style(pipelines): apply ruff --fix to src/pipelines (#26)

* ci: add reproducible test runner, fix requirements pins, use venv in workflow

* chore(ci): add Makefile, README test docs, run ruff in CI; remove .venv_ci

* docs: fix README markdown warnings; ci: add codecov token and pip cache for provider jobs

* ci: exclude duplicate router from mypy checks (known conflict)

* chore: remove duplicate src/llm/router.py to avoid mypy duplicate-module

* chore: move test_results into test/ directory

* style(pipelines): apply ruff --fix to src/pipelines

* Potential fix for code scanning alert no. 725: Workflow does not contain permissions

fixed previously

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

* Potential fix for code scanning alert no. 732: Workflow does not contain permissions

fixed previous

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

---------

Co-authored-by: SDLC Bot <devnull@example.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: 3 people

.github/workflows/python-test.yml

@@ -3,6 +3,7 @@ name: Python Tests (consolidated)
 permissions:
   contents: read
 
+
 on:
   push:
     branches: [ main ]

.github/workflows/python-tests.yml

@@ -1,3 +1,7 @@
+
+permissions:
+  contents: read
+
 name: Python Tests
 
 on: