style: auto-fix ESLint issues (curly braces and formatting)

- Add curly braces to all if/else/for/while statements
- Fix indentation and trailing spaces
- Auto-fixed 372 linting errors using eslint --fix
- Remaining issues are warnings only (non-null assertions, explicit any types)

src/cli/send.ts

@@ -38,7 +38,7 @@ function loadSystemPrompt(): string {
     resolve(import.meta.dirname, '../../SOUL.md'),
   ];
   for (const p of paths) {
-    if (existsSync(p)) return readFileSync(p, 'utf-8');
+    if (existsSync(p)) {return readFileSync(p, 'utf-8');}
   }
   return 'You are Flynn, a helpful personal AI assistant.';
 }