Update flake.lock and add Cerebras LLM to Zed

Uncomment development package imports and include the `opencode` tool in
both system and Zed packages. Update librewolf’s search URL template and
refresh locked revisions, hashes, and timestamps in the flake.lock.

modules/core/packages/default.nix

@@ -4,7 +4,7 @@
   imports = [
     ./programs.nix
     ./clients.nix
-    # ./development.nix
+    ./development.nix
     ./gaming.nix
     ./multimedia.nix
     ./terminal.nix

modules/core/packages/development.nix

@@ -3,5 +3,7 @@
   environment.systemPackages = with pkgs; [
     # Learning & practice
     exercism
+    # AI coding
+    opencode
   ];
 }

modules/home/librewolf.nix

@@ -157,13 +157,7 @@
                 icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
                 urls = [
                   {
-                    template = "https://home-manager-options.extranix.com/release=master";
-                    params = [
-                      {
-                        name = "query";
-                        value = "{searchTerms}";
-                      }
-                    ];
+                    template = "https://home-manager-options.extranix.com/?query={searchTerms}&release=master";
                   }
                 ];
               };

modules/home/zed.nix

@@ -24,6 +24,7 @@
       "html-jinja"
       "deputy"
       "biome"
+      "opencode"
     ];
 
     extraPackages = with pkgs; [
@@ -31,6 +32,7 @@
       rust-analyzer
       nixd
       nil
+      opencode
     ];
 
     userSettings = {
@@ -38,8 +40,53 @@
         always_allow_tool_actions = true;
         default_profile = "ask";
         default_model = {
-          provider = "anthropic";
-          model = "claude-sonnet-4-latest";
+          provider = "Cerebras";
+          model = "gpt-oss-120b";
+        };
+      };
+      language_models = {
+        openai_compatible = {
+          Cerebras = {
+            api_url = "https://api.cerebras.ai/v1";
+            available_models = [
+              {
+                name = "qwen-3-235b-a22b-instruct-2507";
+                display_name = "Qwen 3 235B Instruct";
+                max_tokens = 65000;
+                max_output_tokens = 32000;
+                capabilities = {
+                  tools = true;
+                  images = true;
+                  parallel_tool_calls = true;
+                  prompt_cache_key = false;
+                };
+              }
+              {
+                name = "llama-3.3-70b";
+                display_name = "Llama 3.3 70B";
+                max_tokens = 65000;
+                max_output_tokens = 32000;
+                capabilities = {
+                  tools = true;
+                  images = true;
+                  parallel_tool_calls = true;
+                  prompt_cache_key = true;
+                };
+              }
+              {
+                name = "gpt-oss-120b";
+                display_name = "OpenAI GPT OSS";
+                max_tokens = 65000;
+                max_output_tokens = 32000;
+                capabilities = {
+                  tools = true;
+                  images = true;
+                  parallel_tool_calls = true;
+                  prompt_cache_key = false;
+                };
+              }
+            ];
+          };
         };
       };
       telemetry = {
@@ -130,5 +177,6 @@
         };
       };
     };
+
   };
 }