Fix/entrypoint

[gothick]

No description provided.

[Copilot]

Pull request overview

This PR updates the container startup and build process to ensure all dependent services are ready before the app starts and that filesystem permissions for uploaded/media assets are correctly configured.

Changes:

• Chains the Elasticsearch wait-for-it.sh check together with the DB and Redis checks so the application only proceeds once all three services are available.
• Extends the Dockerfile setup to create a media directory and to set appropriate permissions and ownership (www-data:www-data) for both uploads and media directories.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docker/entrypoint.sh	Fixes the wait sequence so DB, Redis, and Elasticsearch all must be ready before running migrations.
Dockerfile	Ensures upload and media directories exist with correct permissions and ownership for runtime access.

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