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/competition_among_buyers.md

@@ -0,0 +1,63 @@
+---
+entity_slug: competition_among_buyers
+evaluator: null
+evaluated_at: '2026-02-23T05:01:19.546921'
+overall_score: 4.2
+scores:
+- name: definition_precision
+  value: 4.0
+  max_value: 5.0
+  rationale: The definition clearly identifies competition among buyers as a specific
+    market mechanism triggered when supply falls short of effectual demand, leading
+    to price increases. It's precise and non-circular, though it could be slightly
+    more detailed about the competitive dynamics involved.
+- name: source_grounding
+  value: 5.0
+  max_value: 5.0
+  rationale: This entity is directly grounded in Smith's text from Book I, Chapter
+    7, with the exact quote provided showing Smith's description of how buyer competition
+    emerges when quantity is insufficient. The concept is explicitly stated rather
+    than inferred.
+- name: domain_placement
+  value: 5.0
+  max_value: 5.0
+  rationale: The "Exchange" domain is perfectly appropriate since this describes a
+    fundamental mechanism of market exchange where buyers compete for scarce goods.
+    This is a core aspect of how markets function in the exchange process.
+- name: vsm_relevance
+  value: 3.0
+  max_value: 5.0
+  rationale: This entity has moderate VSM relevance, potentially mapping to S2 (coordination)
+    as it describes how markets self-regulate through competitive mechanisms, or S1
+    as an operational market process. However, it's primarily a market mechanism rather
+    than a clear organizational system component.
+- name: explanatory_value
+  value: 4.0
+  max_value: 5.0
+  rationale: This entity provides strong explanatory value by illuminating a specific
+    causal mechanism that drives price movements above natural levels. It explains
+    how market forces operate when demand exceeds supply, making it more than just
+    a surface phenomenon label.
+---
+
+# Evaluation: Competition Among Buyers
+
+## definition_precision — 4.0 / 5.0
+
+The definition clearly identifies competition among buyers as a specific market mechanism triggered when supply falls short of effectual demand, leading to price increases. It's precise and non-circular, though it could be slightly more detailed about the competitive dynamics involved.
+
+## source_grounding — 5.0 / 5.0
+
+This entity is directly grounded in Smith's text from Book I, Chapter 7, with the exact quote provided showing Smith's description of how buyer competition emerges when quantity is insufficient. The concept is explicitly stated rather than inferred.
+
+## domain_placement — 5.0 / 5.0
+
+The "Exchange" domain is perfectly appropriate since this describes a fundamental mechanism of market exchange where buyers compete for scarce goods. This is a core aspect of how markets function in the exchange process.
+
+## vsm_relevance — 3.0 / 5.0
+
+This entity has moderate VSM relevance, potentially mapping to S2 (coordination) as it describes how markets self-regulate through competitive mechanisms, or S1 as an operational market process. However, it's primarily a market mechanism rather than a clear organizational system component.
+
+## explanatory_value — 4.0 / 5.0
+
+This entity provides strong explanatory value by illuminating a specific causal mechanism that drives price movements above natural levels. It explains how market forces operate when demand exceeds supply, making it more than just a surface phenomenon label.