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/gastown-fix-validate-recipient.patch

@@ -4,7 +4,7 @@ index b864c069..4b6a045b 100644
 +++ b/internal/mail/router.go
 @@ -646,7 +646,7 @@ func (r *Router) validateRecipient(identity string) error {
  	}
-
+ 
  	for _, agent := range agents {
 -		if agentBeadToAddress(agent) == identity {
 +		if AddressToIdentity(agentBeadToAddress(agent)) == AddressToIdentity(identity) {