feat: set auto-compact threshold to 165k tokens

Compact earlier to preserve more context fidelity before the window fills.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

container/agent-runner/src/index.ts

@@ -449,7 +449,6 @@ async function runQuery(
             append: globalClaudeMd,
           }
         : undefined,
-      model: 'sonnet[1m]',
       allowedTools: [
         'Bash',
         'Read',
@@ -626,7 +625,7 @@ async function main(): Promise<void> {
   // No real secrets exist in the container environment.
   const sdkEnv: Record<string, string | undefined> = {
     ...process.env,
-    CLAUDE_CODE_AUTO_COMPACT_WINDOW: '200000',
+    CLAUDE_CODE_AUTO_COMPACT_WINDOW: '165000',
   };
 
   const __dirname = path.dirname(fileURLToPath(import.meta.url));