Enable indexing of config, infra, and style files by default

Uncomment and extend the DEFAULT_SUPPORTED_EXTENSIONS list to include
file types commonly found in real projects: YAML, JSON, SQL, CSS, HTML,
shell scripts, Prisma schemas, GraphQL, Protobuf, Terraform, and
Dockerfiles (by extension).

Without these, Kubernetes manifests, CI/CD workflows, database
migrations, and styling are invisible to semantic search.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: sw-agent-wario

packages/core/src/context.ts

@@ -29,8 +29,11 @@ const DEFAULT_SUPPORTED_EXTENSIONS = [
     '.cs', '.go', '.rs', '.php', '.rb', '.swift', '.kt', '.scala', '.m', '.mm',
     // Text and markup files
     '.md', '.markdown', '.ipynb',
-    // '.txt',  '.json', '.yaml', '.yml', '.xml', '.html', '.htm',
-    // '.css', '.scss', '.less', '.sql', '.sh', '.bash', '.env'
+    // Config, infrastructure, and supporting files
+    '.json', '.yaml', '.yml', '.xml', '.html', '.htm', '.toml',
+    '.css', '.scss', '.less', '.sql', '.sh', '.bash',
+    '.prisma', '.graphql', '.gql', '.proto',
+    '.dockerfile', '.tf', '.hcl',
 ];
 
 const DEFAULT_IGNORE_PATTERNS = [