chore(ci): replace scorecard.yml with reusable wrapper

[hyperpolymath]

Pins to hyperpolymath/standards#205 merge SHA e0caf11508a3989574713c78f5f444f2ce5e33ef. Replaces the canonical scorecard.yml with a thin wrapper. Closes the 5-candidate convergence set.

Estate audit: 258 deploys / 18% drift / 39% top-SHA share.

Part of estate-wide convergence campaign 2026-05-26 (standards#199 / #205).

[github-actions]

🔍 Hypatia Security Scan

Findings: 43 issues detected

Severity	Count
🔴 Critical	3
🟠 High	10
🟡 Medium	30

⚠️ Action Required: Critical security issues found!

View findings

[
  {
    "reason": "Required file missing",
    "type": "missing",
    "file": "0-AI-MANIFEST.a2ml",
    "action": "create",
    "rule_module": "root_hygiene",
    "severity": "high"
  },
  {
    "reason": "Action erlef/setup-beam@v1 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action erlef/setup-beam@v1 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action actions/download-artifact@v8 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action erlef/setup-beam@v1 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action actions/download-artifact@v8 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action codecov/codecov-action@v6 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action erlef/setup-beam@v1 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action actions/download-artifact@v8 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action erlef/setup-beam@v1 needs attention",
    "type": "unpinned_action",
    "file": "ci.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  }
]

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