perf: shared HTTP client and latency optimizations

.github/workflows/python-sdk-ci.yml

@@ -11,6 +11,9 @@ permissions:
 jobs:
   check:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
     strategy:
       matrix:
         python-version: ["3.11", "3.12", "3.13"]
@@ -25,4 +28,10 @@ jobs:
       - run: uv run ruff format --check .
       - run: uv run pyright
       - run: uv run pytest --cov=decibel --cov-report=xml --cov-report=term
+      - name: Coverage report on PR
+        if: matrix.python-version == '3.11' && github.event_name == 'pull_request'
+        uses: orgoro/coverage@v3.2
+        with:
+          coverageFile: coverage.xml
+          token: ${{ secrets.GITHUB_TOKEN }}
       - run: uv build

pyproject.toml

@@ -59,6 +59,9 @@ select = [
     "TC",   # flake8-type-checking
 ]
 
+[tool.ruff.lint.per-file-ignores]
+"tests/**" = ["SIM117"]  # Nested with statements are idiomatic in test mocking
+
 [tool.ruff.lint.flake8-bugbear]
 extend-immutable-calls = ["pydantic.Field"]