release: prepare Hermes Chutes Provider v0.1.5

[TheStreamCode]

Summary

• Harden live Chutes catalog handling and GitHub Actions gates through the changes stacked in release: harden and publish Hermes Chutes Provider v0.1.5 #4.
• Improve the public GitHub presentation with a current-status summary, a compact architecture diagram, structured Issue Forms, private vulnerability reporting guidance, and the source social-preview asset.
• Prepare Hermes Chutes Provider v0.1.5 by synchronizing package, plugin, citation, changelog, test, issue-form, and stable-install documentation versions for the real 2026-08-08 release date.

This PR remains intentionally stacked on #4. After #4 receives the required human approval and merges, this PR should be retargeted to main, marked ready, approved by a human reviewer, and merged before tagging v0.1.5.

Validation

• python -m unittest discover -s tests -v
• Offline suite passed on Python 3.11, 3.12, and 3.14
• Hermes integration passed in CI before the release bump and will run again for this commit
• python -m pip wheel . --no-deps completed
• Wheel and sdist built in isolation and passed Twine checks
• Wheel contains LICENSE and NOTICE and excludes tests, GitHub assets, credentials, and caches
• CITATION.cff validates against CFF 1.2.0
• Plugin, citation, workflow, and Issue Form YAML files parse successfully
• Gitleaks found no secrets

Compatibility and Security

• No credentials, secrets, or private data are included
• Hermes Agent and Chutes compatibility claims were verified

Distribution remains GitHub Releases only. This repository has no VS Code extension manifest or VSIX artifact, so no VSIX update applies to this release. No tag or GitHub Release will be created until both protected PRs are merged.