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/gateway/handlers/config.ts

@@ -18,9 +18,9 @@ export function redactConfig(config: Config): Record<string, unknown> {
 
   // Helper: redact specified keys on an object if they exist and are non-nullish
   const redact = (obj: Record<string, unknown> | undefined, ...keys: string[]) => {
-    if (!obj) return;
+    if (!obj) {return;}
     for (const key of keys) {
-      if (obj[key] !== undefined && obj[key] !== null) obj[key] = '***';
+      if (obj[key] !== undefined && obj[key] !== null) {obj[key] = '***';}
     }
   };
 
@@ -102,22 +102,22 @@ export function redactConfig(config: Config): Record<string, unknown> {
 /** Keys that are safe to update at runtime via config.patch. */
 const PATCHABLE_KEYS: Record<string, (config: Config, value: unknown) => boolean> = {
   'hooks.confirm': (config, value) => {
-    if (!Array.isArray(value) || !value.every((v) => typeof v === 'string')) return false;
+    if (!Array.isArray(value) || !value.every((v) => typeof v === 'string')) {return false;}
     config.hooks.confirm = value as string[];
     return true;
   },
   'hooks.log': (config, value) => {
-    if (!Array.isArray(value) || !value.every((v) => typeof v === 'string')) return false;
+    if (!Array.isArray(value) || !value.every((v) => typeof v === 'string')) {return false;}
     config.hooks.log = value as string[];
     return true;
   },
   'hooks.silent': (config, value) => {
-    if (!Array.isArray(value) || !value.every((v) => typeof v === 'string')) return false;
+    if (!Array.isArray(value) || !value.every((v) => typeof v === 'string')) {return false;}
     config.hooks.silent = value as string[];
     return true;
   },
   'server.localhost': (config, value) => {
-    if (typeof value !== 'boolean') return false;
+    if (typeof value !== 'boolean') {return false;}
     config.server.localhost = value;
     return true;
   },

src/gateway/handlers/sessions.ts

@@ -16,7 +16,7 @@ export function createSessionHandlers(deps: SessionHandlerDeps) {
         id,
         messageCount: deps.sessionManager.getSession(
           id.split(':')[0],
-          id.split(':').slice(1).join(':')
+          id.split(':').slice(1).join(':'),
         ).getHistory().length,
       }));
       return makeResponse(request.id, { sessions });