infospace: process book-4-chapter-08

Extract entities, map to VSM, and synthesize analysis.

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

@@ -1054,3 +1054,44 @@
     finish_reason: stop
     duration_seconds: 71.5
     error: null
+- source_id: book-4-chapter-08
+  processed_at: '2026-02-19T21:25:52Z'
+  provider: openrouter
+  model: arcee-ai/trinity-large-preview:free
+  success: true
+  total_prompt_tokens: 61426
+  total_completion_tokens: 13927
+  total_cost: 0.0
+  total_duration_seconds: 684.3
+  total_retries: 0
+  stages:
+  - stage: extract-entities
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 18945
+    completion_tokens: 3409
+    cost: 0.0
+    finish_reason: stop
+    duration_seconds: 134.5
+    error: null
+  - stage: map-to-vsm
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 5536
+    completion_tokens: 10000
+    cost: 0.0
+    finish_reason: length
+    duration_seconds: 498.6
+    error: null
+  - stage: synthesize-analysis
+    retries: 0
+    provider: openrouter
+    model: arcee-ai/trinity-large-preview:free
+    prompt_tokens: 36945
+    completion_tokens: 518
+    cost: 0.0
+    finish_reason: unknown
+    duration_seconds: 51.2
+    error: null