feat(observer): parser write-block v4.3 — embedding + reviewed + cost ext (phase 3 deferred #2)

tools/observer-transcript-parser.mjs

@@ -430,6 +430,16 @@ export function extractTokenUsage(turn) {
     web_search_requests: web_search,
     web_fetch_requests: web_fetch,
     iterations,
+    // v4.3 LLM-agent cost fields — always zero at parse time;
+    // populated retroactively by controller scripts / reviewer response.
+    classifier_input_tokens: 0,
+    classifier_output_tokens: 0,
+    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,
   };
 }
 
@@ -814,12 +824,18 @@ export function parseTranscript(transcriptText, fallbackSessionId = null, option
 
   return {
     schema_version: 4,
-    schema_minor: 0,
+    schema_minor: 3,
     task_id: sessionId,
     task_ref: sessionId,
     timestamps: { started_at, ended_at },
     path_type: usedSuperpowers ? 'regulated' : 'improvised',
     outcome: 'unknown',
+    // v4.3: reviewed outcome — always null at write time, filled by /brain-retro reviewer.
+    outcome_reviewed: null,
+    outcome_reviewed_source: null,
+    // v4.3: embedding of first user prompt — null at parse time (sync parser cannot
+    // await model load); populated asynchronously by the Stop-hook after parseTranscript.
+    prompt_embedding_base64: null,
     prompt_signal: classifyPromptSignal(prompt),
     decision_provenance,
     environment: { ..._envBase, classifier_model: _classifierModel },