fix CI workflow: add missing deps and pyproject.toml config

Install anthropic and mcp in CI so pyright/pytest can resolve all
imports. Add pyproject.toml with ruff target-version and pyright
pythonVersion set to py311. Run pull_request on all branches.

Author: shafty023

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.13"
-      - run: pip install pyright pyyaml
+      - run: pip install pyright pyyaml anthropic mcp
       - run: pyright
 
   test:
@@ -36,5 +36,5 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.13"
-      - run: pip install pytest pyyaml
+      - run: pip install pytest pyyaml anthropic
       - run: pytest plugins/

pyproject.toml

@@ -0,0 +1,5 @@
+[tool.ruff]
+target-version = "py311"
+
+[tool.pyright]
+pythonVersion = "3.11"