PR_26171_BETA_069 message tts profile contract alignment

[ToolboxAid]

Summary

• Aligns Message Studio visible contract wording to Message Parts choosing Text, Emotion, and TTS Profile.
• Renames the Local API default TTS profile seed to the required Default Balanced TTS Profile.
• Tightens Message Studio validation coverage for the Message Part add/edit row Text, Emotion, and TTS Profile controls.
• Includes BETA ownership, parent/child table, validation, manual notes, review diff, changed files, and generated validation lane reports.

TEAM Ownership

• TEAM owner: BETA
• Message Studio: BETA-owned Messages
• TTS Studio: BETA-owned Text To Speech / TTS
• TextToSpeechEngine-adjacent playback: BETA-owned Audio/TTS lane, with src/engine/audio retaining playback implementation ownership

Validation

• npx playwright test tests/playwright/tools/MessagesTool.spec.mjs --trace=off
• npx playwright test tests/playwright/tools/TextToSpeechFunctional.spec.mjs
• node --test tests/tools/Text2SpeechShell.test.mjs
• npm run test:workspace-v2
• git diff --check

Note: npm run test:workspace-v2 is a legacy command name; user-facing language remains Project Workspace / Game Hub.

Reports

• docs_build/dev/reports/PR_26171_BETA_069-message-tts-profile-contract-alignment.md
• docs_build/dev/reports/PR_26171_BETA_069-message-tts-profile-contract-alignment-message-tts-ownership-checklist.md
• docs_build/dev/reports/PR_26171_BETA_069-message-tts-profile-contract-alignment-parent-child-table-checklist.md
• docs_build/dev/reports/PR_26171_BETA_069-message-tts-profile-contract-alignment-validation.md
• docs_build/dev/reports/PR_26171_BETA_069-message-tts-profile-contract-alignment-manual-validation-notes.md
• docs_build/dev/reports/codex_review.diff
• docs_build/dev/reports/codex_changed_files.txt

ZIP

• tmp/PR_26171_BETA_069-message-tts-profile-contract-alignment_delta.zip

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Migrate the old TTS seed name instead of duplicating it

In an existing Messages SQLite database created before this commit, changing the seed name here causes seedDefaults() to miss the previous Browser Speech Default row because it only checks findTtsProfileByName(profile.name), then inserts a second active default profile. Since listTtsProfiles() orders by name and Message Studio chooses the first active TTS profile as the default, those existing databases will keep using/displaying Browser Speech Default ahead of the new balanced profile rather than aligning to the new contract. Add a migration/rename path for the old seed instead of treating the new label as a separate seed.

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