feat: config manager modal

stores/config.ts

@@ -1,5 +1,34 @@
-export interface Config {
-  ai: {
-    provider: 'openai-compatible'
-  }
+import {} from '@pinia/nuxt'
+
+export type ConfigAiProvider = 'openai-compatible'
+export interface ConfigAi {
+  provider: ConfigAiProvider
+  apiKey?: string
+  apiBase?: string
+  model: string
+  contextSize?: number
 }
+export interface ConfigWebSearch {
+  provider: 'tavily'
+  apiKey?: string
+}
+
+export interface Config {
+  ai: ConfigAi
+  webSearch: ConfigWebSearch
+}
+
+export const useConfigStore = defineStore('config', () => {
+  const config = useLocalStorage<Config>('deep-research-config', {
+    ai: {
+      provider: 'openai-compatible',
+      model: '',
+      contextSize: 128_000,
+    },
+    webSearch: {
+      provider: 'tavily',
+    },
+  })
+
+  return { config }
+})