Run script/setup in new worktrees and give each task a port block

internal/claude/session.go

@@ -37,6 +37,7 @@ type Options struct {
 	ForkSession bool
 	GitName     string
 	GitEmail    string
+	Env         []string
 	Guidance    string
 	Hooks       map[string][]HookMatcher
 	MCPServers  []*mcp.Server
@@ -355,7 +356,7 @@ func buildEnv(opts Options) []string {
 		env = append(env, kv)
 	}
 
-	return append(env,
+	env = append(env,
 		"CLAUDE_CODE_ENTRYPOINT=sdk-go",
 		"CLAUDE_CODE_DISABLE_AUTOUPDATER=1",
 		"GIT_AUTHOR_NAME="+opts.GitName,
@@ -363,6 +364,7 @@ func buildEnv(opts Options) []string {
 		"GIT_COMMITTER_NAME="+opts.GitName,
 		"GIT_COMMITTER_EMAIL="+opts.GitEmail,
 	)
+	return append(env, opts.Env...)
 }
 
 func (s *Session) hookConfig(hooks map[string][]HookMatcher) map[string]any {