ci: run PR126 ec511f5 evidence promotion

Author: TheHiddenObserver

.github/workflows/pr126-promote-ec511f53-evidence.yml

@@ -1 +1,71 @@
-PLACEHOLDER
+name: PR126 promote ec511f53 Stage C evidence
+
+on:
+  push:
+    branches:
+      - agent/panel-p1-stage-c-covariance
+    paths:
+      - '.github/workflows/pr126-promote-ec511f53-evidence.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  promote:
+    runs-on: ubuntu-latest
+    timeout-minutes: 25
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: agent/panel-p1-stage-c-covariance
+          fetch-depth: 0
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - name: Install validation dependencies
+        run: python -m pip install pytest 'jsonschema[format]'
+      - name: Audit and promote physical evidence
+        run: |
+          python -m py_compile .github/scripts/pr126_promote_ec511.py
+          python .github/scripts/pr126_promote_ec511.py
+          git diff --check
+      - name: Regenerate deterministic benchmark assets
+        run: |
+          python dev/benchmarks/generate_benchmark_data.py \
+            --out frontend/public/data/benchmark_data.json \
+            --report frontend/public/data/parse_report.json \
+            --inventory-out frontend/public/data/source_inventory.json \
+            --deterministic --strict-sources
+          cd frontend
+          npm ci
+          npm run build
+      - name: Validate promoted contracts
+        run: |
+          python -m pytest \
+            dev/tests/test_panel_stage_c_frontend_source.py \
+            dev/tests/test_benchmark_catalog.py \
+            dev/tests/test_benchmark_inventory_v2.py \
+            dev/tests/test_frontend_domain_coverage.py \
+            dev/tests/test_benchmark_frontend_data.py \
+            dev/tests/test_panel_stage_c_physical_runner_contract.py \
+            dev/tests/test_panel_stage_c_performance_runner_contract.py \
+            -q --tb=short
+          python dev/benchmarks/generate_benchmark_data.py --check --strict-sources
+          git diff --check
+      - name: Commit promotion and self-delete helpers
+        shell: bash
+        run: |
+          git rm .github/workflows/pr126-promote-ec511f53-evidence.yml
+          git rm .github/scripts/pr126_promote_ec511.py
+          git config user.name 'github-actions[bot]'
+          git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
+          git add -A
+          echo 'Promotion diff:'
+          git status --short
+          git diff --cached --check
+          git commit -m 'chore: promote PR126 final ec511f53 physical evidence'
+          git push origin HEAD:agent/panel-p1-stage-c-covariance