Polish report producer disconnected state

[DeliciousBuding]

Summary

• show a public-safe Runtime disconnected producer context when job detail hydration fails
• make report audit producer context print/export friendly by avoiding page breaks and removing log-tail scroll clipping in print
• sync the Platform roadmap current baseline and remove the completed P1 audit-loop item

Validation

• python scripts/check_public_boundary.py
• npm --prefix apps/web run lint (passes with existing 12 warnings)
• npm --prefix apps/web run test
• npm --prefix apps/web run build
• go -C apps/api-go test ./...
• go -C apps/api-go build ./cmd/platform-api
• git diff --check
• Playwright smoke: /workspace/reports/black-box?view=audit&job=job_demo_004 shows Runtime disconnected without raw connection text

[gemini-code-assist]

Code Review

This pull request implements a disconnected state for the report producer context when job details are unavailable, ensuring the UI provides clear feedback through localized warning messages and badges. The changes include updates to the data fetching logic to return an unavailable status on failure, UI enhancements with print-specific CSS optimizations, and comprehensive test coverage for these new states. I have no feedback to provide.

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