SPARC"
          '';
        };
      });