feat(openontology): implement OpenOntology Phase 0 + local engine and CLI (#99)

Implements OpenPRD 0001 through Phase 0 (specification, schemas, example,
docs surface) and Phase 1 (local engine, CLI, conformance tests).

Schemas (17 contracts, JSON Schema Draft 2020-12, additionalProperties:false)
  manifest, namespace, entity-type, property, relationship-type, constraint,
  query, action, entity, claim, source, evidence, changeset, review, approval,
  event, package — registered in @logicsrc/validators and exported from
  @logicsrc/schemas under https://logicsrc.com/schemas/openontology/.

@logicsrc/openontology
  - canonical JSON + sha256 package digests; YAML, JSON, NDJSON, and inline
    authoring all compile to the same bytes, so digests are authoring-agnostic
  - id profile: compact / IRI / urn with one canonicalization rule, prefix
    bound by a Namespace object so IRIs reverse unambiguously
  - validation: schema, graph (domain/range, datatypes, dangling refs),
    provenance (source-or-firstParty, agent runId, derivation inputs), policy
    (excerpt limits, licensing, visibility, staleness) and declared
    constraints; four severities, stable codes, text/json/yaml/markdown
  - portable triple-pattern query AST: multi-hop, 14 operators, asOf and
    recordedAsOf, per-status filtering, distinct/order/limit, explanation
    mode, and enforced depth/binding/row limits
  - append-only store: claims are immutable; dispute/retract/supersede append
    status transitions and the effective status is the latest one
  - change sets: 9 operations, atomic pre-flight, conflict detection on stale
    base revisions, semantic diff with duplicate-identity warnings and
    affected-query deltas, per-operation reviewer decisions
  - policy: agents propose but can never apply — the denial keys on actor
    type, so every scope plus high confidence plus --yolo still cannot apply;
    merges need approval, bulk retractions need two, undeclared action side
    effects are denied
  - JSON-LD 1.1 export/import with PROV-O aliases and lossy-field reporting
  - pluggable signature envelope with a jws-ed25519 reference profile and a
    fail-closed trust policy

CLI: logicsrc ontology init|validate|lint|build|inspect, entity, claim, query,
changeset, import, export, audit. Reads take --format, writes default to a
proposal, exit codes are stable for CI.

Example: examples/openontology/ethereum-ecosystem — 12 entity types, 17
relationship types, 63 entities, 169 claims, 25 sources, 31 evidence records,
5 saved queries, every claim lifecycle state, and a pending merge proposal.
All data is fictional; the directory is removable without affecting any core
test.

Docs: docs/openontology{,-governance,-interoperability}.md, a real
/openontology route, homepage + nav + sitemap entries, and a root README
section.

Verification: 112 new tests; full monorepo build and every workspace test
pass; conformance bundle (18 valid + 13 invalid fixtures) runs against the
published schemas alone; Node.js 25 and Bun 1.3 produce byte-identical
digests, revisions, event trails, and query results.

Not included (later PRD phases): MCP resources, REST/SSE, Turso adapter, TUI
and PWA surfaces, RDF/SHACL mappings, source adapters, governed actions.

Refs: prd/0001-add-logicsrc-openontology-spec.md

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

packages/schemas/schemas/logicsrc-openontology-entity.schema.json

@@ -0,0 +1,59 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://logicsrc.com/schemas/openontology/entity.schema.json",
+  "title": "LogicSRC OpenOntology Entity",
+  "description": "A specific thing with a stable identity. Entity ids never change when display names or aliases change; deletion is expressed as tombstone/archived/superseded state, never erasure.",
+  "type": "object",
+  "required": ["openontology", "kind", "id", "type", "canonicalName", "createdAt", "createdBy"],
+  "additionalProperties": false,
+  "properties": {
+    "openontology": { "type": "string", "pattern": "^\\d+\\.\\d+(\\.\\d+)?$" },
+    "kind": { "const": "Entity" },
+    "id": {
+      "type": "string",
+      "minLength": 1,
+      "description": "Stable id. Package-qualified compact form (prefix:type:slug), an http(s) IRI, or a urn:logicsrc: identifier."
+    },
+    "type": { "type": "string", "minLength": 1, "description": "Entity type id." },
+    "canonicalName": { "type": "string", "minLength": 1 },
+    "labels": { "$ref": "#/$defs/languageMap" },
+    "aliases": {
+      "type": "array",
+      "items": { "type": "string", "minLength": 1 },
+      "uniqueItems": true
+    },
+    "externalIds": {
+      "type": "object",
+      "description": "Namespaced external identifiers (github, wikidata, orcid, did, ...). External services are never treated as canonical identity authorities.",
+      "additionalProperties": { "type": "string" }
+    },
+    "status": {
+      "type": "string",
+      "enum": ["active", "archived", "tombstone", "superseded", "merged"],
+      "default": "active"
+    },
+    "supersededBy": {
+      "type": "string",
+      "description": "Entity id that replaced this one after a merge. Old ids remain resolvable as redirects."
+    },
+    "createdAt": { "type": "string", "format": "date-time" },
+    "createdBy": { "type": "string", "minLength": 1 },
+    "updatedAt": { "type": "string", "format": "date-time" },
+    "visibility": {
+      "type": "string",
+      "enum": ["public", "internal", "private"],
+      "default": "public"
+    },
+    "tags": { "type": "array", "items": { "type": "string" }, "uniqueItems": true },
+    "extensions": { "type": "object" }
+  },
+  "$defs": {
+    "languageMap": {
+      "type": "object",
+      "patternProperties": {
+        "^[A-Za-z]{2,3}(-[A-Za-z0-9]{2,8})*$": { "type": "string" }
+      },
+      "additionalProperties": false
+    }
+  }
+}