[OKAN-SOFTWARE]

Summary

• Finalize Maven project version from 0.3.0-SNAPSHOT to 0.3.0.
• Update README to distinguish source version from GitHub's published releases.
• Add CHANGELOG.md covering Extract/Generate Modes, review editor, Markdown/JSON/HTML exports, deduplication and FAQ quality fixes.
• Add docs/RELEASING.md with Java/Maven verification, smoke tests, GitHub tag/release publication steps, and post-release checks.

Verification

• Existing GitHub Actions build-and-test must pass on this PR.
• Version-only/documentation update; no runtime behavior change.
• Latest example document smoke-tested by repository owner: six Extract Mode FAQs and nine Generate Mode FAQs.

Important

This PR does not create the public GitHub Release or v0.3.0 tag. After merging, publish a release from main using the checklist in docs/RELEASING.md. No PDF/DOCX export is included in v0.3.0.