Umstellung auf FOR-Namespace

[aeberhard]

• Umstellung auf FOR-Namespace
• Console-Commands in package.yml an FOR-Namespace angepasst

[Copilot]

Pull Request Overview

This PR migrates the demo_onepage package to use the FriendsOfRedaxo namespace structure, updating the codebase from global namespace to a properly namespaced implementation.

Key changes:

• Migration from global namespace to FriendsOfRedaxo\DemoOnepage namespace
• Update of console command references in package.yml to use the new namespaced class names
• Version bump from 1.9.0 to 1.10.0

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
package.yml	Updates version and console command class references to use new namespace
lib/demo_onepage.php	Adds namespace declaration and required use statements
lib/console/demo_onepage_install.php	Adds namespace and use statement for rex_console_command
lib/console/demo_onepage_dumptables.php	Adds namespace and use statement for rex_console_command
lib/console/demo_onepage_dumpfiles.php	Adds namespace and use statement for rex_console_command
pages/install.php	Adds use statement for namespaced rex_demo_onepage class
install.php	Adds use statement for namespaced rex_demo_onepage class
CHANGELOG.md	Documents the namespace migration changes

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