Fix additional type checking issues

- Fix return type in get_file method to return empty string instead of None
- Add type ignore for telemetry shutdown method
- Add type ignore for decode method on bytes object
- Fix create_pr_comment to raise exception instead of implicit None return
- Handle None values in repo config path and language fields

These fixes address several type checking diagnostics to improve code quality.

Author: codegen-sh[bot]

src/codegen/cli/telemetry/otel_setup.py

@@ -294,7 +294,7 @@ def shutdown_otel_logging():
         try:
             # Type checker workaround: assert that provider is not None after the check
             assert _logger_provider is not None
-            _logger_provider.shutdown()
+            _logger_provider.shutdown()  # type: ignore[possibly-unbound-attribute]
         except Exception:
             pass  # Ignore shutdown errors
         _logger_provider = None

src/codegen/git/repo_operator/repo_operator.py

@@ -580,7 +580,7 @@ def get_file(self, path: str) -> str:
                     return content
             except UnicodeDecodeError:
                 print(f"Warning: Unable to decode file {file_path}. Skipping.")
-                return None
+                return ""
 
     def write_file(self, relpath: str, content: str) -> None:
         """Writes file content to disk"""
@@ -621,7 +621,7 @@ def get_filepaths_for_repo(self, ignore_list):
                 decoded_filepath, _ = codecs.escape_decode(raw_filepath)
 
                 # Step 4: Decode those bytes as UTF-8 to get the actual Unicode text
-                filepath = decoded_filepath.decode("utf-8")
+                filepath = decoded_filepath.decode("utf-8")  # type: ignore[unresolved-attribute]
 
                 # Step 5: Replace the original filepath with the decoded filepath
                 filepaths[i] = filepath
@@ -765,6 +765,9 @@ def create_pr_comment(self, pr_number: int, body: str) -> IssueComment:
         if pr:
             comment = self.remote_git_repo.create_issue_comment(pr, body)
             return comment
+        else:
+            msg = f"PR {pr_number} not found"
+            raise ValueError(msg)
 
     def create_pr_review_comment(
         self,

src/codegen/git/schemas/repo_config.py

@@ -34,8 +34,8 @@ def from_envs(cls) -> "RepoConfig":
         return RepoConfig(
             name=default_repo_config.name,
             full_name=default_repo_config.full_name,
-            base_dir=os.path.dirname(default_repo_config.path),
-            language=ProgrammingLanguage(default_repo_config.language.upper()),
+            base_dir=os.path.dirname(default_repo_config.path or ""),
+            language=ProgrammingLanguage((default_repo_config.language or "").upper()),
         )
 
     @classmethod