feat: add php-fpm status

[Kevin Rudde (kevinrudde)]

This pull request adds a new handler to the store_caddy_config.yaml file to support Prometheus scraping of PHP-FPM metrics in openmetrics format. This allows Prometheus to collect PHP-FPM status data correctly.

Monitoring integration:

• Added a new handler on port :9000 for the /‐/fpm/status endpoint, rewriting the path to include ?openmetrics and configuring a FastCGI reverse proxy to the PHP-FPM socket, enabling Prometheus to scrape PHP-FPM metrics in the required format.

[Copilot]

Pull request overview

This PR aims to enable Prometheus scraping of PHP-FPM metrics in OpenMetrics format by adding a dedicated Caddy handler for the PHP-FPM status endpoint, and it removes the previously auto-attached PHP-FPM exporter sidecar approach from the chart’s defaults.

Changes:

• Added a dedicated Caddy site/handler for /-/fpm/status that rewrites to ?openmetrics and proxies to PHP-FPM via FastCGI.
• Removed the chart’s automatic injection of the php-fpm-exporter sidecar (now only user-specified extraContainers are rendered).
• Bumped the Shopware chart version.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
charts/shopware/templates/store_caddy_config.yaml	Adds a new Caddy handler to serve PHP-FPM status in OpenMetrics format via FastCGI.
charts/shopware/templates/store.yaml	Removes auto-injected exporter sidecar and adds a new spec.lock block.
charts/shopware/values.yaml	Updates comments to indicate exporter sidecar isn’t needed (but currently conflicts with the remaining example).
charts/shopware/Chart.yaml	Increments chart/app version to reflect the change.

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