fix: rename root package to beanflows-pipeline to avoid workspace conflict

The web package is already named 'beanflows'. Renaming the root CLI/infra
package to 'beanflows-pipeline' (src/beanflows_pipeline/) resolves the
uv workspace name conflict and Python namespace collision.

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

pyproject.toml

@@ -1,5 +1,5 @@
 [project]
-name = "beanflows"
+name = "beanflows-pipeline"
 version = "0.1.0"
 description = "Add your description here"
 readme = "readme.md"
@@ -20,7 +20,7 @@ dependencies = [
 ]
 
 [project.scripts]
-beanflows = "beanflows.cli:app"
+beanflows = "beanflows_pipeline.cli:app"
 
 
 [dependency-groups]