infospace: process book-4-chapter-06

Extract entities, map to VSM, and synthesize analysis.

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

@@ -972,3 +972,44 @@
     finish_reason: stop
     duration_seconds: 194.7
     error: null
+- source_id: book-4-chapter-06
+  processed_at: '2026-02-19T21:01:44Z'
+  provider: openrouter
+  model: arcee-ai/trinity-large-preview:free
+  success: true
+  total_prompt_tokens: 49874
+  total_completion_tokens: 22000
+  total_cost: 0.0
+  total_duration_seconds: 825.6
+  total_retries: 0
+  stages:
+  - stage: extract-entities
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 13587
+    completion_tokens: 8000
+    cost: 0.0
+    finish_reason: length
+    duration_seconds: 282.7
+    error: null
+  - stage: map-to-vsm
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 10128
+    completion_tokens: 10000
+    cost: 0.0
+    finish_reason: length
+    duration_seconds: 401.2
+    error: null
+  - stage: synthesize-analysis
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 26159
+    completion_tokens: 4000
+    cost: 0.0
+    finish_reason: length
+    duration_seconds: 141.7
+    error: null