docs: Enhance development setup documentation and update environment variable validation

- Added a new section in CURRENT_STATUS.md detailing prerequisites and quick start instructions for development setup.
- Updated environment variable validation to include defaults for missing variables in env.ts.
- Improved error handling in errorHandler.ts for better validation feedback.
- Made various code adjustments across services to ensure robustness and clarity.

orchestrator/src/health/health.ts

@@ -57,7 +57,7 @@ export async function healthCheck(): Promise<HealthStatus> {
   const allHealthy = 
     checks.database === "up" && 
     checks.memory !== "critical" && 
-    checks.disk !== "critical" &&
+    (checks.disk === "ok" || checks.disk === "warning") &&
     dependencies.every((d) => d.status === "healthy");
 
   return {