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/colony_economic_system_learning.md

@@ -0,0 +1,31 @@
+---
+entity_slug: colony_economic_system_learning
+entity_type: Process
+vsm_system: S4
+type_rationale: Colony Economic System Learning is fundamentally an activity of acquiring
+  knowledge and adapting practices over time through trial and error and observation,
+  making it a process rather than a static entity.
+vsm_rationale: This learning process involves scanning the environment, gathering
+  intelligence about effective practices from other colonies, and adapting to local
+  conditions, which are core functions of the intelligence system that enables organizational
+  adaptation.
+classified_at: '2026-02-23T10:53:59.212354'
+---
+
+# Classification: Colony Economic System Learning
+
+## Entity Type
+
+Process
+
+## VSM System
+
+S4
+
+## Type Rationale
+
+Colony Economic System Learning is fundamentally an activity of acquiring knowledge and adapting practices over time through trial and error and observation, making it a process rather than a static entity.
+
+## VSM Rationale
+
+This learning process involves scanning the environment, gathering intelligence about effective practices from other colonies, and adapting to local conditions, which are core functions of the intelligence system that enables organizational adaptation.