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_evaluation.md

@@ -0,0 +1,30 @@
+---
+entity_slug: colony_economic_system_evaluation
+entity_type: Process
+vsm_system: S4
+type_rationale: Colony Economic System Evaluation is an assessment activity that involves
+  analyzing and judging colonial policies over time, making it a process rather than
+  a static entity or rule.
+vsm_rationale: This evaluation process involves scanning the environment to understand
+  how different colonial arrangements perform and adapt, which is the core intelligence
+  function of identifying what works and what doesn't in changing economic contexts.
+classified_at: '2026-02-23T10:53:39.571689'
+---
+
+# Classification: Colony Economic System Evaluation
+
+## Entity Type
+
+Process
+
+## VSM System
+
+S4
+
+## Type Rationale
+
+Colony Economic System Evaluation is an assessment activity that involves analyzing and judging colonial policies over time, making it a process rather than a static entity or rule.
+
+## VSM Rationale
+
+This evaluation process involves scanning the environment to understand how different colonial arrangements perform and adapt, which is the core intelligence function of identifying what works and what doesn't in changing economic contexts.