PR_26175_BRAVO_001: add PR 003 Messages code review

[ToolboxAid]

Summary

• Adds a report-only code review for GitHub PR Pr/PR 26171 006 message emotion profile management #3, focused on Messages / Emotion Profiles.
• Documents changed code files, full changed file list, runtime/DB/API/UI/Theme V2/auth/browser-data risks, deletion/in-use guard risk, test coverage, Playwright recommendation, and merge/hold/close recommendation.
• Recommends closing PR Pr/PR 26171 006 message emotion profile management #3 as superseded after OWNER approval because it is stale, not mergeable, targets the removed SQLite service path, and mixes future BUILD specs into the PR_006 lane.

Validation

• PASS: Started from clean, synced main.
• PASS: Read all files under docs_build/dev/ProjectInstructions/ before report generation.
• PASS: Pulled PR Pr/PR 26171 006 message emotion profile management #3 metadata, comments, changed-file list, and code diffs from GitHub.
• PASS: Confirmed current main has messages-postgres-service.mjs and does not have messages-sqlite-service.mjs.
• PASS: git diff --check and git diff --cached --check passed with CRLF warning on generated codex_review.diff only.
• PASS: Created repo-structured ZIP at tmp/PR_26175_BRAVO_001-pr-003-messages-emotion-profiles-code-review_delta.zip.

Scope Guard

• Report-only.
• No runtime code changes.
• No PR merges, closures, or branch deletions performed.

[ToolboxAid]

OWNER-approved cleanup batch 2: closing as superseded because PR #3 is already closed. No branch deletion is being performed.