feat(envs): add bulk stop action

[rmnbrd]

Summary

Issue: QOV-1958

This PR adds a bulk action to Stop a bunch of selected environments.

Screenshots / Recordings

Testing

• Changes tested locally in the relevant Console's pages and Storybooks
• yarn test or yarn test -u (if you need to regenerate snapshots)
• yarn format
• yarn lint

PR Checklist

• I followed naming, styling, and TypeScript rules (see .cursor/rules)
• I performed a self-review (diff inspected, dead code removed)
• I titled the PR using Conventional Commits with a scope when possible (e.g. feat(service): add new Terraform service) - required for semantic-release
• I only kept necessary comments, written in English (watch for useless AI comments)
• I involved a designer to validate UI changes if I am not a designer
• I covered new business logic with tests (unit)
• I confirmed CI is green (Codecov red can be accepted)
• I reviewed and executed locally any AI-assisted code

[codecov]

Codecov Report

❌ Patch coverage is 64.40678% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.47%. Comparing base (4f20e6e) to head (a289f2a).
⚠️ Report is 1 commits behind head on staging.

Files with missing lines	Patch %	Lines
.../src/lib/environments-table/environments-table.tsx	38.09%	12 Missing and 1 partial ⚠️
...-table/environment-section/environment-section.tsx	66.66%	3 Missing and 4 partials ⚠️
...vironments-table/environments-table-action-bar.tsx	94.11%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #2741      +/-   ##
===========================================
- Coverage    45.97%   41.47%   -4.51%     
===========================================
  Files         1150      244     -906     
  Lines        24806     7118   -17688     
  Branches      7384     2202    -5182     
===========================================
- Hits         11404     2952    -8452     
+ Misses       11405     3635    -7770     
+ Partials      1997      531    -1466     

Flag	Coverage Δ
unittests	41.47% <64.40%> (-4.51%)	⬇️

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[Copilot]

Pull request overview

This PR adds multi-row selection to the Environments table and introduces a bottom action bar that enables a bulk Stop selected environments action (with confirmation) for the selected environments in a project.

Changes:

• Add per-row and per-section selection (checkboxes) to environment rows and sections.
• Introduce a fixed “selection action bar” with a bulk stop action and confirmation modal.
• Update/extend unit tests to account for the new components and selection interactions.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
libs/domains/environments/feature/src/lib/environments-table/environments-table.tsx	Tracks selected environment IDs and renders the new bulk-action bar.
libs/domains/environments/feature/src/lib/environments-table/environments-table.spec.tsx	Adds mocking for the new action bar (and should also mock the newly imported className constants).
libs/domains/environments/feature/src/lib/environments-table/environments-table-action-bar.tsx	New action bar component that performs bulk stop via confirmation + per-env mutation calls.
libs/domains/environments/feature/src/lib/environments-table/environments-table-action-bar.spec.tsx	Adds basic render/count tests for the action bar.
libs/domains/environments/feature/src/lib/environments-table/environment-section/environment-section.tsx	Adds header + row selection checkboxes and exports shared layout className constants.
libs/domains/environments/feature/src/lib/environments-table/environment-section/environment-section.spec.tsx	Adds tests for row/section selection behavior (checkbox clicks shouldn’t navigate).

Comments suppressed due to low confidence (1)

libs/domains/environments/feature/src/lib/environments-table/environments-table.spec.tsx:37

• This test mocks ./environment-section/environment-section, but EnvironmentsTable now imports several CSS className constants from that module. Because the mock doesn't export them, those imports become undefined during tests (leading to classNames like "undefined w-full ..." and potentially hiding regressions). Export stub values for the new constants in the mock.

jest.mock('./environment-section/environment-section', () => ({
  __esModule: true,
  EnvironmentSection: ({ type, items }: EnvironmentSectionMockProps) => (
    <div data-testid="environment-section">{`section:${type}:${items.map(({ name }) => name).join(',')}`}</div>
  ),

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