fix: address Section 5 case detail UAT issues

[Taleef7]

Summary

• Adds an escalation confirmation dialog on case detail before /escalate is called.
• Fixes outreach delivery status so the initial send returns and displays the real delivery result (SIMULATED on the demo stack) without requiring manual "Mark sent".
• Adds a shared JSON/HTML audit packet export control for case, run, and measure-version packets.
• Corrects Section 5 and Section 11 walkthrough-guide inaccuracies and adds the dated journal entry.

Verification

• backend/gradlew.bat test --tests com.workwell.caseflow.CaseUpsertIntegrationTest
• backend/gradlew.bat --no-daemon test --tests com.workwell.web.CaseControllerTest --tests com.workwell.web.AuditorControllerTest
• frontend/corepack pnpm lint (passes with existing test/mocks/next-font.ts warning)
• frontend/corepack pnpm test (40/40)
• frontend/corepack pnpm build
• Playwright local confirmation with mocked API data: escalation waits for confirmation, outreach badge updates to Simulated, and case/run/measure packet exports honor format=html.

Note

• Attempted full backend/gradlew.bat test; it did not return before the 15-minute timeout, so the issue-specific backend checks above are the fresh passing evidence for this branch.

Closes #28

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Project	Deployment	Actions	Updated (UTC)
workwell-measure-studio	Ready	Preview, Comment	May 20, 2026 6:48pm

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[Taleef7]

Reviewed the Section 5 diff against the UAT items. I did not find any blocking code issues in this pass. The escalation confirmation, simulated delivery status propagation, shared audit-packet format selector, and guide updates look aligned with the stated acceptance criteria. I would still wait for the pending backend CI job to finish before merging.