[mod] increase num_ctx, no compaction, docker EDITOR

docker-images/Dockerfile.agent

@@ -96,5 +96,6 @@ ENV PATH="/root/.opencode/bin:$PATH"
 
 #USER 1000:1000
 WORKDIR /workspace
+ENV EDITOR=nano
 ENV SHELL=/bin/zsh
 CMD ["/bin/zsh"]

opencode.cfg/opencode.jsonc

@@ -3,6 +3,11 @@
   "plugin": [],
   "model": "halo/qwen3-coder-next:latest",
   "small_model": "gemma3:4b",
+  "compaction": {
+    "auto": false,
+    "prune": true,
+    "reserved": 16000
+  },
   "provider": {
     "halo": {
       "npm": "@ai-sdk/openai-compatible",
@@ -48,7 +53,7 @@
             "output": 8192 // Output token limit
           },
           "options": {
-            "num_ctx": 16000, // Context window size for Ollama
+            "num_ctx": 64000, // Context window size for Ollama
             "temperature": 1.0,
             "top_p": 0.95,
             "top_k": 40,