refactor(mcp): bind Electron provider failures at registration

src/server/registerElectronTools.ts

@@ -78,6 +78,7 @@ export const registerElectronTools = (
       runElectronTool(
         registration,
         listContract,
+        options.observationLoadFailure,
         { input, context },
         (parsed, { signal }) =>
           listElectronTargets(options.electron, parsed, {
@@ -92,6 +93,7 @@ export const registerElectronTools = (
       runElectronTool(
         registration,
         inspectContract,
+        options.observationLoadFailure,
         { input, context },
         (parsed, { signal, progress }) =>
           inspectElectronPage(options.electron, parsed, {
@@ -107,6 +109,7 @@ export const registerElectronTools = (
       runElectronTool(
         registration,
         analyzeContract,
+        undefined,
         { input, context },
         async ({ detail, ...request }, { signal, progress }) => {
           const analyzed = await analyzeJavaScriptApplicationValidated(
@@ -127,6 +130,7 @@ export const registerElectronTools = (
       runElectronTool(
         registration,
         reconcileContract,
+        undefined,
         { input, context },
         (parsed) =>
           Promise.resolve(reconcileJavaScriptRuntimeEvidenceValidated(parsed)),
@@ -139,6 +143,7 @@ export const registerElectronTools = (
       runElectronTool(
         registration,
         activeContract,
+        options.activeLoadFailure,
         { input, context },
         (parsed, { signal, progress }) =>
           captureElectronScenario(options.electronActive, parsed, {
@@ -174,6 +179,7 @@ const runElectronTool = async <Input>(
     readonly server: EvidenceMcpServer;
   },
   contract: ToolContract,
+  loadFailure: OptionalProviderLoadFailure | undefined,
   request: {
     readonly input: Input;
     readonly context: ServerContext;
@@ -184,16 +190,9 @@ const runElectronTool = async <Input>(
   ) => Promise<Result<Evidence, AnalysisError>>,
 ) => {
   const { input, context } = request;
-  const failure =
-    contract.name === "capture_electron_scenario"
-      ? options.activeLoadFailure
-      : contract.name === "list_electron_targets" ||
-          contract.name === "inspect_electron_page"
-        ? options.observationLoadFailure
-        : undefined;
-  if (failure !== undefined)
+  if (loadFailure !== undefined)
     return options.delivery.toCallToolResult(
-      err(optionalProviderUnavailable(failure, contract.name)),
+      err(optionalProviderUnavailable(loadFailure, contract.name)),
       contract,
     );
   return runAdmittedToolOperation(