feat: Add issue templates for bug reports and feature requests

chore: Create pull request template for consistent contributions

chore: Add Dependabot configuration for automatic dependency updates

refactor: Remove legacy build workflows for Windows and Linux

ci: Implement CI pipeline for code validation and testing

ci: Create release workflow for multi-platform builds and changelog generation

ci: Add security analysis workflow with CodeQL and gosec

Author: yllada

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Report a bug to help us improve
+title: '[BUG] '
+labels: bug
+assignees: yllada
+---
+
+## 🐛 Bug Description
+A clear and concise description of what the bug is.
+
+## 📋 Steps to Reproduce
+1. Go to '...'
+2. Click on '...'
+3. See error
+
+## ✅ Expected Behavior
+What you expected to happen.
+
+## ❌ Actual Behavior
+What actually happened.
+
+## 🖥️ Environment
+- **OS**: [e.g., Windows 11, Ubuntu 24.04, macOS 14]
+- **App Version**: [e.g., v1.3.0]
+- **Protocol**: [TCP/UDP]
+- **TLS Enabled**: [Yes/No]
+
+## 📷 Screenshots
+If applicable, add screenshots to help explain your problem.
+
+## 📝 Additional Context
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature Request
+about: Suggest a new feature
+title: '[FEATURE] '
+labels: enhancement
+assignees: yllada
+---
+
+## 🚀 Feature Description
+A clear and concise description of the feature you'd like.
+
+## 💡 Use Case
+Describe the problem this feature would solve or the use case it addresses.
+
+## 📝 Proposed Solution
+Describe how you envision this feature working.
+
+## 🔄 Alternatives Considered
+Have you considered any alternative solutions or features?
+
+## 📋 Additional Context
+Add any other context, screenshots, or mockups about the feature request here.

.github/PULL_REQUEST_TEMPLATE.md

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+## 📝 Description
+Brief description of changes made.
+
+## 🔗 Related Issue
+Fixes #(issue number)
+
+## 🏷️ Type of Change
+- [ ] 🐛 Bug fix (non-breaking change that fixes an issue)
+- [ ] ✨ New feature (non-breaking change that adds functionality)
+- [ ] 💥 Breaking change (fix or feature that would cause existing functionality to change)
+- [ ] 📚 Documentation update
+- [ ] ♻️ Refactoring (no functional changes)
+- [ ] 🔧 Configuration change
+- [ ] ⚡ Performance improvement
+
+## 🧪 How Has This Been Tested?
+Describe the tests you ran to verify your changes.
+
+- [ ] Tested on Windows
+- [ ] Tested on Linux
+- [ ] Tested on macOS
+- [ ] TCP connection works
+- [ ] UDP connection works
+- [ ] TLS connection works
+
+## 📋 Checklist
+- [ ] My code follows the project's style guidelines
+- [ ] I have performed a self-review of my code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings
+- [ ] Any dependent changes have been merged and published
+
+## 📷 Screenshots (if applicable)
+Add screenshots to show visual changes.

.github/dependabot.yml

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+# =============================================================================
+# Dependabot Configuration
+# =============================================================================
+# Mantiene las dependencias actualizadas automáticamente.
+# Documentación: https://docs.github.com/en/code-security/dependabot
+# =============================================================================
+
+version: 2
+
+updates:
+  # Go modules
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "America/New_York"
+    commit-message:
+      prefix: "chore(deps)"
+    labels:
+      - "dependencies"
+      - "go"
+    reviewers:
+      - "yllada"
+    open-pull-requests-limit: 5
+    groups:
+      wails:
+        patterns:
+          - "github.com/wailsapp/*"
+
+  # npm (frontend)
+  - package-ecosystem: "npm"
+    directory: "/frontend"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "America/New_York"
+    commit-message:
+      prefix: "chore(deps)"
+    labels:
+      - "dependencies"
+      - "frontend"
+    reviewers:
+      - "yllada"
+    open-pull-requests-limit: 5
+    groups:
+      # Agrupar actualizaciones de React
+      react:
+        patterns:
+          - "react"
+          - "react-dom"
+          - "@types/react*"
+      # Agrupar actualizaciones de Next.js
+      nextjs:
+        patterns:
+          - "next"
+          - "eslint-config-next"
+      # Agrupar shadcn/ui y radix
+      ui:
+        patterns:
+          - "@radix-ui/*"
+          - "tailwindcss"
+          - "class-variance-authority"
+          - "clsx"
+          - "tailwind-merge"
+      # Agrupar herramientas de desarrollo
+      dev-tools:
+        patterns:
+          - "typescript"
+          - "eslint*"
+          - "@typescript-eslint/*"
+          - "prettier*"
+
+  # GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "America/New_York"
+    commit-message:
+      prefix: "chore(ci)"
+    labels:
+      - "dependencies"
+      - "ci"
+    reviewers:
+      - "yllada"
+    open-pull-requests-limit: 3