[ayrton]

The API is removing immutable and extension from Postgres parameters. This stops the CLI from relying on either field:

• pscale branch resize --parameters validates against the changeable parameters only (internal=false), so an internal parameter now fails the same way an unknown one does, with a message pointing to pscale branch parameters list --internal=false.
• pscale branch parameters list drops the immutable column. --internal already filters on the server.
• PostgresParameter and PostgresBouncerParameter drop the two fields.

[cursor]

Risk: low. Approved. Cursor Bugbot passed with no findings, Cursor Security Agent was not running, and this is a narrow parameter-catalog change with no human review required.

  

_{Sent by Cursor Approval Agent: cli-reviewer}