fix(workflows): load custom steps before add

[ton-katsu]

Assisted-by: GitHub Copilot (model: unknown, supervised)

Description

Fix the workflow add command so it loads custom workflow steps before
validating a workflow.

Previously, workflow add did not call load_custom_steps(project_root).
As a result, workflows containing custom steps such as feedback could not be
validated and added successfully.

A regression test was added to verify that the project root is resolved before
custom steps are loaded.

Testing

• Tested locally with uv run specify --help
• Ran focused tests with .venv/bin/python -m pytest tests/test_workflows.py -q
• Ran the full test suite with uv sync && uv run pytest
• Tested with a sample project

Focused test result:

970 passed, 1 skipped

The sample project test verified that:

• The feedback step was installed from a step catalog.
• A workflow containing the feedback step was added successfully with
  specify workflow add --dev.

The full test suite was not marked as passing because running uv sync && uv run pytest without the test extra removed the test dependencies and resulted
in collection errors. The focused workflow test suite passed successfully.

AI Disclosure

• I did not use AI assistance for this contribution
• I did use AI assistance

The code changes and regression tests were created with GitHub Copilot. The
changes were reviewed and tested by the contributor.

[Copilot]

🟢 Approval recommended

The targeted fix is correct, consistent with existing workflow commands, and covered by a regression test.

Pull request overview

Loads project-installed workflow steps before validating newly added workflows.

Changes:

• Loads custom steps after resolving the project root.
• Adds a regression test for the loading order and root argument.

File summaries

File	Description
src/specify_cli/workflows/_commands.py	Loads custom steps before workflow validation.
tests/test_workflows.py	Verifies custom-step loading uses the resolved project root.

Review details

• Files reviewed: 2/2 changed files
• Comments generated: 0
• Review effort level: Balanced

---

💡 Configure MCP servers for context-aware, tailored reviews. Learn more in the docs.