Added lading examples

CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+PHP SDK for FiscalAPI — a Mexican electronic invoicing (CFDI) platform. Package: `fiscalapi/fiscalapi`, licensed MPL-2.0, requires PHP >= 7.4.
+
+## Build & Dependencies
+
+```bash
+composer install          # Install dependencies
+composer dump-autoload    # Regenerate autoloader after namespace/class changes
+```
+
+No test suite exists in the repo. No linting or static analysis tools are configured.
+
+## Architecture
+
+**Two-layer design:** HTTP layer (`src/Http/`) and Service layer (`src/Services/`).
+
+### HTTP Layer (`Fiscalapi\Http`)
+- `FiscalApiSettings` — Configuration object (API URL, key, tenant, version, debug, SSL, timezone)
+- `FiscalApiHttpClient` — Guzzle wrapper that auto-injects `X-API-KEY`, `X-TENANT-KEY`, `X-TIME-ZONE` headers. Debug mode logs requests/responses and disables SSL.
+- `FiscalApiHttpResponse` — PSR-7 response wrapper with JSON caching
+
+### Service Layer (`Fiscalapi\Services`)
+- `AbstractService` — Base CRUD: `list()`, `get()`, `create()`, `update()`, `delete()`. All services extend this.
+- `FiscalApiClient` — Main entry point. Lazy-loads 9 services via getters (e.g., `getInvoiceService()`).
+- `FiscalApiClientFactory` — Static factory with instance caching keyed by `apiKey:tenant:apiUrl`.
+
+### Notable Service Implementations
+- **InvoiceService** — Type-based routing: `'I'` → `income`, `'E'` → `credit-note`, `'P'` → `payment`. Has specialized methods: `cancel()`, `getPdf()`, `getXml()`, `send()`, `getStatus()`.
+- **CatalogService** — Custom `search(catalogName, searchText)` and `getById(catalogName, id)` methods. Min search term: 4 chars.
+- **DownloadCatalogService** — Throws `BadMethodCallException` for standard CRUD; uses `getList()` and `listCatalog()` instead.
+- **DownloadRequestService** — Methods for downloading XMLs, metadata, ZIP packages, and SAT request/response files.
+
+## Coding Conventions
+
+- `declare(strict_types=1)` in all files
+- PSR-4 autoloading: `Fiscalapi\` → `src/`
+- Explicit return types and parameter type hints throughout
+- Classes: PascalCase, Methods: camelCase, Constants: UPPER_SNAKE_CASE
+- Interfaces live alongside implementations in the same directory
+- Error handling: `InvalidArgumentException` (validation), `RuntimeException` (HTTP errors with chained exceptions), `BadMethodCallException` (unsupported operations)
+
+## Configuration
+
+Environment variables used in examples and Laravel integration:
+```
+FISCALAPI_URL, FISCALAPI_KEY, FISCALAPI_TENANT, FISCALAPI_DEBUG,
+FISCALAPI_VERIFY_SSL, FISCALAPI_API_VERSION, FISCALAPI_TIMEZONE
+```
+
+Default timezone: `America/Mexico_City`. API version: `v4`.
+
+## CI/CD
+
+GitHub Actions workflow (`.github/workflows/CICD.yml`) triggers on tags to update Packagist via API token.

composer.json

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 {
     "name": "fiscalapi/fiscalapi",
     "description": "SDK de PHP para FiscalAPI",
+    "version": "4.0.384",
     "type": "library",
     "license": "MPL-2.0",
     "homepage": "https://www.fiscalapi.com",