fix: add tool repository credentials to uv build in tool publish

When running 'uv build' during tool publish, the build process now has access
to tool repository credentials. This mirrors the pattern used in run_crew.py,
ensuring private package indexes are properly authenticated during the build.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/crewai/src/crewai/cli/tools/main.py

@@ -21,6 +21,7 @@ from crewai.cli.utils import (
     get_project_description,
     get_project_name,
     get_project_version,
+    read_toml,
     tree_copy,
     tree_find_and_replace,
 )
@@ -116,11 +117,26 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
         self._print_tools_preview(tools_metadata)
         self._print_current_organization()
 
+        build_env = os.environ.copy()
+        try:
+            pyproject_data = read_toml()
+            sources = pyproject_data.get("tool", {}).get("uv", {}).get("sources", {})
+
+            for source_config in sources.values():
+                if isinstance(source_config, dict):
+                    index = source_config.get("index")
+                    if index:
+                        index_env = build_env_with_tool_repository_credentials(index)
+                        build_env.update(index_env)
+        except Exception:  # noqa: S110
+            pass
+
         with tempfile.TemporaryDirectory() as temp_build_dir:
             subprocess.run(  # noqa: S603
                 ["uv", "build", "--sdist", "--out-dir", temp_build_dir],  # noqa: S607
                 check=True,
                 capture_output=False,
+                env=build_env,
             )
 
             tarball_filename = next(