chore(web): Display commit SHA in settings dropdown

[brendan-kellam]

Summary by CodeRabbit

• New Features
  • The settings dropdown now displays the commit SHA associated with the current deployment, providing a direct link to the exact GitHub commit for improved version identification and debugging.

[coderabbitai]

Walkthrough

This pull request adds a feature that displays the commit SHA of a deployment in the application's settings dropdown. The GitHub commit SHA is passed through the Docker build process, configured as an environment variable, and displayed as a clickable link in the UI.

Changes

Cohort / File(s)	Summary
Build & Infrastructure .github/workflows/_build.yml, Dockerfile	Adds NEXT_PUBLIC_BUILD_COMMIT_SHA as a Docker build argument in the workflow and propagates it across Dockerfile stages (web-builder and runner).
Environment Configuration packages/shared/src/env.client.ts	Adds NEXT_PUBLIC_BUILD_COMMIT_SHA as an optional environment variable to the client-side environment schema and runtime mapping.
UI Implementation packages/web/src/app/[domain]/components/settingsDropdown.tsx	Displays the commit SHA as a linked GitHub commit URL in the settings dropdown when the environment variable is available. Updates display text capitalization.
Documentation CHANGELOG.md	Documents the new settings dropdown feature showing commit SHA in the Unreleased section.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'chore(web): Display commit SHA in settings dropdown' clearly and specifically describes the main change across all modified files, which adds functionality to display the build commit SHA in the settings dropdown UI.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch bkellam/baked-version

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[claude]

Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

[claude]

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Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

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