ci: enforce the python 3.10 floor with vermin and a 3.10 test-collection job

.github/workflows/test-python-floor.yml

@@ -0,0 +1,65 @@
+name: Python floor (3.10)
+
+#
+# This workflow enforces the requires-python floor declared in pyproject.toml.
+# Static analysis covers the production tree; test collection runs on a real 3.10.
+#
+
+on:
+  push:
+    branches: [ master, release/** ]
+  pull_request:
+
+jobs:
+  vermin:
+    name: Static Floor Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.12'
+      - name: Install Vermin
+        run: pip install vermin==1.8.0
+      - name: Check production tree against 3.10
+        run: |
+          vermin \
+            --target=3.10- \
+            --violations \
+            --backport typing_extensions \
+            --eval-annotations \
+            --exclude long \
+            --exclude string.rsplit \
+            --no-tips \
+            comfy/ \
+            comfy_extras/ \
+            comfy_api/ \
+            comfy_api_nodes/ \
+            comfy_execution/ \
+            comfy_config/ \
+            app/ \
+            api_server/ \
+            utils/ \
+            middleware/ \
+            *.py
+
+  test-collection:
+    name: Test Collection 3.10
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+      - name: Install requirements
+        run: |
+          python -m pip install --upgrade pip
+          pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu
+          pip install -r requirements.txt
+          pip install -r tests-unit/requirements.txt
+      - name: Collect unit tests
+        run: python -m pytest tests-unit --collect-only -q