Add Safe Ingestion Engine landing page HTML

[Elmahrosa-Steward]

Motivation

• Provide a static marketing/landing page for the Safe Ingestion Engine to serve project documentation and onboarding information.
• Make core product messaging, trial CTA, pricing, contact details, and architecture overview available as a single deployable HTML file.
• Include responsive, self-contained styling and metadata so the page can be served without extra build steps.

Description

• Add a new index.html containing the full landing page markup, OG/meta tags, font preconnects, and embedded CSS theme and layout.
• Implemented sectioned content including hero, features, architecture, use-cases, pricing, free trial CTA, contact table, and footer.
• Included responsive behavior via media queries to collapse multi-column grids on smaller viewports and simplified navigation for mobile.
• Added mailto CTAs and example pricing/trial copy so the page is ready for manual or simple static hosting.

Testing

• Launched a lightweight local server with python3 -m http.server 4173 --directory /workspace/.github and verified the page responded successfully. (succeeded)
• Rendered the page in a headless browser via Playwright and captured a full-page screenshot artifact at browser:/tmp/codex_browser_invocations/0511c80aac4968f5/artifacts/artifacts/safe-ingestion-landing.png. (succeeded)

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Codex Task

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[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request delivers a complete, self-contained HTML landing page for the 'Safe Ingestion Engine' product. Its primary goal is to provide a central, accessible resource for potential users to understand the product's value proposition, features, and operational model, facilitating both marketing and initial onboarding processes.

Highlights

• New Landing Page: Introduced a new index.html file to serve as a static marketing and onboarding landing page for the Safe Ingestion Engine.
• Comprehensive Content: The page includes core product messaging, features, architecture overview, use cases, pricing details, free trial call-to-actions, and contact information.
• Self-Contained & Responsive: The entire page, including styling and metadata, is self-contained within a single HTML file, designed to be responsive across various viewports using media queries.
• Deployment Ready: The page is configured with mailto CTAs and example pricing/trial copy, making it ready for manual or simple static hosting without additional build steps.

Changelog

• index.html
  • Added a new HTML file for the Safe Ingestion Engine landing page.

Activity

• A local server was launched using python3 -m http.server to verify the page's responsiveness.
• The page was rendered in a headless browser via Playwright, and a full-page screenshot artifact was captured for visual verification.

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[gemini-code-assist]

Code Review

This pull request adds a new self-contained index.html file for the Safe Ingestion Engine landing page. The code is well-structured, using semantic HTML and modern CSS practices like CSS variables and responsive design. I've provided a couple of suggestions to improve accessibility and maintainability. Specifically, I've recommended hiding decorative emojis from screen readers and removing an inline style in favor of a CSS class or rule.

[gemini-code-assist]

For better accessibility, it's recommended to hide decorative emojis from screen readers. A screen reader might announce this as 'shield', which could be confusing for users of assistive technology. Since the icon is decorative, you can wrap it in a <span> with aria-hidden="true". This advice applies to all other emoji icons used in this file.

Suggested change

	<div class="feature-icon">🛡</div>
	<div class="feature-icon"><span aria-hidden="true">🛡</span></div>

[gemini-code-assist]

Avoid using inline styles like style="margin-top:18px". It's better to manage all styling within your CSS block for improved maintainability and separation of concerns. You can add a specific rule to your CSS for this element, for example by targeting it with #pricing .notice { margin-top: 18px; }.

Suggested change

	<div class="notice" style="margin-top:18px">
	<div class="notice">