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/backends/native/orchestrator.ts

@@ -364,10 +364,10 @@ export class AgentOrchestrator {
    * Called before each `process()` call when compaction is configured.
    */
   private async compactIfNeeded(): Promise<void> {
-    if (!this._compactionConfig) return;
+    if (!this._compactionConfig) {return;}
 
     const messages = this.getHistory();
-    if (messages.length === 0) return;
+    if (messages.length === 0) {return;}
 
     const model = this._modelName ?? 'unknown';
     const needs = shouldCompact({
@@ -377,7 +377,7 @@ export class AgentOrchestrator {
       thresholdPct: this._compactionConfig.thresholdPct,
     });
 
-    if (!needs) return;
+    if (!needs) {return;}
 
     await this.compact();
   }