docs: add CONTEXT_ANCHOR as authoritative project state snapshot

Author: Dee66

docs/CONTEXT_ANCHOR.md

@@ -0,0 +1,36 @@
+# ShieldCraft Engine — Context Anchor
+
+## What This Project Is
+
+- ShieldCraft Engine is a deterministic software manufacturing engine that validates canonical product specifications and produces auditable, reproducible build artifacts for review and CI.
+
+## What Is Complete
+
+- Canonical DSL and schema: `spec/se_dsl_v1.spec.json` and `spec/schemas/se_dsl_v1.schema.json`.
+- Determinism tooling and checks: `scripts/canonical_full_run.py`, `scripts/canonicalize_spec.py`, and related tests (e.g., `tests/ci/test_canonical_full_run_regression.py`, `tests/spec/test_canonical_json.py`).
+- Self-host dry-run and artifact emission tooling, including deterministic preview and manifest emission (see `src/shieldcraft/engine.py` and self-host scripts).
+- Governance artifacts and audits: governance docs and audit script (`docs/governance/*`, `scripts/audit_docs.py`, `artifacts/governance/doc_classification_report.json`).
+- Persona subsystem (opt-in) with non-interference rules and tests (`docs/persona/*`, persona code under `src/shieldcraft/persona`, and persona tests under `tests/persona/`).
+- Test Attachment Contract (TAC) implemented as an opt-in enforcement (environment flag `SHIELDCRAFT_ENFORCE_TEST_ATTACHMENT`) and related validators/tests present.
+- Generated verification tests exist under `tests/generated/verification_spine/` and test-generation scripts under `scripts/`.
+
+## What Is In Progress
+
+- Phase 14 remediation: self-hosting validation failures are triaged and remediation work is started (`docs/governance/progress.md` shows `self-hosting-remediation: STARTED`).
+- Consolidation of verification and governance documentation (e.g., `docs/governance/VERIFICATION_SPINE.md` added/expanded).
+- Integrating determinism regression checks into CI (regression test added at `tests/ci/test_canonical_full_run_regression.py`).
+- Implementation PRs for approved RFCs are being prepared (spec changes are approved; implementation work is tracked in `docs/governance/progress.md`).
+
+## What Is Explicitly Not Done
+
+- A formal progress/state file schema is not defined (`docs/governance/progress.md` lists this as an open gap).
+- Remaining implementation of approved RFCs is pending review and PRs (the spec-level RFCs are approved; code/tests implementing them remain gated to PRs).
+- Phase 14 self-hosting validation is not completed; failures remain and remediation is ongoing.
+
+## Current Focus
+
+- Current active phase: Verification / Testing Spine. This phase exists to ensure engine outputs meet structural, semantic, and determinism guarantees by running deterministic previews, emitting canonical digests, and producing audit-ready artifacts for CI and external validation (see `docs/governance/VERIFICATION_SPINE.md` and `docs/governance/progress.md`).
+
+## How This File Is Used
+
+- This file is an authoritative, short snapshot of repository state for use in conversation resets and onboarding. Update it only when factual repository state changes and record changes in `docs/governance/decision_log.md` and via `scripts/audit_docs.py`.