fix(variable:create): resolve "-e ." default-environment placeholder

[pjcdawkins]

Problem

Creating a variable with -e . selected the default environment correctly, then crashed:

Selecting default environment (indicated by .)
Selected environment: main (type: production)

In Field.php line 252:

  . is not one of: dev1, dirauthtest, main, production

Cause

variable:create builds a ConsoleForm whose environment field is an OptionsField. During resolveOptions() the form re-reads the raw --environment option value (.) and validates it against the list of real environment IDs, before normalization. The selector had already resolved . to the default environment, but the form validated the literal placeholder and threw.

variable:update is not affected — it unsets the environment field from its form.

Fix

After the selector resolves the selection, replace the default-environment placeholder (.) in the --environment option with the resolved environment ID, so the form validates a real ID. Guarded on the value being exactly the placeholder, so explicit environment names and the no--e case are untouched.

Added an integration test (TestVariableCreateDefaultEnvironment) that reproduces the crash and confirms the variable is created on the default environment.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Fixes a crash in variable:create when users select the default environment via -e . by normalizing the placeholder value (.) to the resolved environment ID before ConsoleForm option validation runs.

Changes:

• Normalize --environment from the default-environment placeholder (.) to the resolved environment ID after selection, preventing OptionsField validation from rejecting ..
• Add an integration regression test covering var:create -e . and verifying the variable is created on the default environment.

Reviewed changes

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

File	Description
legacy/src/Command/Variable/VariableCreateCommand.php	Rewrites --environment from . to the resolved environment ID after selector resolution so form validation uses a real environment ID.
integration-tests/variable_write_test.go	Adds a regression test ensuring var:create -e . does not fail validation and creates the variable on the default environment.

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