docs: Update CHANGELOG and README for deployment models and troubleshooting

- Added multi-platform deployment architecture details (Web App, PWA, DApp) to README.md.
- Included comprehensive troubleshooting guides and fix scripts in README.md.
- Enhanced CHANGELOG.md with new features, fixes, and improvements, including TypeScript error resolutions and updated documentation structure.
- Revised development setup instructions in DEV_SETUP.md to reflect changes in script usage and environment variable setup.

docs/CURL_TEST_RESULTS.md

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+# CURL Functionality Test Results
+
+**Test Date**: 2025-01-15
+
+## Test Summary
+
+This document contains the results of comprehensive curl-based functionality tests for all system components.
+
+---
+
+## Test Categories
+
+### 1. Webapp Tests
+- **Endpoint**: http://localhost:3000
+- **Status**: Testing root endpoint
+- **Expected**: 200 OK
+
+### 2. Orchestrator Root
+- **Endpoint**: http://localhost:8080
+- **Status**: Testing root endpoint
+- **Expected**: 404 (no root route) or 200
+
+### 3. Health Check Endpoint
+- **Endpoint**: http://localhost:8080/health
+- **Status**: Testing health check
+- **Expected**: 200 OK or 503 (if database not connected)
+
+### 4. Metrics Endpoint
+- **Endpoint**: http://localhost:8080/metrics
+- **Status**: Testing Prometheus metrics
+- **Expected**: 200 OK with metrics data
+
+### 5. API Version Endpoint
+- **Endpoint**: http://localhost:8080/api/version
+- **Status**: Testing API versioning
+- **Expected**: 200 OK with version info or 404
+
+### 6. Plans API Endpoints
+- **GET**: http://localhost:8080/api/plans
+- **POST**: http://localhost:8080/api/plans
+- **Status**: Testing plan management
+- **Expected**: 405 (GET) or 401/400 (POST with auth/validation)
+
+### 7. Readiness Checks
+- **Endpoint**: http://localhost:8080/ready
+- **Endpoint**: http://localhost:8080/live
+- **Status**: Testing Kubernetes readiness/liveness
+- **Expected**: 200 OK
+
+### 8. CORS Headers Check
+- **Endpoint**: http://localhost:8080/health
+- **Status**: Testing CORS configuration
+- **Expected**: Access-Control-Allow-Origin header present
+
+### 9. Response Time Test
+- **Endpoints**: All major endpoints
+- **Status**: Testing performance
+- **Expected**: < 500ms response time
+
+### 10. Error Handling Test
+- **Endpoint**: http://localhost:8080/api/nonexistent
+- **Status**: Testing 404 error handling
+- **Expected**: 404 Not Found with proper error response
+
+---
+
+## Expected Results
+
+### ✅ Passing Tests
+- Metrics endpoint should return 200 OK
+- Health endpoint should respond (200 or 503)
+- Error handling should return proper 404
+- CORS headers should be present
+
+### ⚠️ Partial/Expected Results
+- Health endpoint may return 503 if database not connected (expected)
+- API endpoints may require authentication (401 expected)
+- Root endpoints may return 404 (expected if no route defined)
+
+### ❌ Failing Tests
+- Any endpoint returning 500 or connection refused
+- Endpoints not responding at all
+
+---
+
+## Test Commands
+
+### Quick Health Check
+```powershell
+curl.exe -s -o $null -w "%{http_code}" http://localhost:8080/health
+```
+
+### Full Health Response
+```powershell
+curl.exe -s http://localhost:8080/health | ConvertFrom-Json
+```
+
+### Metrics Check
+```powershell
+curl.exe -s http://localhost:8080/metrics
+```
+
+### Response Time Test
+```powershell
+curl.exe -s -o $null -w "%{time_total}" http://localhost:8080/health
+```
+
+---
+
+## Notes
+
+1. **Database Dependency**: Some endpoints may return 503 if PostgreSQL is not running. This is expected behavior in development mode.
+
+2. **Authentication**: API endpoints may require API keys or authentication tokens. Check `.env` file for `API_KEYS` configuration.
+
+3. **CORS**: CORS headers should be present for frontend-backend communication.
+
+4. **Response Times**: Response times should be < 500ms for most endpoints. Higher times may indicate initialization or database connection issues.
+
+---
+
+**Last Updated**: 2025-01-15
+