fix: align fail fast logic [CSENG-173]

Author: neema-beglou-snyk

src/lib/plugins/get-deps-from-plugin.ts

@@ -113,7 +113,7 @@ export async function getDepsFromPlugin(
   } catch (error) {
     if (options['print-effective-graph-with-errors']) {
       const errMessage =
-        error.message ?? 'Something went wrong getting dependencies';
+        error?.message ?? 'Something went wrong getting dependencies';
       debug(
         `Single plugin scan failed for ${options.file}, collecting as failed result: ${errMessage}`,
       );

src/lib/plugins/get-multi-plugin-result.ts

@@ -183,9 +183,9 @@ export async function getMultiPluginResult(
   }
 
   if (!allResults.length) {
-    // When allow-incomplete-sbom is active (effective-graph-with-errors + no fail-fast),
-    // return instead of throwing so the caller can print per-project JSONL error entries
-    if (options['print-effective-graph-with-errors'] && !options['fail-fast']) {
+    // When allow-incomplete-sbom is active, return instead of throwing
+    // so the caller can print per-project JSONL error entries
+    if (options['print-effective-graph-with-errors']) {
       return {
         plugin: {
           name: 'custom-auto-detect',