chore: Item 10 — migrate STATE.scm → STATE.a2ml v2 thin journal

[hyperpolymath]

Estate Tech-Debt — Item 10 (.scm → .a2ml v2 migration)

Migrates .machine_readable/STATE.scm (v1 s-expr machine state) to the
canonical v2 thin session journal a2ml format.

Spec

standards/a2ml-templates/STATE.a2ml.v2.spec.adoc — v2 stores only
phase, next_action, last_action, updated, and @blockers.
Everything derivable (session history, milestones, %s, file lists) is
intentionally discarded per the spec ("v2 discards everything derivable").

Mapping applied

• phase ← (current-position (phase …))
• next_action ← first critical-next-actions item
• last_action ← last session-history accomplishment
• blockers ← blockers-and-issues (critical/high/medium/low)
• updated ← (metadata (updated …))

Scope / safety

• Source STATE.scm removed (v2 is a clean break per spec — "a repo is
  either v1 or v2; no forward-compat shim").
• No build/CI/Justfile recipe references STATE.scm in this repo (verified).
• Residual .claude/CLAUDE.md mention is non-executing boilerplate → follow-up.

Converted by state_scm_to_v2.py; output verified against the v2 spec grammar.

🤖 Generated with Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 17 issues detected

Severity	Count
🔴 Critical	6
🟠 High	1
🟡 Medium	10

⚠️ 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": "Nominal-only SAST in modshells: codeql.yml language matrix contains no language present in the repo and lacks `actions`, so CodeQL records zero results on every commit. Remediation: set the CodeQL matrix to `language: actions`.",
    "type": "StaticAnalysis",
    "file": "/home/runner/work/modshells/modshells",
    "action": "auto_fix",
    "rule_module": "scorecard",
    "severity": "medium",
    "remediation": "Add CodeQL or equivalent SAST workflow.",
    "scorecard_check": "SAST"
  },
  {
    "reason": "Repository has 3 non-main remote branch(es). Policy: single main branch only.",
    "type": "GS007",
    "file": ".",
    "action": "delete_remote_branches",
    "rule_module": "git_state",
    "severity": "medium"
  },
  {
    "reason": "Legacy .scm state file -- must be .a2ml in .machine_readable/6a2/",
    "type": "SD001",
    "file": ".machine_readable/META.scm",
    "action": "convert_and_move",
    "rule_module": "structural_drift",
    "severity": "critical"
  },
  {
    "reason": "Legacy .scm state file -- must be .a2ml in .machine_readable/6a2/",
    "type": "SD001",
    "file": ".machine_readable/ECOSYSTEM.scm",
    "action": "convert_and_move",
    "rule_module": "structural_drift",
    "severity": "critical"
  },
  {
    "reason": "Legacy .scm state file -- must be .a2ml in .machine_readable/6a2/",
    "type": "SD001",
    "file": ".machine_readable/AGENTIC.scm",
    "action": "convert_and_move",
    "rule_module": "structural_drift",
    "severity": "critical"
  },
  {
    "reason": "Legacy .scm state file -- must be .a2ml in .machine_readable/6a2/",
    "type": "SD001",
    "file": ".machine_readable/NEUROSYM.scm",
    "action": "convert_and_move",
    "rule_module": "structural_drift",
    "severity": "critical"
  },
  {
    "reason": "Legacy .scm state file -- must be .a2ml in .machine_readable/6a2/",
    "type": "SD001",
    "file": ".machine_readable/PLAYBOOK.scm",
    "action": "convert_and_move",
    "rule_module": "structural_drift",
    "severity": "critical"
  },
  {
    "reason": "6a2ml file outside canonical location -- must be in .machine_readable/6a2/",
    "type": "SD004",
    "file": ".machine_readable/STATE.a2ml",
    "action": "move",
    "rule_module": "structural_drift",
    "severity": "critical"
  },
  {
    "reason": "References STATE.scm -- should be .machine_readable/6a2/STATE.a2ml",
    "type": "SD007",
    "file": ".claude/CLAUDE.md",
    "action": "update_reference",
    "rule_module": "structural_drift",
    "severity": "medium"
  }
]

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