refacto: add build and cleanup file structure

src/organizations.sql

@@ -0,0 +1,22 @@
+-- =============================================================================
+-- ORGANIZATIONS
+-- =============================================================================
+-- Organizations are first-class entities in Multi-OrBAC
+-- Each organization has its own policy space
+
+CREATE TABLE morbac.orgs (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name TEXT NOT NULL UNIQUE,
+    parent_id UUID REFERENCES morbac.orgs(id) ON DELETE CASCADE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    metadata JSONB DEFAULT '{}'::jsonb
+);
+
+CREATE INDEX idx_orgs_name ON morbac.orgs(name);
+CREATE INDEX idx_orgs_parent ON morbac.orgs(parent_id);
+
+COMMENT ON TABLE morbac.orgs IS 'Organizations - first-class entities in Multi-OrBAC with hierarchy support';
+COMMENT ON COLUMN morbac.orgs.id IS 'Unique organization identifier';
+COMMENT ON COLUMN morbac.orgs.name IS 'Organization name (unique)';
+COMMENT ON COLUMN morbac.orgs.parent_id IS 'Parent organization for hierarchical organizations';
+COMMENT ON COLUMN morbac.orgs.metadata IS 'Optional metadata for organization';