feat(brain): surface router-gate v4 signals into episode + factor axes

Co-Authored-By: Claude Opus 4.8 noreply@anthropic.com

tools/observer-transcript-parser.test.mjs

@@ -17,6 +17,21 @@ import {
   classifyFilePath,
 } from './observer-transcript-parser.mjs';
 
+describe('v4_signals + judge_spend_usd in episode', () => {
+  it('episode carries v4_signals block (default zero/null when no runtime files)', () => {
+    const ep = parseTranscript(JSON.stringify({
+      sessionId: 'no-runtime-sess',
+      message: { role: 'user', content: 'сделай фичу X' },
+      timestamp: '2026-05-31T10:00:00.000Z',
+    }), null, { routerStateBaseDir: tmpdir() });
+    expect(ep.v4_signals).toEqual({
+      rationalization_flag_count: 0, judge_verdict: null, safe_baseline_action: null, judge_calls: 0,
+    });
+    expect(typeof ep.task_cost.judge_spend_usd).toBe('number');
+    expect(ep.schema_minor).toBe(4);
+  });
+});
+
 // Build a JSONL transcript string from entry objects.
 function jsonl(entries) {
   return entries.map((e) => JSON.stringify(e)).join('\n');
@@ -236,7 +251,7 @@ describe('parseTranscript', () => {
     expect(ep.events).toEqual([]);
     expect(ep.outcome).toBe('unknown');
     expect(ep.schema_version).toBe(4);
-    expect(ep.schema_minor).toBe(3);
+    expect(ep.schema_minor).toBe(4);
   });
 
   it('produces a complete 7-field primary_rationale', () => {
@@ -469,7 +484,7 @@ describe('parseTranscript — v4 episode (Phase 2 Task 15 bump)', () => {
     ]);
     const ep = parseTranscript(t);
     expect(ep.schema_version).toBe(4);
-    expect(ep.schema_minor).toBe(3);
+    expect(ep.schema_minor).toBe(4);
     expect('classifier_output' in ep).toBe(true);
     expect('degraded_mode' in ep).toBe(true);
     expect('classifier_model' in ep.environment).toBe(true);
@@ -1047,6 +1062,7 @@ describe('parseTranscript — task_cost integration (Task 2)', () => {
       self_assessment_input_tokens: 0, self_assessment_output_tokens: 0,
       reviewer_input_tokens: 0, reviewer_output_tokens: 0,
       reviewer_subagent_usd: 0, reviewer_direct_fallback_usd: 0,
+      judge_spend_usd: 0,
     });
   });
 });
@@ -1657,7 +1673,7 @@ describe('parseTranscript v3 fields', () => {
   it('emits schema_version: 4', () => {
     const ep = parseTranscript(transcriptDirectFeature(), 'sess-1');
     expect(ep.schema_version).toBe(4);
-    expect(ep.schema_minor).toBe(3);
+    expect(ep.schema_minor).toBe(4);
   });
 
   it('recommended_node is null on direct episode without router-state (no classifier signal)', () => {
@@ -1772,9 +1788,9 @@ describe('parseTranscript — schema v4.3 write-block fields (phase 3 deferred #
     ].join('\n');
   }
 
-  it('emits schema_minor 3', () => {
+  it('emits schema_minor 4', () => {
     const ep = parseTranscript(simpleTranscript());
-    expect(ep.schema_minor).toBe(3);
+    expect(ep.schema_minor).toBe(4);
   });
 
   it('emits outcome_reviewed: null', () => {