feat: pantalla de tests en el dashboard TUI

Nueva seccion "Tests" en el menu principal del dashboard que permite
ejecutar Go tests, E2E tests (headless y headed), y todos secuencialmente.

- ScreenTests con menu de seleccion de tipo de test
- TestKind enum para identificar el tipo de test ejecutado
- Nuevos intents: IntentRunGoTests, IntentRunE2ETests, IntentRunE2EHeadTests, IntentRunAllTests
- LastTestKind en Model para re-ejecucion con "r"
- runGoTests, runE2ETests, runAllTests en adapter
- "Run Tests" en Server menu reemplazado por navegacion a ScreenTests
- Test output muestra tipo de test en titulo y vuelve a ScreenTests con "0"

Issue: 0023

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

shell/tui/adapter.go

@@ -59,7 +59,19 @@ func (a *Adapter) RunIntent(intent puretui.Intent) tea.Cmd {
 		return a.rebuildRestart()
 
 	case puretui.IntentRunTests:
-		return a.runTests()
+		return a.runGoTests()
+
+	case puretui.IntentRunGoTests:
+		return a.runGoTests()
+
+	case puretui.IntentRunE2ETests:
+		return a.runE2ETests(false)
+
+	case puretui.IntentRunE2EHeadTests:
+		return a.runE2ETests(true)
+
+	case puretui.IntentRunAllTests:
+		return a.runAllTests()
 
 	case puretui.IntentTick:
 		return a.tick()
@@ -236,11 +248,10 @@ func (a *Adapter) loadLogs(id string) tea.Cmd {
 	}
 }
 
-func (a *Adapter) runTests() tea.Cmd {
+func (a *Adapter) runGoTests() tea.Cmd {
 	return func() tea.Msg {
 		goBin, err := exec.LookPath("go")
 		if err != nil {
-			// Fallback to known location
 			goBin = "/usr/local/go/bin/go"
 		}
 		cmd := exec.Command(goBin, "test", "-tags", "goolm", "-count=1", "./...")
@@ -252,9 +263,71 @@ func (a *Adapter) runTests() tea.Cmd {
 			output = "Error: " + err.Error()
 		}
 		lines := strings.Split(output, "\n")
-		passed := err == nil
+		return puretui.MsgTestsDone{Kind: puretui.TestKindGo, Passed: err == nil, Output: lines}
+	}
+}
 
-		return puretui.MsgTestsDone{Passed: passed, Output: lines}
+func (a *Adapter) runE2ETests(headed bool) tea.Cmd {
+	return func() tea.Msg {
+		args := []string{"./dev-scripts/e2e/run.sh"}
+		if headed {
+			args = append(args, "--headed")
+		}
+		cmd := exec.Command("bash", args...)
+		cmd.Env = a.mgr.BuildEnv()
+		out, err := cmd.CombinedOutput()
+
+		output := strings.TrimSpace(string(out))
+		if output == "" && err != nil {
+			output = "Error: " + err.Error()
+		}
+		lines := strings.Split(output, "\n")
+		kind := puretui.TestKindE2E
+		if headed {
+			kind = puretui.TestKindE2EHead
+		}
+		return puretui.MsgTestsDone{Kind: kind, Passed: err == nil, Output: lines}
+	}
+}
+
+func (a *Adapter) runAllTests() tea.Cmd {
+	return func() tea.Msg {
+		var allLines []string
+
+		// Go tests first
+		goBin, err := exec.LookPath("go")
+		if err != nil {
+			goBin = "/usr/local/go/bin/go"
+		}
+		goCmd := exec.Command(goBin, "test", "-tags", "goolm", "-count=1", "./...")
+		goCmd.Env = a.mgr.BuildEnv()
+		goOut, goErr := goCmd.CombinedOutput()
+
+		allLines = append(allLines, "═══ Go Tests ═══")
+		goOutput := strings.TrimSpace(string(goOut))
+		if goOutput == "" && goErr != nil {
+			goOutput = "Error: " + goErr.Error()
+		}
+		allLines = append(allLines, strings.Split(goOutput, "\n")...)
+
+		if goErr != nil {
+			allLines = append(allLines, "", "Go tests FAILED — skipping E2E")
+			return puretui.MsgTestsDone{Kind: puretui.TestKindAll, Passed: false, Output: allLines}
+		}
+
+		// E2E tests
+		allLines = append(allLines, "", "═══ E2E Tests ═══")
+		e2eCmd := exec.Command("bash", "./dev-scripts/e2e/run.sh")
+		e2eCmd.Env = a.mgr.BuildEnv()
+		e2eOut, e2eErr := e2eCmd.CombinedOutput()
+
+		e2eOutput := strings.TrimSpace(string(e2eOut))
+		if e2eOutput == "" && e2eErr != nil {
+			e2eOutput = "Error: " + e2eErr.Error()
+		}
+		allLines = append(allLines, strings.Split(e2eOutput, "\n")...)
+
+		return puretui.MsgTestsDone{Kind: puretui.TestKindAll, Passed: e2eErr == nil, Output: allLines}
 	}
 }