fix(ci): clear OSSF Scorecard startup_failure (#44)

Fixes the OSSF Scorecard workflow, which failed at startup on every run.

**Cause:** reusable-workflow caller missing `security-events:
write`+`id-token: write` (reusable perms are capped by the caller),
and/or an illegal `timeout-minutes` key on a `uses:` job.

**Fix:** inject caller permissions and/or drop `timeout-minutes`. Pin
preserved. Verified with actionlint. Part of an estate-wide Scorecard
remediation.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Author: hyperpolymath

.github/workflows/scorecard.yml

@@ -13,4 +13,8 @@ permissions:
 
 jobs:
   scorecard:
-    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@d7c22711e830e1f383846472f6e9b99debdb201e
+    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@d7c22711e830e1f383846472f6e9b99debdb201e
+    permissions:
+      contents: read
+      security-events: write
+      id-token: write