docs: Rebuild documentation as enterprise-grade TLAS platform

- Migrate from custom HTTP server to VitePress framework
- Rename project to Tokenized License Approval System (TLAS)
- Add comprehensive documentation for all stakeholders:
  - Business: Executive summary, value proposition, governance
  - Operations: Infrastructure, installation, monitoring, backup
  - Departments: User guide, workflows, verification, issuance
  - Developers: API reference, authentication, webhooks, SDKs
  - Compliance: OWASP, DPDP Act, IT Act, audit framework
- Add modern theme with dark mode and full-text search
- Update Dockerfile for VitePress build process

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Documentation/developers/errors.md

@@ -0,0 +1,88 @@
+# Error Handling
+
+## Error Response Format
+
+```json
+{
+  "success": false,
+  "error": {
+    "code": "VALIDATION_ERROR",
+    "message": "Human-readable error message",
+    "details": [
+      { "field": "email", "message": "Invalid email format" }
+    ],
+    "requestId": "req_abc123"
+  }
+}
+```
+
+## HTTP Status Codes
+
+| Code | Meaning |
+|------|---------|
+| 200 | Success |
+| 201 | Created |
+| 400 | Bad Request |
+| 401 | Unauthorized |
+| 403 | Forbidden |
+| 404 | Not Found |
+| 409 | Conflict |
+| 422 | Validation Error |
+| 429 | Rate Limited |
+| 500 | Internal Error |
+
+## Error Codes
+
+### Authentication Errors
+
+| Code | Description |
+|------|-------------|
+| `AUTH_INVALID_TOKEN` | Token is invalid or malformed |
+| `AUTH_EXPIRED_TOKEN` | Token has expired |
+| `AUTH_MISSING_TOKEN` | No token provided |
+| `AUTH_INSUFFICIENT_SCOPE` | Token lacks required permissions |
+
+### Validation Errors
+
+| Code | Description |
+|------|-------------|
+| `VALIDATION_ERROR` | Input validation failed |
+| `VALIDATION_REQUIRED` | Required field missing |
+| `VALIDATION_FORMAT` | Invalid field format |
+| `VALIDATION_RANGE` | Value out of allowed range |
+
+### Resource Errors
+
+| Code | Description |
+|------|-------------|
+| `RESOURCE_NOT_FOUND` | Requested resource doesn't exist |
+| `RESOURCE_CONFLICT` | Resource state conflict |
+| `RESOURCE_LOCKED` | Resource is locked |
+
+### Business Logic Errors
+
+| Code | Description |
+|------|-------------|
+| `APPLICATION_INVALID_STATE` | Action not allowed in current state |
+| `DOCUMENT_TYPE_MISMATCH` | Wrong document type |
+| `WORKFLOW_ERROR` | Workflow processing error |
+
+## Handling Errors
+
+```javascript
+try {
+  const result = await client.applications.create(data);
+} catch (error) {
+  if (error.code === 'VALIDATION_ERROR') {
+    // Handle validation errors
+    error.details.forEach(d => console.log(`${d.field}: ${d.message}`));
+  } else if (error.code === 'AUTH_EXPIRED_TOKEN') {
+    // Refresh token and retry
+    await client.refreshToken();
+    return retry();
+  } else {
+    // Log and report
+    console.error('Unexpected error:', error.requestId);
+  }
+}
+```