Implement: Minutes and Decisions — Core T3

[rubenvdlinde]

OpenSpec Change: p2-minutes-and-decisions-core-t3

Spec path: openspec/changes/p2-minutes-and-decisions-core-t3

Generated from Specter (17 features).

[rubenvdlinde]

Draft PR created at #113 - Ready for review

Implementation complete:
✅ Backend services: ActionItemAnalyticsService, LiveDecisionService, ALVMinutesService, ActionItemExtractionService, DecisionNotificationService
✅ Controllers: AnalyticsController, LiveMeetingController, extended MinutesController
✅ API routes: All 6 new endpoints registered
✅ DI container: All services registered
✅ PHPUnit tests: 20+ test methods across all services
✅ Vue components: ActionItemAnalyticsWidget, LiveDecisionPanel, ALVMinutesActions
✅ Translations: Dutch (nl.json) and English (en.json) keys added
✅ Quality: PHP syntax verified with zero errors