Implemented Investigation Strategy

tests/fixtures/question-priority-generalisation.js

@@ -67,7 +67,11 @@ export const questionPriorityGeneralisationFixtures = [
       "hire-bottleneck",
     ],
     prohibitedFirstTopics: ["salary", "job advert", "programming language"],
-    acceptableQuestionStrategies: ["decision criterion", "constraint"],
+    acceptableQuestionStrategies: [
+      "decision_threshold",
+      "evidence_gathering",
+      "definition",
+    ],
     notes:
       "The first question should establish whether more engineering capacity is justified before compensation or implementation details.",
     graph: makeScenarioGraph({
@@ -143,7 +147,11 @@ export const questionPriorityGeneralisationFixtures = [
       "paint colour",
       "finance provider",
     ],
-    acceptableQuestionStrategies: ["decision criterion", "constraint"],
+    acceptableQuestionStrategies: [
+      "decision_threshold",
+      "evidence_gathering",
+      "definition",
+    ],
     notes:
       "The first question should establish whether the fleet is failing a threshold that justifies replacement.",
     graph: makeScenarioGraph({
@@ -219,7 +227,7 @@ export const questionPriorityGeneralisationFixtures = [
       "office location",
       "advertising channel",
     ],
-    acceptableQuestionStrategies: ["actor/customer", "decision criterion"],
+    acceptableQuestionStrategies: ["definition", "decision_threshold"],
     notes:
       "The first question should clarify the customer or value case for expansion before rollout logistics.",
     graph: makeScenarioGraph({
@@ -291,7 +299,7 @@ export const questionPriorityGeneralisationFixtures = [
       "project-remaining-benefit",
     ],
     prohibitedFirstTopics: ["sunk cost", "project logo", "final launch date"],
-    acceptableQuestionStrategies: ["decision criterion", "objective"],
+    acceptableQuestionStrategies: ["decision_threshold", "definition"],
     notes:
       "The first question should establish remaining value or success threshold before sunk-cost framing or launch timing.",
     graph: makeScenarioGraph({
@@ -367,7 +375,11 @@ export const questionPriorityGeneralisationFixtures = [
       "payment provider",
       "tier name",
     ],
-    acceptableQuestionStrategies: ["actor/customer", "decision criterion"],
+    acceptableQuestionStrategies: [
+      "definition",
+      "decision_threshold",
+      "baseline_reconstruction",
+    ],
     notes:
       "The first question should establish who values paid support or what outcome would justify offering it before pricing details.",
     graph: makeScenarioGraph({