Add personal opencode config

hosts/home/common.nix

@@ -18,5 +18,7 @@
   dot.llm = {
     enable = true;
     gemini-cli.enable = true;
+    opencode.enable = true;
+    opencode.enableConfig = true;
   };
 }

modules/home/opencode.nix

@@ -10,6 +10,8 @@ in
       default = false;
       description = "Enable managed OpenCode configuration";
     };
+
+    workMode = lib.mkEnableOption "work-specific opencode configuration";
   };
 
   config = lib.mkIf cfg.enableConfig {
@@ -20,12 +22,16 @@ in
 
     # Create the OpenCode config.json template with secret substitution
     sops.templates."opencode/opencode.json" = {
-      content = builtins.toJSON {
+      content = builtins.toJSON (let
+        baseConfig = {
           "$schema" = "https://opencode.ai/config.json";
-        model = "anthropic/claude-sonnet-4-5-20250929";
-        small_model = "anthropic/claude-haiku-4-5-20251001";
           default_agent = "plan";
+        };
+
+        workConfig = {
           enabled_providers = [ "anthropic" "langdock-openai" "ollama" ];
+          model = "anthropic/claude-opus-4-6-default";
+          small_model = "anthropic/claude-haiku-4-5-20251001";
           provider = {
             langdock-openai = {
               npm = "@ai-sdk/openai-compatible";
@@ -64,6 +70,17 @@ in
             };
           };
         };
+
+        personalConfig = {
+          plugin = [ "opencode-gemini-auth@latest" ];
+          model = "google/gemini-3-pro-preview";
+          small_model = "google/gemini-3-flash-preview";
+          enabled_providers = [ "google" ];
+        };
+      in
+        # Merge base config with the selected mode config
+        baseConfig // (if cfg.workMode then workConfig else personalConfig)
+      );
     };
 
     # Link the generated config to the expected location