Add Qwen2-7B to the list of zed.dev models (#15649)

Release Notes:

- N/A

---------

Co-authored-by: Nathan <nathan@zed.dev>

crates/language_model/src/model/cloud_model.rs

@@ -1,5 +1,6 @@
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
+use strum::EnumIter;
 
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema)]
 #[serde(tag = "provider", rename_all = "lowercase")]
@@ -7,6 +8,33 @@ pub enum CloudModel {
     Anthropic(anthropic::Model),
     OpenAi(open_ai::Model),
     Google(google_ai::Model),
+    Zed(ZedModel),
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema, EnumIter)]
+pub enum ZedModel {
+    #[serde(rename = "qwen2-7b-instruct")]
+    Qwen2_7bInstruct,
+}
+
+impl ZedModel {
+    pub fn id(&self) -> &str {
+        match self {
+            ZedModel::Qwen2_7bInstruct => "qwen2-7b-instruct",
+        }
+    }
+
+    pub fn display_name(&self) -> &str {
+        match self {
+            ZedModel::Qwen2_7bInstruct => "Qwen2 7B Instruct",
+        }
+    }
+
+    pub fn max_token_count(&self) -> usize {
+        match self {
+            ZedModel::Qwen2_7bInstruct => 8192,
+        }
+    }
 }
 
 impl Default for CloudModel {
@@ -21,6 +49,7 @@ impl CloudModel {
             CloudModel::Anthropic(model) => model.id(),
             CloudModel::OpenAi(model) => model.id(),
             CloudModel::Google(model) => model.id(),
+            CloudModel::Zed(model) => model.id(),
         }
     }
 
@@ -29,6 +58,7 @@ impl CloudModel {
             CloudModel::Anthropic(model) => model.display_name(),
             CloudModel::OpenAi(model) => model.display_name(),
             CloudModel::Google(model) => model.display_name(),
+            CloudModel::Zed(model) => model.display_name(),
         }
     }
 
@@ -37,6 +67,7 @@ impl CloudModel {
             CloudModel::Anthropic(model) => model.max_token_count(),
             CloudModel::OpenAi(model) => model.max_token_count(),
             CloudModel::Google(model) => model.max_token_count(),
+            CloudModel::Zed(model) => model.max_token_count(),
         }
     }
 }