docs: standardize contact/attribution email to j.d.a.jewell@open.ac.uk

[hyperpolymath]

Standardizes all contact + attribution email references to the canonical j.d.a.jewell@open.ac.uk (root + subprojects), replacing the GitHub noreply and the jonathan.jewell@open.ac.uk variant. VeriSimDB octad data records (.verisimdb/octads/*.json) and .mailmap are excluded — those keep their real historical values.

https://claude.ai/code/session_017TXizM5c1Yd9HWf7Y15YH2

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Generated by Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 262 issues detected

Severity	Count
🔴 Critical	40
🟠 High	121
🟡 Medium	101

⚠️ Action Required: Critical security issues found!

View findings

[
  {
    "reason": "Issue in boj-build.yml",
    "type": "missing_timeout_minutes",
    "file": "boj-build.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in casket-pages.yml",
    "type": "missing_timeout_minutes",
    "file": "casket-pages.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in casket-pages.yml",
    "type": "missing_timeout_minutes",
    "file": "casket-pages.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in codeql.yml",
    "type": "missing_timeout_minutes",
    "file": "codeql.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in dogfood-gate.yml",
    "type": "missing_timeout_minutes",
    "file": "dogfood-gate.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in dogfood-gate.yml",
    "type": "missing_timeout_minutes",
    "file": "dogfood-gate.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in dogfood-gate.yml",
    "type": "missing_timeout_minutes",
    "file": "dogfood-gate.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in dogfood-gate.yml",
    "type": "missing_timeout_minutes",
    "file": "dogfood-gate.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in dogfood-gate.yml",
    "type": "missing_timeout_minutes",
    "file": "dogfood-gate.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in instant-sync.yml",
    "type": "missing_timeout_minutes",
    "file": "instant-sync.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  }
]

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