What was accomplished

• Added a Contributor Covenant v2.1 based CODE_OF_CONDUCT.md tailored with FlowSynx reporting details.
• Linked the new policy from the Community & Contributing section of README.md to drive visibility.

Design decisions and rationale

• Adopted the widely recognized Contributor Covenant v2.1 template to ensure broad community familiarity.
• Reused the existing [email protected] channel from the security policy to keep reporting paths consistent.

Tests added or modified

• No automated tests were added or modified; this is a documentation-only change.

Alignment with repository patterns and objectives

• Matched the repository's Markdown formatting, emoji-driven callouts, and concise tone in community documentation.
• Introduced the code of conduct at the repository root to meet open source community expectations and roadmap goals.

Closes #531