feat: enable apache expires module for caching assets

[ps-20x]

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[gemini-code-assist]

Summary of Changes

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This pull request introduces a feature to enhance web asset caching by enabling the Apache expires module during the application's post-installation phase. This modification is designed to leverage browser caching mechanisms, leading to faster content delivery and an optimized user experience.

Highlights

• Apache Expires Module Enabled: The post-install.sh script has been updated to enable the Apache expires module. This change is crucial for implementing client-side caching policies, which will improve asset loading times and reduce server load by allowing browsers to cache static content more effectively.

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[gemini-code-assist]

Code Review

This pull request enables the Apache expires module to improve asset caching. The change is functionally correct, but it introduces a maintainability issue by placing the logic within a function and code block specifically named for remoteip configuration. My review includes a suggestion to refactor this for better code clarity and long-term maintenance.

[gemini-code-assist]

Adding the expires module here makes the function add_apache_remoteip_config and the placeholder # SPIN_APACHE_REMOTEIP_BLOCK's names misleading, as they now handle more than just remoteip configuration. This can create confusion and impact maintainability. Consider refactoring this by renaming the function and placeholder to something more generic (e.g., configure_apache and SPIN_APACHE_CONFIG_BLOCK) and updating the log message on line 84 to reflect the change.