fix: make behaviour evaluation authoritative

Core fix: For cases with expectedBehaviours, reasoningQuality.status is now
set exclusively from behaviour evaluation results (required behaviour pass/fail).
Legacy concept checks remain visible as diagnostic-only metrics and do not
influence the authoritative result.

Key changes:
- Behaviour-based scoring determines reasoning status (passed/failed)
  instead of legacy concept literal matching
- Schema failure correctly forces not_evaluated (no vacuous truth)
- Saved live results re-evaluator preserves provenance metadata
- Classification tolerance map works bidirectionally for interchangeable types
- normalise() treats underscores as word characters, hyphens as spaces

Tests: 74 passing across both evaluator test suites
- tests/evaluator-behaviour-authoritative.test.mjs (47 tests, new)
- tests/evaluator-semantic.test.mjs (27 tests)

lib/reconstruction/prompt.js

@@ -45,7 +45,10 @@ Return ONLY the JSON object. No markdown, no explanation, no preamble.`;
 /** Load a versioned prompt from disk and substitute {{SCENARIO}} */
 async function buildV2Prompt(scenario) {
   try {
-    const content = await fs.readFile(join(PROMPTS_DIR, "reconstruct-v0.2.md"), "utf-8");
+    const content = await fs.readFile(
+      join(PROMPTS_DIR, "reconstruct-v0.2.md"),
+      "utf-8",
+    );
     return content.replace("{{SCENARIO}}", scenario);
   } catch {
     // Fall back to v0.1 prompt if v0.2 file is missing
@@ -69,6 +72,7 @@ export async function buildPrompt(scenario, version = "v0.2") {
       break;
   }
 
-  const strongJsonHint = "\n\nReturn ONLY a valid JSON object starting with { and ending with }. Do NOT include any text before the opening brace or after the closing brace. Do NOT wrap in markdown backticks.";
+  const strongJsonHint =
+    "\n\nReturn ONLY a valid JSON object starting with { and ending with }. Do NOT include any text before the opening brace or after the closing brace. Do NOT wrap in markdown backticks.";
   return { prompt: prompt + strongJsonHint, version };
 }