Enhances code extraction and project indexing

Adds support for Dart and Liquid languages with tree-sitter parsing.
Improves accuracy of code symbol extraction for existing languages.
Indexes project files to enhance code navigation features.
Migrates build system to facilitate code contributions.
Removes git hook functionality.
Integrates Sentry for error tracking and reporting.
Enhances project initialization and configuration loading.

src/extraction/index.ts

@@ -18,6 +18,7 @@ import { QueryBuilder } from '../db/queries';
 import { extractFromSource } from './tree-sitter';
 import { detectLanguage, isLanguageSupported } from './grammars';
 import { logDebug } from '../errors';
+import { captureException } from '../sentry';
 
 /**
  * Progress callback for indexing operations
@@ -111,6 +112,11 @@ export function shouldIncludeFile(
   return false;
 }
 
+/**
+ * Marker file name that indicates a directory (and all children) should be skipped
+ */
+const CODEGRAPH_IGNORE_MARKER = '.codegraphignore';
+
 /**
  * Recursively scan directory for source files
  */
@@ -123,10 +129,18 @@ export function scanDirectory(
   let count = 0;
 
   function walk(dir: string): void {
+    // Check for .codegraphignore marker file - skip entire directory tree if present
+    const ignoreMarker = path.join(dir, CODEGRAPH_IGNORE_MARKER);
+    if (fs.existsSync(ignoreMarker)) {
+      logDebug('Skipping directory due to .codegraphignore marker', { dir });
+      return;
+    }
+
     let entries: fs.Dirent[];
     try {
       entries = fs.readdirSync(dir, { withFileTypes: true });
     } catch (error) {
+      captureException(error, { operation: 'walk-directory', dir });
       logDebug('Skipping unreadable directory', { dir, error: String(error) });
       return;
     }
@@ -330,6 +344,7 @@ export class ExtractionOrchestrator {
       stats = fs.statSync(fullPath);
       content = fs.readFileSync(fullPath, 'utf-8');
     } catch (error) {
+      captureException(error, { operation: 'extract-file', filePath: fullPath });
       return {
         nodes: [],
         edges: [],
@@ -476,6 +491,7 @@ export class ExtractionOrchestrator {
       try {
         content = fs.readFileSync(fullPath, 'utf-8');
       } catch (error) {
+        captureException(error, { operation: 'sync-read-file', filePath });
         logDebug('Skipping unreadable file during sync', { filePath, error: String(error) });
         continue;
       }
@@ -544,6 +560,7 @@ export class ExtractionOrchestrator {
       try {
         content = fs.readFileSync(fullPath, 'utf-8');
       } catch (error) {
+        captureException(error, { operation: 'detect-changes-read-file', filePath });
         logDebug('Skipping unreadable file while detecting changes', { filePath, error: String(error) });
         continue;
       }