feat(core): add ActionGateDebtContextProvider and cryptographic IDELedger

[AAH20]

Summary

Adds the native ActionGateDebtContextProvider and cryptographic ActionGateIDELedger under core/context/providers/ActionGateDebtProvider.ts.

Problem Solved

As developers and Forward Deployed AI Engineers prompt Continue in VS Code and JetBrains to refactor code, generate microservices, and edit files, engineering teams require in-IDE controls to:

1. Prevent In-IDE Technical Debt Spikes: Real-time scoring of code diffs against unbounded reasoning loops, unhandled exception paths, and bloated context overhead.
2. Zero-Trust Refactoring Boundaries: Enforcing never_equate_intent_to_approval across state-mutating file edits and terminal commands.
3. Emergency In-IDE Kill Switch: Immediate cessation of automated refactorings on AAG_KILL_SWITCH environment variables.
4. Cryptographic In-IDE Action Ledger: Emitting immutable, SHA-256 hash-chained JSONL receipts providing audit-ready evidence for VC/PE Technical Due Diligence and enterprise production readiness reviews.

Features Added

• ActionGateDebtContextProvider:
  • evaluateRefactor(): Evaluates diffs and outputs a normalized Production Readiness Score (0–100) with critical smell warnings.
• ActionGateIDELedger:
  • recordRefactor(): Cryptographically links each in-IDE refactoring event into an immutable SHA-256 chain.
  • verifyIntegrity(): Validates hash-chain continuity.

Testing & Validation

• Added core/context/providers/ActionGateDebtProvider.test.ts with unit tests validating clean refactor passes, dirty refactor debt rejections, and cryptographic ledger integrity.

Upstream & Commercial Context

Maintained by A2Z SOC for AI Forward Deployed Engineering, In-IDE Refactoring Governance, and Technical Due Diligence.

For engineering organizations and investors requiring codebase due diligence or production debt triage:

• Instant Audit ($499): https://a2zsoc.com/productized-services#instant-audit-tripwire
• Technical Due Diligence ($25K–$50K) & Production Debt Remediation Sprints ($50K–$100K): https://a2zsoc.com/consultation

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