ci(scorecard): add job-level permissions for reusable workflow

The `scorecard-reusable.yml` reusable requires the caller's `analysis` job to
declare `security-events: write` and `id-token: write` permissions —
called-workflow permissions are CAPPED by the caller's block (the reusable's
docstring states this explicitly).

Without this, every push silently fails with `startup_failure` because
ossf/scorecard-action cannot upload SARIF.

Same pattern as julia-professional-registry#19 (discovered 2026-05-27);
estate-wide sweep tracked separately.

Refs hyperpolymath/standards (estate scorecard convention)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.github/workflows/scorecard.yml

@@ -12,5 +12,8 @@ permissions: read-all
 
 jobs:
   analysis:
+    permissions:
+      security-events: write
+      id-token: write
     uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@e0caf11508a3989574713c78f5f444f2ce5e33ef
     secrets: inherit