feat: update professional summary with modern tech stack

English summary:
- Remove outdated: J2EE, PHP, generic descriptions
- Add modern stack: Go, Node.js, React, HTMX
- Add infrastructure: VPS, CI/CD pipelines
- Highlight: AI methodologies in software engineering
- Emphasize: 40+ national and international clients
- Maintain: Frontend expertise, problem-solving, team collaboration

Spanish summary:
- Eliminar obsoleto: J2EE, PHP, descripciones genéricas
- Añadir stack moderno: Go, Node.js, React, HTMX
- Añadir infraestructura: VPS, pipelines CI/CD
- Destacar: Metodologías de IA en ingeniería de software
- Enfatizar: Más de 40 clientes nacionales e internacionales
- Mantener: Experiencia frontend, resolución de problemas, colaboración

Both summaries modernized to reflect current expertise and AI-assisted development practices.

data/cv-en.json

@@ -14,7 +14,7 @@
     "website": "https://juan.andres.morenoyrubio.com",
     "photo": "/static/images/profile.jpg"
   },
-  "summary": "Technical Consultant, Analyst and Fullstack Developer. Specialist in SAP Customer Data Cloud. Passionate about web technologies (mainly Go and Node/React ecosystems). Proven track record of leading technical projects and providing guidance to over 40 international clients. Seeking opportunities to apply and expand my skills in a challenging and rewarding environment.",
+  "summary": "Full-stack developer specializing in modern web technologies: Go, Node.js, React, and HTMX. Frontend expert with strong backend and VPS infrastructure experience, including CI/CD pipelines. Applying AI methodologies to software engineering for enhanced productivity and code quality. Problem solver delivering tailored solutions for diverse client needs, with proven experience across over 40 national and international clients. Effective working independently or in teams.",
   "experience": [
     {
       "position": "Senior SAP Technical Consultant",

data/cv-es.json

@@ -14,7 +14,7 @@
     "website": "https://juan.andres.morenoyrubio.com",
     "photo": "/static/images/profile.jpg"
   },
-  "summary": "Consultor Técnico, Analista y Desarrollador Fullstack. Especialista en SAP Customer Data Cloud. Apasionado por las tecnologías web (principalmente ecosistemas Go y Node/React). Trayectoria demostrada liderando proyectos técnicos y asesorando a más de 40 clientes internacionales. Buscando oportunidades para aplicar y expandir mis habilidades en un entorno desafiante y gratificante.",
+  "summary": "Desarrollador full-stack especializado en tecnologías web modernas: Go, Node.js, React y HTMX. Experto en front-end con sólida experiencia en back-end e infraestructura VPS, incluyendo pipelines CI/CD. Aplicando metodologías de IA en ingeniería de software para mejorar productividad y calidad del código. Capacidad de aportar soluciones adaptadas a cada cliente, con experiencia demostrada en más de 40 clientes nacionales e internacionales. Eficaz trabajando solo o en equipo.",
   "experience": [
     {
       "position": "Consultor Técnico Senior SAP",