refactor: optimize CI workflow with path filters and dependency installation

- Added path filters to only trigger tests when Python source or workflow files change
- Split dependency installation into sync and dev install steps for better clarity
- Fixed YAML indentation for improved readability

Author: msanatan

.github/workflows/python-tests.yml

@@ -1,42 +1,49 @@
 name: Python Tests
 
 on:
-    push:
-        branches: ["**"]
-    pull_request:
-    workflow_dispatch: {}
+  push:
+    branches: ["**"]
+    paths:
+      - MCPForUnity/UnityMcpServer~/src/**
+      - .github/workflows/python-tests.yml
+  pull_request:
+    paths:
+      - MCPForUnity/UnityMcpServer~/src/**
+      - .github/workflows/python-tests.yml
+  workflow_dispatch: {}
 
 jobs:
-    test:
-        name: Run Python Tests
-        runs-on: ubuntu-latest
-        steps:
-            - name: Checkout repository
-              uses: actions/checkout@v4
+  test:
+    name: Run Python Tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
 
-            - name: Install uv
-              uses: astral-sh/setup-uv@v4
-              with:
-                  version: "latest"
+      - name: Install uv
+        uses: astral-sh/setup-uv@v4
+        with:
+          version: "latest"
 
-            - name: Set up Python
-              run: uv python install 3.10
+      - name: Set up Python
+        run: uv python install 3.10
 
-            - name: Install dependencies
-              run: |
-                  cd MCPForUnity/UnityMcpServer~/src
-                  uv sync --dev
+      - name: Install dependencies
+        run: |
+          cd MCPForUnity/UnityMcpServer~/src
+          uv sync
+          uv pip install -e ".[dev]"
 
-            - name: Run tests
-              run: |
-                  cd MCPForUnity/UnityMcpServer~/src
-                  uv run pytest tests/ -v --tb=short
+      - name: Run tests
+        run: |
+          cd MCPForUnity/UnityMcpServer~/src
+          uv run pytest tests/ -v --tb=short
 
-            - name: Upload test results
-              uses: actions/upload-artifact@v4
-              if: always()
-              with:
-                  name: pytest-results
-                  path: |
-                      MCPForUnity/UnityMcpServer~/src/.pytest_cache/
-                      tests/
+      - name: Upload test results
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: pytest-results
+          path: |
+            MCPForUnity/UnityMcpServer~/src/.pytest_cache/
+            tests/