fix(config): use 'obsidian-rag' not '.obsidian-rag' for dev config path

src/utils/config.ts

@@ -88,7 +88,7 @@ function defaults(): ObsidianRagConfig {
 }
 
 export function loadConfig(configPath?: string): ObsidianRagConfig {
-  const defaultPath = resolve(process.cwd(), ".obsidian-rag", "config.json");
+  const defaultPath = resolve(process.cwd(), "obsidian-rag", "config.json");
   const path = configPath ?? defaultPath;
   try {
     const raw = JSON.parse(readFileSync(path, "utf-8"));