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/lane-queue.ts

@@ -83,7 +83,7 @@ export class LaneQueue {
    */
   cancel(laneId: string): void {
     const lane = this.lanes.get(laneId);
-    if (!lane) return;
+    if (!lane) {return;}
 
     const pending = lane.queue.splice(0);
     for (const entry of pending) {
@@ -102,7 +102,7 @@ export class LaneQueue {
    */
   private processNext(laneId: string): void {
     const lane = this.lanes.get(laneId);
-    if (!lane) return;
+    if (!lane) {return;}
 
     const entry = lane.queue.shift();
     if (!entry) {