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_objectives.md

@@ -0,0 +1,30 @@
+---
+entity_slug: colony_economic_system_objectives
+entity_type: Element
+vsm_system: S5
+type_rationale: Colony Economic System Objectives are the goals and purposes that
+  exist as persistent guiding frameworks for colonial economic policy, making them
+  a stock of institutional aims rather than processes or relations.
+vsm_rationale: These objectives operate at the highest level of policy formation,
+  defining the fundamental identity and purpose of colonial economic systems, which
+  is the core function of S5 as the ultimate authority that determines systemic purpose.
+classified_at: '2026-02-23T10:54:02.859959'
+---
+
+# Classification: Colony Economic System Objectives
+
+## Entity Type
+
+Element
+
+## VSM System
+
+S5
+
+## Type Rationale
+
+Colony Economic System Objectives are the goals and purposes that exist as persistent guiding frameworks for colonial economic policy, making them a stock of institutional aims rather than processes or relations.
+
+## VSM Rationale
+
+These objectives operate at the highest level of policy formation, defining the fundamental identity and purpose of colonial economic systems, which is the core function of S5 as the ultimate authority that determines systemic purpose.