tweak: add test and cleanup file

.opencode/opencode.jsonc

@@ -3,15 +3,6 @@
   "provider": {
     "opencode": {
       "options": {},
-      "models": {
-        "claude-opus-4-6": {
-          "limit": {
-            "context": 20000,
-            "input": 20000,
-            "output": 1000,
-          },
-        },
-      },
     },
     "github-copilot": {
       "models": {

packages/opencode/test/session/compaction.test.ts

@@ -843,6 +843,7 @@ describe("session.compaction.process", () => {
           expect(last?.parts[0]).toMatchObject({
             type: "text",
             synthetic: true,
+            metadata: { compaction_continue: true },
           })
           if (last?.parts[0]?.type === "text") {
             expect(last.parts[0].text).toContain("Continue if you have next steps")