update ai plugin to use anthropic

lua/plugins/ai/codecompanion.lua

@@ -21,6 +21,10 @@ return {
     cmd = { 'CodeCompanion', 'CodeCompanionAction', 'CodeCompanionChat', 'CodeCompanionCmd' },
     opts = {
       adapters = {
+        opts = {
+          show_defaults = false,
+          show_model_choices = true,
+        },
         ollama = function()
           return require('codecompanion.adapters').extend('ollama', {
             schema = {
@@ -32,6 +36,11 @@ return {
         end,
         anthropic = function()
           return require('codecompanion.adapters').extend('anthropic', {
+            schema = {
+              model = {
+                default = 'claude-sonnet-4-20250514',
+              },
+            },
             env = {
               api_key = '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',
             },
@@ -41,9 +50,9 @@ return {
       },
       --Refer to: https://github.com/olimorris/codecompanion.nvim/blob/main/lua/codecompanion/config.lua
       strategies = {
-        chat = { adapter = 'ollama' },
-        inline = { adapter = 'ollama' },
-        cmd = { adapter = 'ollama' },
+        chat = { adapter = 'anthropic' },
+        inline = { adapter = 'anthropic' },
+        cmd = { adapter = 'anthropic' },
       },
     },
   },