fix(ingestion): increase bufferSize from 256KB to 2MB for large files

gitnexus/src/core/ingestion/call-processor.ts

@@ -174,7 +174,7 @@ export const processCalls = async (
       // Cache Miss: Re-parse
       // Use larger bufferSize for files > 32KB
       try {
-        tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 256 });
+        tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 1024 * 2 });
       } catch (parseError) {
         // Skip files that can't be parsed
         continue;

gitnexus/src/core/ingestion/heritage-processor.ts

@@ -47,7 +47,7 @@ export const processHeritage = async (
     if (!tree) {
       // Use larger bufferSize for files > 32KB
       try {
-        tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 256 });
+        tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 1024 * 2 });
       } catch (parseError) {
         // Skip files that can't be parsed
         continue;

gitnexus/src/core/ingestion/import-processor.ts

@@ -794,7 +794,7 @@ export const processImports = async (
 
     if (!tree) {
       try {
-        tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 256 });
+        tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 1024 * 2 });
       } catch (parseError) {
         continue;
       }

gitnexus/src/core/ingestion/parsing-processor.ts

@@ -297,7 +297,7 @@ const processParsingSequential = async (
 
     let tree;
     try {
-      tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 256 });
+      tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 1024 * 2 });
     } catch (parseError) {
       console.warn(`Skipping unparseable file: ${file.path}`);
       continue;

gitnexus/src/core/ingestion/workers/parse-worker.ts

@@ -1109,7 +1109,7 @@ const processFileGroup = (
 
     let tree;
     try {
-      tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 256 });
+      tree = parser.parse(file.content, undefined, { bufferSize: 1024 * 1024 * 2 });
     } catch {
       continue;
     }