news: add entry for mcp module and integrations

Add news entry documenting the new `programs.mcp` module and MCP
integration support in OpenCode and VSCode modules.

Author: delafthi

modules/misc/news/2025/11/2025-11-03_11-18-15.nix

@@ -0,0 +1,25 @@
+{
+  time = "2025-11-03T10:18:15+00:00";
+  condition = true;
+  message = ''
+    A new module 'programs.mcp' is now available for managing Model
+    Context Protocol (MCP) server configurations.
+
+    The 'programs.mcp.servers' option allows you to define MCP servers
+    in a central location. These configurations can be automatically
+    integrated into applications that support MCP.
+
+    Two modules now support MCP integration:
+
+    - 'programs.opencode.enableMcpIntegration': Integrates MCP servers
+      into OpenCode's configuration.
+
+    - 'programs.vscode.profiles.<name>.enableMcpIntegration': Integrates
+      MCP servers into VSCode profiles.
+
+    When integration is enabled, servers from 'programs.mcp.servers' are
+    merged with application-specific MCP settings, with the latter taking
+    precedence. This allows you to define MCP servers once and reuse them
+    across multiple applications.
+  '';
+}