feat: emit spec bus messages alongside legacy (PIPELINE-1 §8/§9.6, STOP-1 §4.2)

[JarbasAl]

What

Introduce a deployment-wide legacy_namespace config flag (default True) that
selects the bus-topic namespace during the mycroft.* → ovos.* transition. A skill
emits exactly one namespace (never both), so subscribers never see duplicate
messages — and skills subscribe on both so they work whichever namespace a producer
uses.

Logical event	legacy (legacy_namespace: true)	spec (legacy_namespace: false)
handler trio (PIPELINE-1 §8)	mycroft.skill.handler.start/.complete/.error	ovos.intent.handler.start/.complete/.error
speak (PIPELINE-1 §9.6)	speak	ovos.utterance.speak
stop pong (STOP-1 §4.2)	skill.stop.pong	ovos.stop.pong
stop subscribe (§4.2/§4.3/§5.3)	{skill}.stop.ping, mycroft.stop, {skill}.stop	also ovos.stop.ping, ovos.stop, {skill}:stop

Selection reads Configuration().get("legacy_namespace", True) per emit. No double-emit
(this avoids hacks like audio receiving speak twice).

Why first

Companion to ovos-core; merges first so core CI sees the skill-side behaviour. See also
ovos-dinkum-listener, ovos-simple-listener, ovos-audio companion PRs.

Tests

test/unittests/test_spec_bus_messages.py — both namespaces for the trio, speak and pong
(6 passed). Also exercised end-to-end by the ovos-core conformance suites.

🤖 Generated with Claude Code

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 41feafc1-c752-4bf2-b4d2-91bd286d6a8f

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/spec-bus-messages

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

Standard verification protocol finished. 📋

I've aggregated the results of the automated checks for this PR below.

📋 Repo Health

Scanning for any signs of 'deprecated' acne. 🧴

✅ All required files present.

Latest Version: 9.0.0a1

✅ ovos_workshop/version.py — Version file
✅ README.md — README
✅ LICENSE — License file
✅ pyproject.toml — pyproject.toml
⚠️ setup.py — setup.py
✅ CHANGELOG.md — Changelog
✅ ovos_workshop/version.py has valid version block markers

🔍 Lint

A quick update on the progress of your PR checks. 📈

❌ ruff: issues found — see job log

🔒 Security (pip-audit)

I've audited the access control lists. 📋

✅ No known vulnerabilities found (72 packages scanned).

🔨 Build Tests

I've finished the digital carpentry on this PR. 🔨

Python	Build	Install	Tests
3.10	✅	❌	⊘
3.11	✅	❌	⊘
3.12	✅	❌	⊘
3.13	✅	❌	⊘
3.14	✅	❌	⊘

---

❌ 3.10: Build OK, install failed
❌ 3.11: Build OK, install failed
❌ 3.12: Build OK, install failed
❌ 3.13: Build OK, install failed
❌ 3.14: Build OK, install failed
Check job logs for details.

⚖️ License Check

I've checked the genealogical tree of your licenses. 🌳

✅ No license violations found.

Policy: Apache 2.0 (universal donor). StrongCopyleft / NetworkCopyleft / WeakCopyleft / Other / Error categories fail. MPL allowed.

---

Crafting quality through automation. 🧪