feat(license): add command and documentation for LICENSE file generation

Signed-off-by: Felipe Sayão Lobato Abreu <github@mentordosnerds.com>

Author: coisa

README.md

@@ -77,6 +77,9 @@ composer dev-tools skills
 # Merges and synchronizes .gitignore files
 composer dev-tools gitignore
 
+# Generates a LICENSE file from composer.json license information
+composer dev-tools license
+
 # Installs and synchronizes dev-tools scripts, GitHub Actions workflows,
 # .editorconfig, .gitignore rules, packaged skills, and the repository wiki
 # submodule in .github/wiki

docs/api/commands.rst

@@ -49,6 +49,9 @@ resolution, configuration fallback, PSR-4 lookup, and child-command dispatch.
      - ``dev-tools:sync``
      - Synchronizes consumer-facing scripts, automation assets, and packaged
        skills.
-   * - ``FastForward\DevTools\Command\GitIgnoreCommand``
-     - ``gitignore``
-     - Merges and synchronizes .gitignore files.
+    * - ``FastForward\DevTools\Command\GitIgnoreCommand``
+      - ``gitignore``
+      - Merges and synchronizes .gitignore files.
+    * - ``FastForward\DevTools\Command\CopyLicenseCommand``
+      - ``license``
+      - Generates a LICENSE file from composer.json license information.

docs/running/specialized-commands.rst

@@ -199,3 +199,22 @@ Important details:
 - duplicates are removed and entries are sorted alphabetically;
 - it uses the Reader, Merger, and Writer components from the GitIgnore
   namespace.
+
+``license``
+----------
+
+Generates a LICENSE file from composer.json license information.
+
+.. code-block:: bash
+
+   composer dev-tools license
+
+Important details:
+
+- it reads the ``license`` field from ``composer.json``;
+- it supports common open-source licenses (MIT, Apache-2.0, BSD-2-Clause,
+  BSD-3-Clause, GPL-3.0, LGPL-3.0, and MPL-2.0);
+- it resolves placeholders such as ``[year]``, ``[author]``, and
+  ``[project]`` using information from ``composer.json``;
+- it uses template files from ``resources/license-templates/``;
+- it skips generation if a LICENSE file already exists.