docs: add CHANGELOG and document "all" scope alias in README

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: francescobianco

CHANGELOG.md

@@ -0,0 +1,30 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased] - 0.2.0
+
+### Added
+
+- **Scope alias `all`** — passing `--scopes all` when creating a token now expands to every available scope returned by the API. The keyword is case-insensitive (`ALL`, `All`, etc. are all valid).
+
+  ```bash
+  openapi token create --scopes all
+  ```
+
+---
+
+## [0.1.0] - 2026-02-16
+
+### Added
+
+- First public release of the Openapi CLI
+- Token management: `create`, `list`, `revoke`, `scopes`, `credit`
+- Scope aliases — use short service names instead of full scope strings when creating tokens
+- Method filtering for scope aliases (`post:sms`, `get:company`, …)
+- Sandbox mode via `-S` / `--sandbox` flag
+- Service commands: `ai`, `automotive`, `cadastre`, `certified-email`, `chamber-of-commerce`, `company`, `docuengine`, `domains`, `esignature`, `exchange-rate`, `geocoding`, `invoice`, `massive-rem`, `paying-bills`, `pdf`, `postal-service`, `real-estate`, `risk`, `sdi`, `sms`, `time-stamping`, `trust`, `visengine`, `zip-codes`
+- `info` command to verify environment variables and token scopes

README.md

@@ -129,6 +129,7 @@ Each API service is mapped to an alias name. When you use an alias, it automatic
 
 | Alias | Service | Domain |
 |---|---|---|
+| `all` | **All services** _(special keyword)_ | — |
 | `ai` | AI language models | ai.openapi.com |
 | `automotive` | Automotive data | automotive.openapi.com |
 | `cadastre` | Italian cadastral data | catasto.openapi.it |
@@ -163,6 +164,9 @@ openapi token create --scopes "sms"
 
 # Multiple services
 openapi token create --scopes "sms,company"
+
+# All available scopes (special keyword)
+openapi token create --scopes "all"
 ```
 
 ### Method filtering