feat(tests): add E2E tests with pytfm framework

- Add pytfm workspace dependency to tests and types groups

- Create E2E test example using pytfm API and page objects

- Add BlogHomePage and BlogAPI test classes

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

pyproject.toml

@@ -38,6 +38,7 @@ tests = [
     "pytest>=9.0.3",
     "pytest-asyncio>=1.3.0",
     "pytest-cov>=7.1.0",
+    "pytfm",
 ]
 lints = [
     "black>=23.7.0",
@@ -47,11 +48,15 @@ lints = [
 types = [
     "mimesis>=19.1.0",
     "mypy>=1.20.1",
+    "pytfm",
 ]
 
 [project.scripts]
 blog = "app.main:main"
 
+[tool.uv.sources]
+pytfm = { workspace = true }
+
 [tool.pytest.ini_options]
 asyncio_mode = "auto"
 asyncio_default_fixture_loop_scope = "function"