infospace: process book-4-chapter-03

Extract entities, map to VSM, and synthesize analysis.

examples/infospace-with-history/output/processing-log.yaml

@@ -849,3 +849,44 @@
     finish_reason: unknown
     duration_seconds: 90.0
     error: null
+- source_id: book-4-chapter-03
+  processed_at: '2026-02-19T20:31:40Z'
+  provider: openrouter
+  model: arcee-ai/trinity-large-preview:free
+  success: true
+  total_prompt_tokens: 59460
+  total_completion_tokens: 17078
+  total_cost: 0.0
+  total_duration_seconds: 713.6
+  total_retries: 0
+  stages:
+  - stage: extract-entities
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 21223
+    completion_tokens: 4869
+    cost: 0.0
+    finish_reason: stop
+    duration_seconds: 183.1
+    error: null
+  - stage: map-to-vsm
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 6996
+    completion_tokens: 10000
+    cost: 0.0
+    finish_reason: length
+    duration_seconds: 427.6
+    error: null
+  - stage: synthesize-analysis
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 31241
+    completion_tokens: 2209
+    cost: 0.0
+    finish_reason: stop
+    duration_seconds: 102.9
+    error: null