Add Hermes Tweet as a sentiment analysis source

[kriptoburak]

Summary

• Add Hermes Tweet as an optional X/Twitter source for the existing sentiment-analysis skill.
• Clarify the metadata to preserve from X/Twitter exports: query terms, date range, post URL, author handle, timestamp, text, engagement fields, and reply or quote context.
• Add the same accepted input type to the analyze-feedback command.

Validation

• python3 validate_plugins.py passed: 9 plugins, 68 skills, 42 commands, 0 warnings.
• claude plugin validate pm-market-research passed.
• git diff --check passed.
• curl -I -L https://github.com/Xquik-dev/hermes-tweet returned HTTP 200.

Note: root claude plugin validate . still reports pre-existing marketplace-schema keys ($schema, version, description) on .claude-plugin/marketplace.json; the changed pm-market-research plugin validates cleanly.