Comprehensive User-First Documentation Overhaul

[abdoruzaqi]

This PR executes a complete rewrite of the FlexiRule documentation to prioritize business user-friendliness. Key changes include:

• Structural Reorganization: Content is now organized into Getting Started, Using the Builder, Core Actions, and Advanced Reference sections.
• User-Centric Language: Technical jargon has been replaced with intuitive terms (e.g., "Check" for Conditions, "Repeat" for Loops, "Set Value" for Assignments).
• Simplified Guides: All core logic blocks now feature simplified descriptions, clear "When to use" scenarios, and step-by-step configuration instructions.
• Technical Isolation: Highly technical features, such as the "Advanced Process" action, have been moved to the Advanced Reference section to keep primary workflows clean.
• Hugo Optimization: All pages include proper YAML front matter (title, weight, description) and use relref for stable internal linking.
• Verification: The entire site structure was verified using a production Hugo build to ensure no broken links or structural regressions.

---

PR created automatically by Jules for task 16032672302844654878 started by @abdoruzaqi

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.

[chatgpt-codex-connector]

You have reached your Codex usage limits for code reviews. You can see your limits in the Codex usage dashboard.