Set PYTHONPATH=src so coverage tracks src/ not site-packages after wheel install

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

Author: Abel Milash

.azdo/ci-pr.yaml

@@ -66,7 +66,7 @@ extends:
           displayName: 'Install wheel'
 
         - script: |
-            pytest --junitxml=test-results.xml --cov=src/PowerPlatform --cov-report=xml --cov-report=term-missing --cov-fail-under=90
+            PYTHONPATH=src pytest --junitxml=test-results.xml --cov=src/PowerPlatform --cov-report=xml --cov-report=term-missing --cov-fail-under=90
           displayName: 'Test with pytest'
 
         - script: |

.github/workflows/python-package.yml

@@ -51,7 +51,7 @@ jobs:
 
     - name: Test with pytest
       run: |
-        pytest --junitxml=test-results.xml --cov=src/PowerPlatform --cov-report=xml --cov-report=term-missing --cov-fail-under=90
+        PYTHONPATH=src pytest --junitxml=test-results.xml --cov=src/PowerPlatform --cov-report=xml --cov-report=term-missing --cov-fail-under=90
 
     - name: Diff coverage (90% for new changes)
       run: |