fix(plugin-new): add Jest environment dependency

[gashcrumb]

Summary

• add jest-environment-jsdom to generated plugin dev dependencies
• cover the generated dependency in plugin new tests
• prepare the 2.0.8 patch release

Verification

• CI=true yarn backstage-cli package test
• yarn tsc
• yarn lint:check
• yarn prettier:check
• generated RHDH 2.1 backend plugin: yarn install && CI=true yarn test

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[fullsend-ai-review]

🤖 Finished Review · ✅ Success · Started 1:09 PM UTC · Completed 1:20 PM UTC

Commit: 0c55cec · View workflow run →

Runtime: claude · Model: sonnet → claude-sonnet-4-6 · Effort: high · Cost: $1.91

[fullsend-ai-review]

Risk Assessment: moderate (2/5)

Details

Small patch PR (7 files, 17 lines) adding a Jest dependency to plugin templates and covering it with tests; no protected paths, CI workflows, or security-sensitive changes touched, yielding a composite of 0.62x1.88 + 0.38x2.0 = 1.93, rounded to 2.

[fullsend-ai-review]

Looks good to me

[PatAKnight]

LGTM

[fullsend-ai-retro]

🤖 Finished Retro · ✅ Success · Started 1:26 PM UTC · Completed 1:33 PM UTC

Commit: 0c55cec · View workflow run →

Runtime: claude · Model: opus → claude-opus-4-6 · Effort: high · Cost: $1.90

[fullsend-ai-retro]

Retro: PR #204 — fix(plugin-new): add Jest environment dependency

Workflow: Human-authored fix PR by @gashcrumb → review agent (claude-sonnet-4-6, high effort, $1.91, ~11 min) → human review (@PatAKnight, "LGTM") → merged in ~16 minutes. No rework iterations.

Outcome: Clean workflow. The review agent correctly assessed this as a moderate-risk (2/5) change, approved without inline findings, and the human reviewer concurred. The change adds the missing jest-environment-jsdom dev dependency to three plugin templates, includes test coverage, bumps the version to 2.0.8, and updates CHANGELOG. All CI checks passed.

No new proposals filed. This workflow executed efficiently with appropriate outcomes at every stage.

Evidence for existing issues

• Populate empty AGENTS.md sections with RHDH domain context and CLI patterns #199 (Populate AGENTS.md): The review agent approved without domain context about template dependency versioning patterns (e.g., whether ^29.7.0 should track the project's own Jest version). This is a minor gap — the approval was correct regardless — but populated AGENTS.md sections would enable richer review reasoning on template changes.
• Track autonomy readiness: review agent fully covered human review on CI eval shell-script change fullsend-ai/fullsend#7184 (Autonomy readiness): The human reviewer's approval added no analytical insight beyond the agent's. For this class of change (well-tested template bug fix, +16/−1, 7 files), the review agent fully covered the human review — further evidence supporting increased autonomy on low-risk, well-tested changes.
• SonarCloud reports 0% coverage despite tests being generated and run #203 (SonarCloud 0% coverage): SonarCloud again reported 0.0% coverage on new code, consistent with the pipeline gap already identified.