feat: add legal-status, FRIA, and incident MCP tools

[PicoWorx]

Summary

Adds the v1.2.0 MCP surface for stronger legal-status grounding and Lawvable skill integration:

• New euaiact_get_legal_status tool for current-law vs provisional Digital Omnibus status, adoption steps, communication guardrails, last verification date, and official sources
• New euaiact_assess_fria_trigger tool for Art. 27 FRIA trigger checks, DPIA interaction, notification notes, and current-law/provisional timing
• New euaiact_triage_serious_incident tool for Art. 73 reportability and 2-day / 10-day / 15-day reporting buckets
• Extends euaiact_check_deadlines with current_law_date, provisional_date_if_adopted, binding_status, last_verified_at, structured sources, knowledge_version, and last_content_update
• Adds content freshness metadata to /health and the timeline resource
• Bumps package/server/smithery versions to 1.2.0
• Rebuilds and commits dist/ to keep package artifacts in sync

Verification

• npm run build
• node test.mjs -> 132 passed, 0 failed

Notes

The Digital Omnibus status remains explicitly provisional: current-law dates remain authoritative until formal adoption and Official Journal publication.