Use the latest versions for Anthropic models instead of dated versions

The reduces the need to update the models and is in line with what is already in
place for Google and OpenAI models.

Author: djr7C4

chatgpt-shell-anthropic.el

@@ -92,23 +92,23 @@ VALIDATE-COMMAND handler."
   (list
    ;; https://docs.anthropic.com/en/docs/about-claude/models#model-comparison-table
    ;; A token is equivalent to _about_ 4 characters.
-   (chatgpt-shell-anthropic--make-model :version "claude-3-7-sonnet-20250219"
-                                        :short-version "3-7-sonnet-20250219"
+   (chatgpt-shell-anthropic--make-model :version "claude-3-7-sonnet-latest"
+                                        :short-version "3.7-sonnet"
                                         :token-width  4
                                         :max-tokens 8192
                                         :context-window 200000)
-   (chatgpt-shell-anthropic--make-model :version "claude-3-5-sonnet-20241022"
-                                        :short-version "3-5-sonnet-20241022"
+   (chatgpt-shell-anthropic--make-model :version "claude-3-5-sonnet-latest"
+                                        :short-version "3.5-sonnet"
                                         :token-width  4
                                         :max-tokens 8192
                                         :context-window 200000)
-   (chatgpt-shell-anthropic--make-model :version "claude-3-5-haiku-20241022"
-                                        :short-version "3-5-haiku-20241022"
+   (chatgpt-shell-anthropic--make-model :version "claude-3-5-haiku-latest"
+                                        :short-version "3.5-haiku"
                                         :token-width  4
                                         :max-tokens 8192
                                         :context-window 200000)
-   (chatgpt-shell-anthropic--make-model :version "claude-3-opus-20240229"
-                                        :short-version "3-opus-20240229"
+   (chatgpt-shell-anthropic--make-model :version "claude-3-opus-latest"
+                                        :short-version "3-opus"
                                         :token-width  4
                                         :max-tokens 4096
                                         :context-window 200000)))