docs(spec): add ARG-E + FRG-D per-language profile

[hyperpolymath]

Summary

Adds the per-language Adoption + Foundations Readiness Grade profiles for Ephapax, scored against the framework being introduced in hyperpolymath/standards#226 (ARG + FRG companion spec).

• spec/ARG-PROFILE.adoc — adoption readiness profile
• spec/FRG-PROFILE.adoc — foundations readiness profile

Grade:

• ARG-E: research artefact, narrow adopter base, working compiler
• FRG-D: active mechanised-proof line in formal/, multi-layer redesign (L1 regions / L2 modality / L3 echo / L4 dyadic), counterexample-verified preservation invariants

Cross-axis: this is the inverse of the AffineScript shape (research-strong / adoption-narrow vs. adoption-pragmatic / research-light), and is consistent with Ephapax's positioning as a foundational vehicle.

Test plan

• CI passes
• .adoc renders cleanly
• No SPDX-header lint complaints

🤖 Generated with Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 69 issues detected

Severity	Count
🔴 Critical	11
🟠 High	11
🟡 Medium	47

⚠️ Action Required: Critical security issues found!

View findings

[
  {
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  },
  {
    "reason": "Issue in boj-build.yml",
    "type": "unknown",
    "file": "boj-build.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in codeql.yml",
    "type": "unknown",
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    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
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  {
    "reason": "Issue in governance.yml",
    "type": "unknown",
    "file": "governance.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in hypatia-scan.yml",
    "type": "unknown",
    "file": "hypatia-scan.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in instant-sync.yml",
    "type": "unknown",
    "file": "instant-sync.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
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  {
    "reason": "Issue in mirror.yml",
    "type": "unknown",
    "file": "mirror.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in rust-ci.yml",
    "type": "unknown",
    "file": "rust-ci.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in rust-ci.yml",
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    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
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  {
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    "type": "unknown",
    "file": "scorecard-enforcer.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
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]

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