fix(gastown): repair malformed patch files for nixos-rebuild

- Remove 'index 0000000..1111111' lines that made patches appear as new files
- Fix hunk line counts in several patches
- Add missing leading spaces to blank context lines
- Temporarily disable statusline optimization patch (needs regenerating)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

home/roles/development/default.nix

@@ -55,9 +55,9 @@ let
       ./gastown-fix-town-root-detection.patch
       # Fix copyDir to handle symlinks (broken symlinks cause "no such file" errors)
       ./gastown-fix-copydir-symlinks.patch
-      # Statusline optimization: skip detached sessions and cache results
+      # TODO: Statusline optimization patch needs regenerating against current gastown source
       # Reduces Dolt CPU from ~70% to ~20% by avoiding beads queries for sessions nobody is watching
-      ./gastown-statusline-optimization.patch
+      # ./gastown-statusline-optimization.patch
     ];
 
     meta = with lib; {