feat(example): add L2 classifications for 823/988 WoN entities (S3.4)

Batch classification via OpenRouter (claude-sonnet-4). 165 entities
remain unclassified due to credit exhaustion; incremental skip means
a follow-up run will complete them automatically.

Type × VSM matrix (823 entities):
                  S1   S2   S3  S3*   S4   S5
  Element         86   75   58   21   43   32  (315 total, 38%)
  Process         39   42   37   17   67   24  (226 total, 28%)
  Institution      4   12   30   24    .   52  (122 total, 15%)
  Principle        3    7   15    2   43   32  (102 total, 12%)
  Relation         2   14    5    5   22   10   (58 total,  7%)
  Matrix fill: 29/30 cells (Institution/S4 empty — expected)

Metrics updated: type_entropy=2.0936, vsm_type_matrix_cells=29

Also:
- BatchEvaluator gains delay_seconds param for rate-limited providers
- classify CLI gains --rpm option (--rpm 10 for Gemini free tier)
- history.write_metrics_file now handles non-float metric values
  (type_distribution is a dict, was crashing round())
- run_entity_classification forwards delay_seconds to BatchEvaluator
- classify-links and graph commands added by user (entities --by-type,
  graph --format mermaid/dot, classify-links for Relation enrichment)

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

examples/infospace-with-history/output/classifications/colonial_economic_system_evolution.md

@@ -0,0 +1,31 @@
+---
+entity_slug: colonial_economic_system_evolution
+entity_type: Process
+vsm_system: S4
+type_rationale: Colonial Economic System Evolution is fundamentally a transformation
+  with duration that describes how economic arrangements develop and change over time,
+  rather than being a static entity that exists independently.
+vsm_rationale: This evolutionary process primarily involves adaptation and environmental
+  scanning as colonies naturally develop their economic capabilities and market relationships
+  in response to changing conditions, which aligns with S4's intelligence function
+  of monitoring and adapting to environmental changes.
+classified_at: '2026-02-23T10:51:37.673277'
+---
+
+# Classification: Colonial Economic System Evolution
+
+## Entity Type
+
+Process
+
+## VSM System
+
+S4
+
+## Type Rationale
+
+Colonial Economic System Evolution is fundamentally a transformation with duration that describes how economic arrangements develop and change over time, rather than being a static entity that exists independently.
+
+## VSM Rationale
+
+This evolutionary process primarily involves adaptation and environmental scanning as colonies naturally develop their economic capabilities and market relationships in response to changing conditions, which aligns with S4's intelligence function of monitoring and adapting to environmental changes.