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));

src/db.ts

@@ -149,15 +149,11 @@ function createSchema(database: Database.Database): void {
 
   // Add reply context columns if they don't exist (migration for existing DBs)
   try {
-    database.exec(
-      `ALTER TABLE messages ADD COLUMN reply_to_message_id TEXT`,
-    );
+    database.exec(`ALTER TABLE messages ADD COLUMN reply_to_message_id TEXT`);
     database.exec(
       `ALTER TABLE messages ADD COLUMN reply_to_message_content TEXT`,
     );
-    database.exec(
-      `ALTER TABLE messages ADD COLUMN reply_to_sender_name TEXT`,
-    );
+    database.exec(`ALTER TABLE messages ADD COLUMN reply_to_sender_name TEXT`);
   } catch {
     /* columns already exist */
   }