home/zed: update configuration and remove userTasks option

home/modules/zed/default.nix

@@ -58,10 +58,6 @@ let
 in
 {
   options.programs.zed-editor = {
-    userTasks = lib.mkOption {
-      type = lib.types.listOf lib.types.attrs;
-      default = [ ];
-    };
     defaultEditor = lib.mkOption {
       type = lib.types.bool;
       default = false;
@@ -85,8 +81,8 @@ in
         agent = {
           enabled = true;
           default_model = {
-            provider = "zed.dev";
-            model = "claude-haiku-4-5";
+            provider = "OpenCode";
+            model = "opencode/kimi-k2.5";
           };
         };
         auto_update = false;
@@ -210,7 +206,7 @@ in
         edit_predictions = {
           enabled = true;
           mode = "eager";
-          provider = "zed";
+          provider = "copilot";
         };
         buffer_font_family = "Iosevka Nerd Font";
         buffer_font_size = 16;
@@ -222,6 +218,13 @@ in
             "tsconfig.*.json"
           ];
         };
+        agent_servers = {
+          OpenCode = {
+            type = "custom";
+            command = lib.getExe pkgs-unstable.opencode;
+            args = [ "acp" ];
+          };
+        };
       };
       userKeymaps = [
         {
@@ -282,8 +285,6 @@ in
       ];
     };
 
-    xdg.configFile."zed/tasks.json".text = builtins.toJSON cfg.userTasks;
-
     home.sessionVariables = lib.mkIf cfg.defaultEditor {
       EDITOR = lib.getExe cfg.package;
     };