refactor: update imports and usages after Git to Repository rename 🔄

- change import in src/openai.rs from crate::repository::Git to crate::git::repository::Repository
- update test function return type from Git to Repository
- update repository instantiation in test from Git::new to Repository::new
- align code with recent module restructuring for consistency

Signed-off-by: mingcheng <[email protected]>

Author: mingcheng

src/git/message.rs

@@ -9,7 +9,7 @@
  * File Created: 2025-10-16 15:06:58
  *
  * Modified By: mingcheng <[email protected]>
- * Last Modified: 2025-10-16 16:57:08
+ * Last Modified: 2025-10-16 17:03:29
  */
 
 use crate::git::repository::Repository;
@@ -46,10 +46,6 @@ impl GitMessage {
     /// * `Ok(GitMessage)` - A valid commit message
     /// * `Err` - If title or content is empty after trimming
     ///
-    /// # Example
-    /// ```
-    /// let msg = GitMessage::new(&repo, "feat: add feature", "Description here", true)?;
-    /// ```
     pub fn new(
         repository: &Repository,
         title: &str,

src/openai.rs

@@ -171,17 +171,17 @@ impl OpenAI {
 #[cfg(test)]
 mod test {
     use super::*;
-    use crate::repository::Git;
+    use crate::git::repository::Repository;
     use tracing::error;
 
-    fn setup_repo() -> Result<Git, Box<dyn Error>> {
+    fn setup_repo() -> Result<Repository, Box<dyn Error>> {
         let repo_path = std::env::var("TEST_REPO_PATH")
             .map_err(|_| "TEST_REPO_PATH environment variable not set")?;
         if repo_path.is_empty() {
             return Err("Please specify the repository path".into());
         }
 
-        Git::new(&repo_path)
+        Repository::new(&repo_path)
     }
 
     #[test]