feat: añadir skills create-tui, init-frontend, init-go-module y utilidades

Nuevas skills para crear TUIs, inicializar frontends React y módulos Go.
Incluye binario parallel-executor y utilidades de soporte.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

utils/parallel-executor/shell/executor.go

@@ -0,0 +1,127 @@
+package shell
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/lucasdataproyects/devfactory/core"
+	dfshell "github.com/lucasdataproyects/devfactory/shell"
+
+	pcore "github.com/lucasdataproyects/parallel-executor/core"
+)
+
+const defaultTimeout = 30 * time.Minute
+
+// ExecuteIssue ejecuta claude para resolver una issue en un worktree.
+// Invoca `claude -p` con el prompt de fix-issue dentro del worktree.
+func ExecuteIssue(spec pcore.WorktreeSpec, timeout time.Duration) pcore.ExecutionResult {
+	start := time.Now()
+
+	if timeout == 0 {
+		timeout = defaultTimeout
+	}
+
+	prompt := fmt.Sprintf(
+		"Read the issue file dev/issues/%04d-*.md and implement all tasks. "+
+			"Run tests after each change. Follow pure core / impure shell pattern. "+
+			"When done, commit all changes with a descriptive message.",
+		spec.Issue.Number,
+	)
+
+	result := dfshell.RunWithTimeout("claude",
+		timeout,
+		"-p", prompt,
+		"--cwd", spec.WorkDir,
+	)
+
+	duration := time.Since(start).Round(time.Second).String()
+
+	if result.IsErr() {
+		return pcore.ExecutionResult{
+			Issue:    spec.Issue,
+			Success:  false,
+			Duration: duration,
+			Error:    result.Error().Error(),
+		}
+	}
+
+	cmdResult := result.Unwrap()
+	if !cmdResult.Success() {
+		return pcore.ExecutionResult{
+			Issue:    spec.Issue,
+			Success:  false,
+			Duration: duration,
+			Error:    cmdResult.Stderr,
+		}
+	}
+
+	return pcore.ExecutionResult{
+		Issue:    spec.Issue,
+		Success:  true,
+		Duration: duration,
+	}
+}
+
+// PushWorktreeBranch hace push de la branch del worktree al remote.
+func PushWorktreeBranch(spec pcore.WorktreeSpec) core.Result[struct{}] {
+	result := dfshell.Run("git", "-C", spec.WorkDir,
+		"push", "-u", "origin", spec.BranchName,
+	)
+	if result.IsErr() {
+		return core.Err[struct{}](fmt.Errorf("push failed for %s: %w",
+			spec.BranchName, result.Error()))
+	}
+	return core.Ok(struct{}{})
+}
+
+// MergeBranchToMaster mergea una branch a master con --no-ff.
+func MergeBranchToMaster(branchName string, repoRoot string) core.Result[struct{}] {
+	// Checkout master
+	result := dfshell.Run("git", "-C", repoRoot, "checkout", "master")
+	if result.IsErr() {
+		return core.Err[struct{}](result.Error())
+	}
+
+	// Merge --no-ff
+	message := fmt.Sprintf("merge: %s — parallel execution", branchName)
+	result = dfshell.Run("git", "-C", repoRoot,
+		"merge", "--no-ff", "-m", message, branchName,
+	)
+	if result.IsErr() {
+		return core.Err[struct{}](fmt.Errorf("merge failed for %s: %w",
+			branchName, result.Error()))
+	}
+
+	return core.Ok(struct{}{})
+}
+
+// DeleteBranch elimina una branch local.
+func DeleteBranch(branchName string, repoRoot string) core.Result[struct{}] {
+	result := dfshell.Run("git", "-C", repoRoot, "branch", "-d", branchName)
+	if result.IsErr() {
+		return core.Err[struct{}](result.Error())
+	}
+	return core.Ok(struct{}{})
+}
+
+// ReadIssueFiles lee todos los archivos de issues de un directorio.
+func ReadIssueFiles(issuesDir string) core.Result[map[string]string] {
+	entries := dfshell.ListDir(issuesDir)
+	if entries.IsErr() {
+		return core.Err[map[string]string](entries.Error())
+	}
+
+	files := make(map[string]string)
+	for _, entry := range entries.Unwrap() {
+		if !strings.HasSuffix(entry, ".md") || entry == "README.md" {
+			continue
+		}
+		content := dfshell.ReadString(issuesDir + "/" + entry)
+		if content.IsOk() {
+			files[entry] = content.Unwrap()
+		}
+	}
+
+	return core.Ok(files)
+}