chore(opencode): cap Luna and DeepSeek V4.1 Flash context under Luna's 272K pricing cliff

.gitignore

@@ -0,0 +1,10 @@
+# Nix build result symlink
+/result
+
+# Runtime state and caches (not user config)
+home/.config/beets/state.pickle
+home/.config/herdr/.plugins.lock
+home/.config/herdr/*.log
+home/.config/herdr/*.sock
+home/.config/herdr/session.json
+home/.config/herdr/release-notes.json

home/.config/opencode/opencode.json

@@ -21,6 +21,24 @@
           }
         }
       }
+    },
+    "opencode-go": {
+      "models": {
+        "gpt-6-luna": {
+          "limit": {
+            "context": 256000,
+            "input": 256000,
+            "output": 128000
+          }
+        },
+        "deepseek-v4.1-flash": {
+          "limit": {
+            "context": 256000,
+            "input": 256000,
+            "output": 128000
+          }
+        }
+      }
     }
   },
   "plugin": ["/Users/laptran/.automaton/plugins/automaton-guard"],

home/.config/opencode2/opencode.json

@@ -24,6 +24,17 @@
           }
         }
       }
+    },
+    "opencode-go": {
+      "models": {
+        "gpt-6-luna": {
+          "limit": {
+            "context": 256000,
+            "input": 256000,
+            "output": 128000
+          }
+        }
+      }
     }
   }
 }