experiment(confidence-engine): expose reconstruction provider seam

scripts/start-case-experiment-helper.cjs

@@ -53,7 +53,7 @@ function readScenarioInput(argv) {
   return { scenario: argv.slice(startIdx).join(" ") };
 }
 
-async function runStartCaseExperiment(scenarioInput, experimentInstruction) {
+async function runStartCaseExperiment(scenarioInput, experimentInstruction, options = {}) {
   // ── Experiment seam bridge: supply instruction to production path ──
   const hadEnvVar = process.env.RECONSTRUCTION_EXPERIMENT_INSTRUCTION != null;
   const previousEnvValue = process.env.RECONSTRUCTION_EXPERIMENT_INSTRUCTION;
@@ -61,10 +61,10 @@ async function runStartCaseExperiment(scenarioInput, experimentInstruction) {
     process.env.RECONSTRUCTION_EXPERIMENT_INSTRUCTION = experimentInstruction;
   }
 
-  let startCase;
+  let startCase = options.startCase;
   const isMock = process.env.START_CASE_EXPERIMENT_HELPER_MOCK === "1";
 
-  if (isMock) {
+  if (!startCase && isMock) {
     // Deterministic mode: skip environment checks and use inline test double.
     startCase = async (body) => {
       // Deterministic inline test double — no live model calls.
@@ -81,7 +81,7 @@ async function runStartCaseExperiment(scenarioInput, experimentInstruction) {
         diagnostics: { validationStatus: "mock", modelName: "inline-test-double", graphReferenceValidation: { valid: true, errors: [] } },
       };
     };
-  } else {
+  } else if (!startCase) {
     const baseUrl = assertRequiredEnv("OLLAMA_BASE_URL");
     const model = assertRequiredEnv("OLLAMA_MODEL");
 
@@ -99,7 +99,10 @@ async function runStartCaseExperiment(scenarioInput, experimentInstruction) {
   let result;
   const endToEndStartedAt = Date.now();
   try {
-    result = await startCase(scenarioInput);
+    result = await startCase(scenarioInput, {
+      reconstructionProvider: options.reconstructionProvider,
+      reconstructionModelName: options.reconstructionModelName,
+    });
   } finally {
     // Clean up experiment env var after execution regardless of outcome
     if (experimentInstruction && !hadEnvVar) {
@@ -132,7 +135,8 @@ async function runStartCaseExperiment(scenarioInput, experimentInstruction) {
   };
 }
 
-(async () => {
+if (require.main === module) {
+  (async () => {
   // Import-only mode: prove real production seam without invoking startCase.
   // Used only for deterministic apparatus verification of the import path.
   if (process.env.START_CASE_EXPERIMENT_HELPER_IMPORT_ONLY === "1") {
@@ -183,4 +187,9 @@ async function runStartCaseExperiment(scenarioInput, experimentInstruction) {
     console.log(JSON.stringify(failure));
     process.exit(1);
   }
-})();
+  })();
+}
+
+module.exports = { runStartCaseExperiment };
+
+module.exports = { runStartCaseExperiment };