Add RBAC support with roles, permissions, and session management. Implement middleware for authentication and CSRF protection. Enhance audit logging with additional fields. Update HTTP handlers and routes for new features.

migrations/0004_shares.sql

@@ -0,0 +1,9 @@
+-- 0004_shares.sql
+CREATE TABLE IF NOT EXISTS shares (
+  id TEXT PRIMARY KEY,
+  name TEXT,
+  path TEXT,
+  type TEXT,
+  options TEXT,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);