deps(actions): Bump actions/upload-artifact from 4 to 7

.github/workflows/ai-healthcheck-nightly.yml

@@ -44,7 +44,7 @@ jobs:
 
       - name: Upload AI healthcheck nightly summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: ai-healthcheck-nightly-summary
           path: ai-service/results/ai_healthcheck_nightly_summary.json

.github/workflows/ci.yml

@@ -370,7 +370,7 @@ jobs:
         run: npm run build
 
       - name: Archive production artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: dist
           path: dist/
@@ -407,7 +407,7 @@ jobs:
         run: npx @cyclonedx/cyclonedx-npm --output-format JSON --output-file sbom-node.json
 
       - name: Upload Node SBOM artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: sbom-node
           path: sbom-node.json
@@ -618,7 +618,7 @@ jobs:
 
       - name: Upload AI healthcheck summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: ai-healthcheck-summary
           path: ai-service/results/ai_healthcheck_summary.json
@@ -656,7 +656,7 @@ jobs:
 
       - name: Upload parity healthcheck summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: parity-healthcheck-summary
           path: ai-service/results/parity_healthcheck_summary.json
@@ -753,7 +753,7 @@ jobs:
 
       - name: Upload parity gate summaries
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: canonical-parity-gate-summaries
           path: |
@@ -802,7 +802,7 @@ jobs:
           python -m cyclonedx_py environment --output-format json --output-file sbom-python.json
 
       - name: Upload Python SBOM artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: sbom-python
           path: ai-service/sbom-python.json
@@ -845,7 +845,7 @@ jobs:
 
       - name: Upload AI evaluation summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: ai-eval-baseline-vs-random
           path: ai-service/results/ai_eval_baseline_vs_random.json
@@ -883,7 +883,7 @@ jobs:
 
       - name: Upload strength regression gate report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: ai-strength-regression-gate
           path: ai-service/results/ai_strength_regression_gate.json
@@ -969,15 +969,15 @@ jobs:
         run: npm run test:e2e:chromium
 
       - name: Upload Playwright report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: playwright-report
           path: playwright-report/
           retention-days: 7
 
       - name: Upload E2E test artifacts on failure
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: failure()
         with:
           name: e2e-test-results

.github/workflows/gpu-regression-nightly.yml

@@ -70,7 +70,7 @@ jobs:
 
       - name: Upload test results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: cpu-regression-results
           path: ai-service/results/*.xml
@@ -124,7 +124,7 @@ jobs:
 
       - name: Upload GPU test results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: gpu-regression-results
           path: ai-service/results/*.xml

.github/workflows/orchestrator-soak-nightly.yml

@@ -36,7 +36,7 @@ jobs:
 
       - name: Upload nightly soak summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: orchestrator_soak_nightly_summary
           path: results/orchestrator_soak_nightly.json

.github/workflows/parity-ci.yml

@@ -120,7 +120,7 @@ jobs:
       # Upload summary artifact for debugging failed builds
       - name: Upload parity check summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: parity-ci-summary
           path: ai-service/results/parity_ci_summary.json
@@ -188,7 +188,7 @@ jobs:
 
       - name: Upload parity check summary (3-player)
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: parity-ci-3p-summary
           path: ai-service/results/parity_ci_3p_summary.json
@@ -256,7 +256,7 @@ jobs:
 
       - name: Upload parity check summary (4-player)
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: parity-ci-4p-summary
           path: ai-service/results/parity_ci_4p_summary.json
@@ -311,7 +311,7 @@ jobs:
 
       - name: Upload extended parity summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: parity-extended-summary
           path: ai-service/results/parity_extended_summary.json

.github/workflows/parity-healthcheck-nightly.yml

@@ -38,7 +38,7 @@ jobs:
 
       - name: Upload nightly parity healthcheck summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: parity-healthcheck-nightly-summary
           path: ai-service/results/parity_healthcheck_nightly_summary.json

.github/workflows/slo-gate.yml

@@ -337,7 +337,7 @@ jobs:
       - name: Upload SLO report artifacts
         id: upload-report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: slo-gate-report-${{ github.run_id }}
           path: |