Initial commit: Clean workspace without heavy binaries

services/cms-service/migrations/20231219000000_initial_schema.sql

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+-- Initial schema for courses, modules, and lessons
+CREATE TABLE courses (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    title TEXT NOT NULL,
+    description TEXT,
+    instructor_id UUID NOT NULL,
+    start_date TIMESTAMPTZ,
+    end_date TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE modules (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    course_id UUID NOT NULL REFERENCES courses(id) ON DELETE CASCADE,
+    title TEXT NOT NULL,
+    position INT NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE lessons (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    module_id UUID NOT NULL REFERENCES modules(id) ON DELETE CASCADE,
+    title TEXT NOT NULL,
+    content_type TEXT NOT NULL,
+    content_url TEXT,
+    position INT NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE audit_logs (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL,
+    action TEXT NOT NULL,
+    entity_type TEXT NOT NULL,
+    entity_id UUID NOT NULL,
+    changes JSONB NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Trigger to update updated_at
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = NOW();
+    RETURN NEW;
+END;
+$$ language 'plpgsql';
+
+CREATE TRIGGER update_courses_updated_at BEFORE UPDATE ON courses FOR EACH ROW EXECUTE PROCEDURE update_updated_at_column();

services/cms-service/migrations/20231219000001_lesson_metadata.sql

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+-- Add transcription and metadata columns to lessons table
+ALTER TABLE lessons ADD COLUMN transcription JSONB;
+ALTER TABLE lessons ADD COLUMN metadata JSONB;

services/cms-service/migrations/20231219000002_assets_table.sql

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+CREATE TABLE assets (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    filename TEXT NOT NULL,
+    storage_path TEXT NOT NULL,
+    mimetype TEXT NOT NULL,
+    size_bytes BIGINT NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);