[OKAN-SOFTWARE]

Prepare v0.3.1 so the next runnable JAR includes the parsing, stale-draft, and responsibility-deduplication fixes already merged in #8.

• Set the project version to 0.3.1 and finalize the changelog.
• Replace the document-content placeholder with neutral Q&A about organizing notes and writing useful answers.
• Replace the Generate Mode payment/agreement sample with a team knowledge guide and update the README example.
• Document building, restarting, occupied ports, and publishing the tested doc2faq-0.3.1.jar from the matching release commit.

Validation:

• mvn -B -ntp clean verify: 38 Java tests passed; runnable v0.3.1 JAR built successfully.
• node --test src/test/js/*.test.cjs: 12 JavaScript tests passed.
• Additional DOM checks passed for editing, reordering, search, imports, exports, escaping, and stale-response handling.
• Verified the JAR manifest and startup report v0.3.1 and the bundled frontend matches the updated source.
• Packaged-app API checks extracted both placeholder Q&A pairs, generated four FAQs from the new team sample, and retained separate client/provider responsibilities.
• Confirmed payment and fee examples are absent from the interface placeholder and loaded samples.

After merging: pull the release commit, rebuild and smoke-test the JAR, then create tag v0.3.1 and attach target/doc2faq-0.3.1.jar to the new GitHub Release. This PR does not publish a release or replace the existing v0.3.0 artifact.