feat: Implement LTI deep linking, live sessions, predictive analytics, and portfolios with associated UI and database migrations.

services/lms-service/migrations/20260226020000_live_learning.sql

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+CREATE TABLE meetings (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    organization_id UUID NOT NULL REFERENCES organizations(id),
+    course_id UUID NOT NULL REFERENCES courses(id),
+    title TEXT NOT NULL,
+    description TEXT,
+    provider TEXT NOT NULL DEFAULT 'jitsi',
+    meeting_id TEXT NOT NULL,
+    start_at TIMESTAMPTZ NOT NULL,
+    duration_minutes INTEGER NOT NULL,
+    join_url TEXT,
+    is_active BOOLEAN NOT NULL DEFAULT true,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Index for quick lookup of course meetings
+CREATE INDEX idx_meetings_course ON meetings(course_id);
+
+-- Trigger for updated_at
+CREATE TRIGGER update_meetings_updated_at
+BEFORE UPDATE ON meetings
+FOR EACH ROW
+EXECUTE FUNCTION update_updated_at_column();