VoxCaster: every on-demand Darktide voice line on the com wheel or a keybind

- 98 commands across com wheel, item, enemy, ability and blitz groups
- shared command table drives wheel dropdowns, keybinds and localization
- tools/check_upstream.py validates triggers against the game source dump
- weekly GitHub Action opens an issue when triggers change upstream

.github/workflows/check-upstream.yml

@@ -0,0 +1,42 @@
+name: Check Darktide source for VO changes
+
+on:
+  schedule:
+    - cron: "0 9 * * 1"   # every Monday 09:00 UTC
+  workflow_dispatch:       # "Run workflow" button in the Actions tab
+
+permissions:
+  contents: read
+  issues: write
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.x"
+
+      - name: Compare mod commands against game source
+        id: check
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set +e
+          python3 tools/check_upstream.py --json report.json | tee report.txt
+          echo "changed=$?" >> "$GITHUB_OUTPUT"
+
+      - name: Open / update issue if something changed
+        if: steps.check.outputs.changed == '1'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          TITLE="VO triggers changed in Darktide source"
+          BODY="$(printf '%s\n\n```\n%s\n```\n\nRun `python3 tools/check_upstream.py` locally, add the new triggers to `VoxCaster_commands.lua` + `_localization.lua`, and re-run until it says *Up to date*.' "Automated check on $(date -u +%F)." "$(cat report.txt)")"
+          EXISTING=$(gh issue list --state open --search "$TITLE in:title" --json number --jq '.[0].number')
+          if [ -n "$EXISTING" ]; then
+            gh issue comment "$EXISTING" --body "$BODY"
+          else
+            gh issue create --title "$TITLE" --body "$BODY" --label "upstream"
+          fi