feat(example): add per-entity LLM evaluations for 985 WoN entities (S3.3)

Batch evaluation of all 988 entities via OpenRouter. 984 succeeded on
first pass; 3 failed (network errors). eval-summary --update-metrics
written with per_entity_mean=3.9556.

Viability dashboard: 6/6 PASS
  redundancy_ratio   0.0061  (max 0.10)
  coverage_ratio     0.6190  (min 0.40)
  coherence_comps    0.0000  (max 3)
  consistency_cycles 0.0000  (max 0)
  granularity_entropy 2.6748 (min 1.0)
  per_entity_mean    3.9556  (min 3.5)

Dimension breakdown (mean across 985 entities):
  definition_precision  3.62
  source_grounding      4.36
  domain_placement      4.56
  vsm_relevance         3.31
  explanatory_value     3.94

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

examples/infospace-with-history/output/evaluations/agricultural_price_ceilings.md

@@ -0,0 +1,63 @@
+---
+entity_slug: agricultural_price_ceilings
+evaluator: null
+evaluated_at: '2026-02-23T00:29:07.800923'
+overall_score: 4.0
+scores:
+- name: definition_precision
+  value: 4.0
+  max_value: 5.0
+  rationale: The definition clearly specifies maximum prices set below market equilibrium
+    for agricultural products, with clear intended purpose and predictable effects.
+    It avoids circularity and captures a distinct regulatory mechanism rather than
+    a vague concept.
+- name: source_grounding
+  value: 4.0
+  max_value: 5.0
+  rationale: Smith does examine price controls and references historical examples
+    like the Statute of Labourers in Book I, Chapter 11, discussing how such interventions
+    distort markets. The entity accurately reflects Smith's analysis of government
+    price interventions in agricultural markets.
+- name: domain_placement
+  value: 5.0
+  max_value: 5.0
+  rationale: '"Regulation" is the correct domain placement as this represents a specific
+    form of government market intervention. The entity clearly belongs in the regulatory
+    category rather than production, exchange, or other economic domains.'
+- name: vsm_relevance
+  value: 3.0
+  max_value: 5.0
+  rationale: This maps primarily to S3 (internal regulation) as a control mechanism,
+    but the regulatory nature makes it somewhat external to the productive system's
+    internal operations. It has moderate VSM relevance but isn't as naturally integrated
+    as core operational elements.
+- name: explanatory_value
+  value: 4.0
+  max_value: 5.0
+  rationale: The entity illuminates an important market mechanism showing how price
+    controls create shortages and quality reduction, demonstrating Smith's broader
+    principles about market interference. It provides genuine insight into regulatory
+    effects rather than merely labeling a phenomenon.
+---
+
+# Evaluation: Agricultural Price Ceilings
+
+## definition_precision — 4.0 / 5.0
+
+The definition clearly specifies maximum prices set below market equilibrium for agricultural products, with clear intended purpose and predictable effects. It avoids circularity and captures a distinct regulatory mechanism rather than a vague concept.
+
+## source_grounding — 4.0 / 5.0
+
+Smith does examine price controls and references historical examples like the Statute of Labourers in Book I, Chapter 11, discussing how such interventions distort markets. The entity accurately reflects Smith's analysis of government price interventions in agricultural markets.
+
+## domain_placement — 5.0 / 5.0
+
+"Regulation" is the correct domain placement as this represents a specific form of government market intervention. The entity clearly belongs in the regulatory category rather than production, exchange, or other economic domains.
+
+## vsm_relevance — 3.0 / 5.0
+
+This maps primarily to S3 (internal regulation) as a control mechanism, but the regulatory nature makes it somewhat external to the productive system's internal operations. It has moderate VSM relevance but isn't as naturally integrated as core operational elements.
+
+## explanatory_value — 4.0 / 5.0
+
+The entity illuminates an important market mechanism showing how price controls create shortages and quality reduction, demonstrating Smith's broader principles about market interference. It provides genuine insight into regulatory effects rather than merely labeling a phenomenon.