feat(postgraphile)!: use ecdsa key

[dargmuesli]

This pull request updates the authentication mechanism across multiple development and production services by switching from RSA (RS256) to ECDSA (ES256) JWT public keys. The changes ensure consistency in key usage and configuration, and introduce the new ECDSA public key file.

[Copilot]

Pull request overview

Switches JWT authentication from RSA (RS256) to ECDSA (ES256) across development and production compose configurations, replacing the public key file and updating all volume mount references.

Changes:

• Replaced jwtRS256.key.pub with new jwtES256.key.pub public key file
• Updated all compose volume mounts to reference the new key file
• Added key_type: ecdsa to the dargstack secret configuration

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/development/postgraphile/configurations/jwtRS256.key.pub	Removed old RSA public key
src/development/postgraphile/configurations/jwtES256.key.pub	Added new ECDSA public key
src/development/postgraphile/compose.yaml	Updated key mount path and added key_type: ecdsa
src/development/vibetype/compose.yaml	Updated key mount path to ES256
src/development/reccoom/compose.yaml	Updated key mount path to ES256
src/production/vibetype/compose.yaml	Updated commented-out key mount path to ES256

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