chore: use more conventional XDG_CONFIG_HOME for config

src/config/types.ts

@@ -41,7 +41,7 @@ export type ChannelsConfig = z.infer<typeof ChannelsConfigSchema>;
 
 export const AgentConfigSchema = z.object({
   model: z.string().default('anthropic/claude-sonnet-4-5'),
-  workspacePath: z.string().default('~/.nanobot'),
+  workspacePath: z.string().default('~/.config/nanobot'),
   maxTokens: z.number().int().default(4096),
   contextWindowTokens: z.number().int().default(65536),
   temperature: z.number().default(0.7),
@@ -114,7 +114,7 @@ export type HeartbeatConfig = z.infer<typeof HeartbeatConfigSchema>;
 export const ConfigSchema = z.object({
   agent: AgentConfigSchema.default(() => ({
     model: 'anthropic/claude-sonnet-4-5',
-    workspacePath: '~/.nanobot',
+    workspacePath: '~/.config/nanobot',
     maxTokens: 4096,
     contextWindowTokens: 65536,
     temperature: 0.7,