refactor: reuse get_speckit_version() and assert -V in help test

Address Copilot review suggestions:
- Use get_speckit_version() instead of duplicating importlib.metadata
  logic, which provides a better fallback via pyproject.toml for
  source-based runs
- Assert both --version and -V appear in help output

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: fsilvaortiz

src/specify_cli/__init__.py

@@ -490,12 +490,7 @@ def show_banner():
 def _version_callback(value: bool):
     """Print CLI version and exit."""
     if value:
-        import importlib.metadata
-
-        try:
-            ver = importlib.metadata.version("specify-cli")
-        except Exception:
-            ver = "unknown"
+        ver = get_speckit_version()
         print(f"specify {ver}")
         raise typer.Exit()
 

tests/test_ai_skills.py

@@ -664,14 +664,15 @@ def test_short_version_flag(self):
         assert result.output.strip().startswith("specify ")
 
     def test_version_flag_appears_in_help(self):
-        """--version should appear in the help output."""
+        """--version and -V should appear in the help output."""
         from typer.testing import CliRunner
 
         runner = CliRunner()
         result = runner.invoke(app, ["--help"])
 
         plain = re.sub(r'\x1b\[[0-9;]*m', '', result.output)
         assert "--version" in plain
+        assert "-V" in plain
 
 
 class TestParameterOrderingIssue: