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.gitea/workflows/signals-reachability.yml

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+name: Signals Reachability Scoring & Events
+
+on:
+  workflow_dispatch:
+    inputs:
+      allow_dev_key:
+        description: "Allow dev signing key fallback (1=yes, 0=no)"
+        required: false
+        default: "0"
+      evidence_out_dir:
+        description: "Evidence output dir for signing/upload"
+        required: false
+        default: "evidence-locker/signals/2025-12-05"
+  push:
+    branches: [ main ]
+    paths:
+      - 'src/Signals/**'
+      - 'scripts/signals/reachability-smoke.sh'
+      - '.gitea/workflows/signals-reachability.yml'
+      - 'tools/cosign/sign-signals.sh'
+
+jobs:
+  reachability-smoke:
+    runs-on: ubuntu-22.04
+    env:
+      DOTNET_NOLOGO: 1
+      DOTNET_CLI_TELEMETRY_OPTOUT: 1
+      DOTNET_SYSTEM_GLOBALIZATION_INVARIANT: 1
+      TZ: UTC
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Task Pack offline bundle fixtures
+        run: python3 scripts/packs/run-fixtures-check.sh
+
+      - name: Setup .NET 10 RC
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 10.0.100
+          include-prerelease: true
+
+      - name: Restore
+        run: dotnet restore src/Signals/StellaOps.Signals.sln --configfile nuget.config
+
+      - name: Build
+        run: dotnet build src/Signals/StellaOps.Signals.sln -c Release --no-restore
+
+      - name: Reachability scoring + cache/events smoke
+        run: |
+          chmod +x scripts/signals/reachability-smoke.sh
+          scripts/signals/reachability-smoke.sh
+
+  sign-and-upload:
+    runs-on: ubuntu-22.04
+    needs: reachability-smoke
+    env:
+      COSIGN_PRIVATE_KEY_B64: ${{ secrets.COSIGN_PRIVATE_KEY_B64 }}
+      COSIGN_PASSWORD: ${{ secrets.COSIGN_PASSWORD }}
+      COSIGN_ALLOW_DEV_KEY: ${{ github.event.inputs.allow_dev_key || '0' }}
+      OUT_DIR: ${{ github.event.inputs.evidence_out_dir || 'evidence-locker/signals/2025-12-05' }}
+      CI_EVIDENCE_LOCKER_TOKEN: ${{ secrets.CI_EVIDENCE_LOCKER_TOKEN || vars.CI_EVIDENCE_LOCKER_TOKEN }}
+      EVIDENCE_LOCKER_URL: ${{ secrets.EVIDENCE_LOCKER_URL || vars.EVIDENCE_LOCKER_URL }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Task Pack offline bundle fixtures
+        run: python3 scripts/packs/run-fixtures-check.sh
+
+      - name: Install cosign
+        uses: sigstore/cosign-installer@v3
+        with:
+          cosign-release: 'v2.2.4'
+
+      - name: Verify artifacts exist
+        run: |
+          cd docs/modules/signals
+          sha256sum -c SHA256SUMS
+
+      - name: Sign signals artifacts
+        run: |
+          chmod +x tools/cosign/sign-signals.sh
+          OUT_DIR="${OUT_DIR}" tools/cosign/sign-signals.sh
+
+      - name: Upload signed artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: signals-evidence-${{ github.run_number }}
+          path: |
+            ${{ env.OUT_DIR }}/*.sigstore.json
+            ${{ env.OUT_DIR }}/*.dsse
+            ${{ env.OUT_DIR }}/SHA256SUMS
+          if-no-files-found: error
+          retention-days: 30
+
+      - name: Push to Evidence Locker
+        if: ${{ env.CI_EVIDENCE_LOCKER_TOKEN != '' && env.EVIDENCE_LOCKER_URL != '' }}
+        env:
+          TOKEN: ${{ env.CI_EVIDENCE_LOCKER_TOKEN }}
+          URL: ${{ env.EVIDENCE_LOCKER_URL }}
+        run: |
+          tar -cf /tmp/signals-evidence.tar -C "$OUT_DIR" .
+          sha256sum /tmp/signals-evidence.tar
+          curl -f -X PUT "$URL/signals/$(date -u +%Y-%m-%d)/signals-evidence.tar" \
+            -H "Authorization: Bearer $TOKEN" \
+            --data-binary @/tmp/signals-evidence.tar
+          echo "Uploaded to Evidence Locker"
+
+      - name: Evidence Locker skip notice
+        if: ${{ env.CI_EVIDENCE_LOCKER_TOKEN == '' || env.EVIDENCE_LOCKER_URL == '' }}
+        run: |
+          echo "::notice::Evidence Locker upload skipped (CI_EVIDENCE_LOCKER_TOKEN or EVIDENCE_LOCKER_URL not set)"