docs: add docs user interface with docusarus react

Author: cyber-hari

README.md

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+# Dependencies
+/node_modules
+
+# Production
+/build
+
+# Generated files
+.docusaurus
+.cache-loader
+
+# Misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

docs/.gitignore

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+# Config
+
+Global configuration management for logging, cache, and runtime settings. Provides type-safe access and mutation of config values, with sensible defaults and environment variable support.
+
+## API Summary
+
+- [**`setConfig(value: Partial<Config>): void`**](#setconfig) – update configuration at runtime.
+- [**`getConfig(): Config`**](#getconfig) – get the current configuration object.
+
+---
+
+## Function Documentation & Usage Examples
+
+### `setConfig()`
+Updates configuration settings at runtime. Only provided keys are merged; others remain unchanged.
+
+**Method Signature:**
+```ts
+function setConfig(value: Partial<Config>): void
+```
+
+**Parameters:**
+- `value`: Partial configuration object to merge.
+
+**Examples:**
+```ts
+import { setConfig, getConfig } from '@catbee/utils';
+
+setConfig({
+  logger: { level: "debug", name: "custom-logger", pretty: true }
+});
+```
+
+---
+
+### `getConfig()`
+Returns the current configuration object.
+
+**Method Signature:**
+```ts
+function getConfig(): Config
+```
+
+**Returns:**
+- The current configuration object.
+
+**Examples:**
+```ts
+import { getConfig } from '@catbee/utils';
+
+const currentConfig = getConfig();
+console.log(currentConfig.logger.level); // "info"
+console.log(currentConfig.cache.defaultTtl); // 3600000
+```
+
+---
+
+## Default Values
+
+All configuration options have sensible defaults:
+
+```ts
+const config = {
+  logger: {
+    level: "info",         // Logging level
+    name: "@catbee/utils", // Logger name
+    pretty: true,          // Pretty print logs (dev only)
+    singleLine: false      // Single line pretty print
+  },
+  cache: {
+    defaultTtl: 3600000    // Default cache TTL (1 hour, in ms)
+  }
+};
+```
+
+---
+
+## Types
+
+### Logger Configuration
+
+```ts
+interface LoggerConfig {
+  level: "trace" | "debug" | "info" | "warn" | "error";
+  name: string;
+  pretty: boolean;
+  singleLine: boolean;
+}
+```
+
+### Cache Configuration
+
+```ts
+interface CacheConfig {
+  defaultTtl: number; // milliseconds
+}
+```
+
+### Config Object
+
+```ts
+interface Config {
+  logger: LoggerConfig;
+  cache: CacheConfig;
+}
+```