Polish SECURITY.md: update contact to info@isystem.app and improve tone

[Copilot]

Updated SECURITY.md to use info@isystem.app as the single valid contact email and rebalanced tone to be professional yet welcoming.

Changes

Email consolidation

• Replaced security@isystem.app → info@isystem.app (2 instances)

Tone refinement

• Added welcoming introduction paragraph
• Enhanced section headers with descriptive context ("Principles" → "Our Security Principles")
• Converted bullet-only sections to include introductory statements
• Removed excessive punctuation, added semantic labels ("Privacy by default", "Safe operations")
• Improved closing with clearer call-to-action

Structure improvements

• Consistent formatting across all sections
• Better information hierarchy with contextual intros before bullet lists
• Maintained all technical security requirements and enforcement details

PR Checklist

• I have reviewed AI_ORCHESTRATION.md and followed all coding, security, and workflow rules.
• The PR complies with all sanitization, secret, and dual-repo procedures as defined in SSOT.
• Public-facing code/docs contain no secrets, no private prompts, and no confidential information.

Original prompt

Polish the SECURITY.md file on the branch copilot/fix-md-document-grammar to balance a formal and friendly tone. Update any email mention with '@isystem.app' domain to 'info@isystem.app', as this is the only valid contact. Ensure all references, including security reporting instructions, use the new contact email. Review for clarity and professionalism throughout.

This pull request was created as a result of the following prompt from Copilot chat.

Polish the SECURITY.md file on the branch copilot/fix-md-document-grammar to balance a formal and friendly tone. Update any email mention with '@isystem.app' domain to 'info@isystem.app', as this is the only valid contact. Ensure all references, including security reporting instructions, use the new contact email. Review for clarity and professionalism throughout.

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Note

Rewrites SECURITY.md with clearer structure and guidance, consolidating security contact to info@isystem.app.

• Docs: update SECURITY.md
  • Add welcoming introduction and clarify section headings: “Our Security Principles,” “Reporting Security Vulnerabilities,” “Secure Coding Standards,” “Policy Enforcement,” and “Additional Resources”.
  • Consolidate security contact to info@isystem.app; update disclosure instructions and advisory link; remove prior security@isystem.app reference.
  • Clarify/prioritize principles (privacy by default, safe operations) and coding standards; retain enforcement details and add resource links.

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[Copilot]

Pull Request Overview

This PR polishes the SECURITY.md file to improve its tone, clarity, and professionalism while updating the security contact email from security@isystem.app to info@isystem.app.

Key changes:

• Updated all email references to use info@isystem.app instead of security@isystem.app
• Restructured content with introductory paragraphs and more descriptive section headers
• Improved formatting with consistent bullet styles and better flow

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[Copilot]

The GitHub Security Advisories link is hardcoded to a specific repository (deep-clean-pro). Consider using a more generic reference or clarifying that this is an example, as this security policy appears to be organization-wide based on the header and content.

Suggested change

	- **Instead**, report via [GitHub Security Advisories](https://github.com/iSystemDevelopment/deep-clean-pro/security/advisories) or email us at [info@isystem.app](mailto:info@isystem.app)
	- **Instead**, report via the [GitHub Security Advisories](https://docs.github.com/en/code-security/security-advisories/global-security-advisories/about-global-security-advisories) feature in the relevant repository, or email us at [info@isystem.app](mailto:info@isystem.app)

[Copilot]

The AI_ORCHESTRATION.md link is hardcoded to the deep-clean-pro repository. Since this security policy is organization-wide, consider clarifying that this is a reference implementation or providing a more generic path if this document should exist across all repositories.

Suggested change

	- [AI_ORCHESTRATION.md](https://github.com/iSystemDevelopment/deep-clean-pro/blob/main/AI_ORCHESTRATION.md) — comprehensive developer and automation guidelines
	- [AI_ORCHESTRATION.md](https://github.com/iSystemDevelopment/deep-clean-pro/blob/main/AI_ORCHESTRATION.md) — reference implementation: comprehensive developer and automation guidelines

[Dr-Diodac]

Done