Fix version display, deterministic sort, remove duplicate sort

get_version() now returns version.name instead of str(version), which
returned the numeric ID from redminelib.resources.Version. Falls back
to str() when .name is absent (#14).

Add issue.id as tertiary sort key in build_grouped_report so tasks
within the same project+version group always appear in the same order
regardless of API response ordering (#33).

Remove redundant sort from client.fetch_issues_with_spent_time — the
sort already runs in report_builder.build_grouped_report, so doing it
twice wastes CPU. Also remove the now-unused get_version import (#32).

Closes #14, closes #32, closes #33

redmine_reporter/report_builder.py

@@ -35,7 +35,7 @@ def build_grouped_report(
     """
 
     # Защитная сортировка -- гарантирует корректную группировку независимо от порядка на входе
-    issue_hours = sorted(issue_hours, key=lambda x: (str(x[0].project), get_version(x[0])))
+    issue_hours = sorted(issue_hours, key=lambda x: (str(x[0].project), get_version(x[0]), x[0].id))
 
     rows: List[ReportRow] = []
     prev_project: str = ""