feat: externalize apps/analysis to Gitea repos, add analysis table

- Migration 007: repo_url on apps table + analysis table with FTS5
- Analysis struct, parser, CRUD, validation, hash computation
- Selective purge: remote-only apps/analysis preserved across fn index
- CLI: fn app list/clone/pull, fn analysis list/clone/pull
- search/show/list now include analysis results
- Apps removed from git tracking (content lives in Gitea repos)
- .gitkeep for apps/ and analysis/ dirs
- Bash functions: jupyter analysis pipeline, shell utilities
- Browser domain: CDP functions moved from infra to browser

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

functions/browser/cdp_evaluate.go

@@ -0,0 +1,48 @@
+package browser
+
+import (
+	"fmt"
+)
+
+// CdpEvaluate ejecuta una expresion JavaScript en la pagina actual via Runtime.evaluate.
+// Retorna el resultado como string. Soporta expresiones simples y complejas.
+// Para valores no-string, Chrome los serializa a JSON.
+func CdpEvaluate(c *CDPConn, expression string) (string, error) {
+	if c == nil {
+		return "", fmt.Errorf("cdp evaluate: conexion nula")
+	}
+
+	params := map[string]any{
+		"expression":            expression,
+		"returnByValue":         true,
+		"awaitPromise":          true,
+		"userGesture":           true,
+	}
+
+	result, err := c.sendCDP("Runtime.evaluate", params)
+	if err != nil {
+		return "", fmt.Errorf("cdp evaluate: %w", err)
+	}
+
+	// Verificar excepcion JS
+	if exc, ok := result["exceptionDetails"]; ok && exc != nil {
+		excMap, _ := exc.(map[string]any)
+		text, _ := excMap["text"].(string)
+		return "", fmt.Errorf("cdp evaluate: excepcion JS: %s", text)
+	}
+
+	// Extraer valor del resultado
+	resVal, ok := result["result"].(map[string]any)
+	if !ok {
+		return "", fmt.Errorf("cdp evaluate: resultado inesperado: %v", result)
+	}
+
+	value, ok := resVal["value"]
+	if !ok {
+		// Puede ser undefined o un tipo no serializable
+		typ, _ := resVal["type"].(string)
+		return typ, nil
+	}
+
+	return fmt.Sprintf("%v", value), nil
+}